The HJC IS-17 helmet is one of the most popular in HJC street helmets, made of advanced polycarbonate composite and with a new 3D face shield design. It is kind of a mixture of the HJC FG-17 and the HJC CL-17, although the FG-17 has a fiberglass composite shell and the IS-17 has a different fit than both the CL-17 and FG-17. Although the IS-17 has a comfortable fit and a sun visor that provides excellent coverage, it does not have good ventilation and the internal sun visor means it does not have Snell certification.
HJC IS-17 Motorcycle Helmet Overall Quality
All the parts of the IS-17 move together well despite the fact that the recommended retail price is around $162. Despite the cost, the paint and finish are good quality and comparable to helmets that are similarly priced, although it should not be compared to higher priced helmets like Arai or Shoei. The chin curtain, like the CL-17, is an option, although for a few extra dollars, it could be included as standard. The pinlock insert is also an option, although it is not as critical as the chin curtain. The clear plastic face shield has some waviness and clouding that could result in a visibility problem. In addition to the face shield, the fact that 85 percent of the vent holes are blocked is an issue. Very little air flows through the vents to the rider and the fabric liner across the top blocks the top vent.
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Helmet Fit, Internal Shape and Liner
The sizing seems slightly off in the IS-17 with an “XL” fitting more like an “L” and the internal shape feels mostly “neutral” rather than “slightly round” like other HJC helmets. This may be due to the sun visor at the forehead which gives a feeling of less room inside the helmet and a snug fit. The interior is nicely padded and the fabric comfortable. You can remove the cheek pads and liner for washing. There are also optional cheek pads in sizes that range from XS, at 40 mm thickness, to XXL, at 25 mm thickness.
HJC IS-17 Face Shield, Outward Visibility
The face shield operation in the IS-17 is exactly the same as the FG-17 with a center locking lift tab that works fine on the helmet. The center locking lift tab also allows you to adjust for city positions or for an initial defogging. It does have waviness that could affect visibility and which some riders may find unacceptable. The eye ports seem to be slightly better than average despite the sun visor. Once the shield is locked shut, it seals tightly around the eye port gasket. Water drains away from the rider along the top of the gasket and along the sides through a rotating mechanism. The face shield is easy to remove and can be replaced with optional mirrored or tinted face shields.
Helmet Ventilation and Air Flow
Ventilation and air flow in the helmet is one of the biggest problems. The top vent looks as if it should draw in a lot of air but the holes through the lining do not come close to lining up with the vents. In addition, the fabric liner blocks the vent holes to the point that even if air came into the helmet, you would not feel it because the holes are covered. This is not only true of the top vent, but also for the rear exhaust vents. The chin vent does direct air up, but it is an option with a price of between $4 and $5, something that is worth the added cost.
How are the Helmet Sound Levels?
The HJC IS-17 is quieter than most helmets with general wind noise around the sides. However, since the fit is tighter than other HJC helmets, it keeps the noise levels low. It works well as a windscreen and has low turbulence noise as well. Because the top vent holes are blocked, there is very little noise from the top of the helmet.
Although most of the features of the IS-17 make it a good option, the fact that it does not have the Snell M2010 rating is a major drawback. Studies have shown that nearly 23 percent of helmet impacts are in the forehead region where the internal sun visor sits. In addition, the top vent system and the wavy face plate present significant problems.
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Maximizing Performance: Upgrades for Your Sportbike
Riding a sportbike is a thrilling experience, but even the most advanced models can benefit from performance upgrades. Whether you’re a competitive racer or simply enjoy the thrill of high-speed riding, there are several modifications you can make to enhance the performance of your sportbike.
Upgrade Your Exhaust System: Unlock Hidden Power with an Exhaust System Upgrade
An exhaust system is an essential component of any engine, as it controls the flow of gases generated during combustion. The stock exhaust system on most sportbikes is designed to meet noise and emissions regulations, which can limit the performance of the engine.
However, aftermarket exhaust systems can offer improved airflow, allowing the engine to breathe more easily and increasing horsepower. An aftermarket exhaust system can be made from materials that are lighter and stronger than the stock system, reducing weight and improving performance. Additionally, aftermarket exhaust systems often feature larger-diameter pipes, which allow for greater airflow and improved power output.
If you’re looking for the greatest gains in performance, consider a full exhaust system replacement, including headers and muffler. The headers are the tubes that carry the exhaust gases from the engine to the muffler, and an aftermarket set can be designed with a larger diameter and improved shape to reduce backpressure and increase horsepower. The muffler is responsible for controlling noise levels, and an aftermarket muffler can offer improved sound and performance while still meeting noise regulations.
Upgrading your sportbike’s exhaust system can unlock hidden power and enhance its performance. While the stock exhaust system may meet noise and emissions regulations, it can limit the engine’s ability to breathe and generate power. An aftermarket exhaust system, including headers and muffler, can improve airflow and increase horsepower, allowing you to get the most out of your sportbike.
Enhance Your Air Intake: Breath Easy with an Air Intake Upgrade
The air intake system is responsible for delivering air to the engine, and it can play a crucial role in determining the performance of the engine. The stock air intake system on most sportbikes is designed to meet emissions regulations, which can restrict the airflow to the engine and reduce performance.
Upgrading to a high-flow air filter or a cold air intake can increase the amount of air entering the engine, providing a noticeable improvement in horsepower. High-flow air filters allow for a greater volume of air to enter the engine, providing a more oxygen-rich mixture that can improve combustion and increase horsepower. Cold air intakes work by relocating the air filter to a location outside the engine bay, where it can draw in cooler, denser air. This increased airflow can provide a noticeable improvement in horsepower.
Enhancing your air intake system can provide a noticeable improvement in horsepower and performance. The stock air intake system on most sportbikes is designed to meet emissions regulations, which can restrict airflow to the engine and reduce performance. Upgrading to a high-flow air filter or a cold air intake can increase the amount of air entering the engine, providing a more oxygen-rich mixture and a noticeable improvement in horsepower.
Fine-Tune Your Engine Management System: Re-Map Your Engine or Install a Power Commander
The engine management system is responsible for controlling the fuel and air mixture delivered to the engine, and it plays a critical role in determining the performance of the engine. The stock engine management system on most sportbikes is designed to meet emissions regulations, which can be restrictive and limit performance.
Installing a Power Commander or having the engine management system re-mapped can improve throttle response and power delivery, allowing the engine to operate more efficiently. A Power Commander is an aftermarket device that allows you to fine-tune the engine management system by adjusting the fuel and air mixture delivered to the engine. This can provide improved throttle response and increased power output, allowing you to get the most out of your sportbike.
Re-mapping the engine management system involves modifying the software that controls the fuel and air mixture delivered to the engine. This can provide improved throttle response and increased power output, allowing the engine to operate more efficiently.
Fine-tuning your engine management system can provide noticeable improvements in throttle response and power delivery. The stock engine management system on most sportbikes is designed to meet emissions regulations, which can be restrictive and limit performance. Installing a Power Commander or having the engine management system re-mapped can provide improved throttle response and increased power output, allowing you to get the most out of your sportbike.
Get the Ultimate Ride with a Suspension Upgrade: Suspension Upgrade
The suspension on a sportbike is one of the most important components in determining handling and stability. The stock suspension components on most sportbikes are designed to provide a balance between comfort and performance, but they may not meet the demands of all riders.
Upgrading to aftermarket suspension components, such as forks, shocks, and springs, can offer improved handling and a more comfortable ride. Suspension upgrades can also allow riders to fine-tune the suspension settings to suit their individual riding style and track conditions. High-performance suspension components can offer improved responsiveness and stability, allowing you to get the most out of your sportbike.
Forks and shocks are two of the most important suspension components, and upgrading them can offer a noticeable improvement in handling and stability. Upgraded forks can provide improved responsiveness, allowing you to negotiate turns with greater ease. Upgraded shocks can provide improved damping, allowing the rear tire to remain in contact with the road, even under hard acceleration or braking.
A suspension upgrade can provide a noticeable improvement in handling and stability, as well as a more comfortable ride. The stock suspension components on most sportbikes are designed to provide a balance between comfort and performance, but they may not meet the demands of all riders. Upgrading to aftermarket suspension components, such as forks, shocks, and springs, can allow riders to fine-tune the suspension settings to suit their individual riding style and track conditions.
Stop on a Dime with a Brake Upgrade: Brake Upgrade
Braking performance is critical for riders who like to push the limits of their sportbike’s performance. The stock brake components on most sportbikes are designed to provide a balance between performance and affordability, but they may not meet the demands of all riders.
Upgrading to high-performance brake pads and larger rotors can provide a noticeable improvement in braking performance, helping riders feel more confident on the track or road. High-performance brake pads can offer improved bite and modulation, allowing you to stop quickly and smoothly. Larger rotors can provide improved heat dissipation and stopping power, allowing you to slow down faster and with greater confidence.
Upgrading your brake components can provide a noticeable improvement in braking performance, helping riders feel more confident on the track or road. The stock brake components on most sportbikes are designed to provide a balance between performance and affordability, but they may not meet the demands of all riders. Upgrading to high-performance brake pads and larger rotors can provide improved bite and modulation, as well as increased stopping power, allowing you to stop quickly and confidently.
Conclusion
In conclusion, upgrading your sportbike can significantly enhance its performance and make it even more enjoyable to ride. These modifications can improve power delivery, handling, braking, and overall ride quality. However, it’s important to choose upgrades that are compatible with your bike and to have them installed by a professional to ensure optimal performance and safety. Whether you’re looking for a competitive edge or simply want to improve your riding experience, there are many options available for maximizing the performance of your sportbike.
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The Art of Cornering on a Sportbike
Cornering is an essential skill for sportbike riders, and it requires a combination of physical and mental techniques to be executed effectively. From maintaining control in a lean to anticipating turns and navigating curves, cornering is an art that requires practice, patience, and confidence. In this comprehensive guide, we’ll explore the fundamentals of cornering on a sportbike and provide tips and tricks to help you become a more confident and skilled rider.
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Understanding the Physics of Cornering
The key to effective cornering on a sportbike is understanding the physics behind the maneuver. When you enter a turn, the centrifugal force of the turn pushes the bike away from the center of the turn, and the suspension compresses, causing the bike to lean in the direction of the turn. Maintaining control in a lean requires balancing the force of gravity, which tries to pull the bike down, with the centrifugal force, which tries to push the bike out.
By understanding the physics of cornering, you can gain a better appreciation for the forces acting on your bike and the techniques required to counterbalance these forces. For example, you can use your body weight to shift in the direction of the turn, which helps to balance the forces acting on the bike and maintain stability and control in a lean.
The physics of cornering on a sportbike involves a complex interplay between the forces of gravity, friction, and centripetal force. When a rider enters a turn, gravity pulls the bike towards the center of the turn, creating a natural tendency to lean into the turn. To counteract this gravitational pull and maintain balance, the rider must apply a countervailing force known as centripetal force. This force is generated by leaning the bike into the turn and applying a slight amount of pressure to the inside handlebar.
The amount of lean required to maintain balance in a turn is largely dependent on the speed of the bike and the radius of the turn. The faster the bike is moving, the more lean is required to maintain control. Conversely, the tighter the turn, the more lean is required. To achieve the optimal balance between speed and lean, riders must coordinate their inputs to the handlebars, throttle, and brakes.
Friction also plays an important role in the physics of cornering. The tires on a sportbike are designed to provide a high level of grip and traction, allowing the rider to carve through turns with confidence. However, this grip can be easily compromised by factors such as road surface, tire wear, and weather conditions. To maximize traction and grip, it is important to maintain the correct tire pressure and keep the tires in good condition, as well as adapting your riding style to the conditions of the road.
By understanding the physics of cornering, riders can develop a deeper appreciation for the dynamics of their sportbike and the techniques required to maintain control and stability in turns. With this knowledge, riders can make more informed decisions about their riding technique and make the necessary adjustments to their speed, trajectory, and body position to ensure a safe and enjoyable riding experience.
Body Position and Control
Effective cornering on a sportbike requires proper body position and control. To maintain balance and control in a lean, you need to keep your weight centered over the bike and use your body to counterbalance the forces acting on the bike. Your inside hand should grip the handlebars firmly, while your outside hand should be relaxed and ready to make adjustments. Your inside knee should be tucked into the tank, and your outside foot should be positioned on the peg for stability.
Maintaining proper body position and control is essential for effective cornering, as it allows you to respond quickly and effectively to changes in the road and the forces acting on the bike. By keeping your weight centered over the bike, you can maintain balance and control, and by using your body to counterbalance the forces acting on the bike, you can prevent the bike from tipping over in a turn.
Body position and control are critical components of effective cornering on a sportbike. Proper body position allows the rider to maintain balance and control over the bike, while also improving visibility and stability. The key elements of proper body position include:
- Lean Angle: The rider’s lean angle should be adjusted to match the speed and radius of the turn. As the speed increases or the turn tightens, the lean angle should increase accordingly. Riders should aim to maintain a smooth and gradual lean, avoiding sudden or excessive movements that can upset the balance of the bike.
- Weight Distribution: The rider’s weight should be shifted towards the inside of the turn, helping to counteract the gravitational pull towards the center of the turn. This can be achieved by shifting the rider’s body weight to the inside footpeg, while maintaining a firm grip on the handlebars.
- Upper Body: The rider’s upper body should be kept as relaxed and upright as possible, avoiding any unnecessary movements that can affect the balance of the bike. The rider should maintain a firm grip on the handlebars, using a light touch to control the bike’s movements.
- Lower Body: The rider’s lower body should be kept as still and relaxed as possible, avoiding any unnecessary movements that can affect the stability of the bike. The rider should maintain a firm grip on the footpegs, using their knees to grip the tank and maintain control over the bike.
By maintaining proper body position and control, riders can ensure a smoother and more stable ride, improving their ability to negotiate turns and respond to changing road conditions. However, it is important to note that body position and control should be adapted to the conditions of the road and the rider’s personal comfort and preference. With practice and experience, riders can develop a more refined and personalised approach to body position and control, improving their cornering skills and overall riding experience.
Braking and Acceleration Techniques
The timing and technique of braking and acceleration play a critical role in effective cornering on a sportbike. As you approach a turn, you should reduce your speed by applying the brakes smoothly and progressively. After entering the turn, you should ease off the brakes and maintain a constant speed, using the throttle as needed to maintain balance and control. As you exit the turn, you should smoothly apply the throttle to accelerate out of the turn and onto the straightaway.
Effective braking and acceleration techniques are essential for maintaining control and stability in a turn. By reducing your speed before entering a turn, you can reduce the forces acting on the bike and maintain control in a lean. By easing off the brakes after entering the turn, you can maintain a constant speed and use the throttle as needed to maintain balance and control. And by accelerating smoothly out of the turn, you can build up speed and exit the turn with confidence.
Braking and acceleration techniques are crucial components of effective cornering on a sportbike. These techniques allow the rider to control the speed and trajectory of the bike, improving stability and confidence in turns. The key principles of braking and acceleration techniques include:
- Braking: Braking should be performed as smoothly and progressively as possible, avoiding any sudden or jerky movements. The rider should aim to maintain a consistent speed throughout the turn, avoiding any sudden changes in speed that can affect stability. When braking, the rider should apply the front brake first, followed by the rear brake, adjusting the amount of pressure applied to each brake to suit the conditions of the road and the speed of the bike.
- Acceleration: Acceleration should be performed smoothly and progressively, avoiding any sudden or excessive changes in speed. The rider should aim to maintain a consistent speed throughout the turn, avoiding any sudden changes in speed that can affect stability. When accelerating, the rider should use the throttle to control the speed of the bike, adjusting the amount of throttle applied to suit the conditions of the road and the speed of the bike.
By combining proper braking and acceleration techniques with proper body position and control, riders can achieve a smoother and more stable ride, improving their ability to negotiate turns and respond to changing road conditions. However, it is important to note that braking and acceleration techniques should be adapted to the conditions of the road and the rider’s personal comfort and preference. With practice and experience, riders can develop a more refined and personalized approach to braking and acceleration, improving their cornering skills and overall riding experience.
Look Ahead and Anticipate Turns
Effective cornering on a sportbike requires you to look ahead and anticipate turns well in advance. By keeping your gaze fixed on the road ahead, you can spot obstacles and make necessary adjustments to your speed and trajectory. You should also scan the road for hazards, such as gravel, potholes, or wet spots, and avoid them whenever possible.
Looking ahead and anticipating turns is a critical component of effective cornering on a sportbike. By looking ahead and anticipating turns, riders can improve their visibility, reaction time, and stability, allowing them to negotiate turns with greater confidence and control. The key principles of look ahead and anticipating turns include:
- Look Ahead: Riders should keep their gaze focused on the road ahead, looking several seconds ahead of the bike to anticipate turns and other road hazards. This allows the rider to react in a timely manner, avoiding any sudden or unexpected movements that can affect stability.
- Anticipate Turns: Riders should anticipate turns by scanning the road ahead for any changes in direction or road conditions. This allows the rider to prepare for the turn in advance, adjusting their speed, body position, and control accordingly.
- Plan Your Line: Riders should plan their line through the turn, anticipating the path of the bike and the trajectory of the turn. This allows the rider to negotiate the turn with greater control and stability, improving their ability to maintain a consistent speed and line.
By combining proper look ahead and anticipating turns with proper body position and control, riders can achieve a smoother and more stable ride, improving their ability to negotiate turns and respond to changing road conditions. However, it is important to note that look ahead and anticipating turns should be adapted to the conditions of the road and the rider’s personal comfort and preference. With practice and experience, riders can develop a more refined and personalised approach to look ahead and anticipating turns, improving their cornering skills and overall riding experience.
Practice and Refine Your Techniques
Effective cornering on a sportbike requires practice, patience, and confidence. While it may take some time to develop the skills and techniques required to corner with confidence, with practice and refinement, you can become a more skilled and confident rider. To improve your cornering skills, consider practicing on a safe and controlled environment, such as a track day or a closed course. You can also seek feedback from more experienced riders and instructors to help refine your techniques and identify areas for improvement.
Conclusion
Cornering is an essential skill for sportbike riders, and it requires a combination of physical and mental techniques to be executed effectively. From understanding the physics of cornering to maintaining proper body position and control, braking and acceleration techniques, and looking ahead and anticipating turns, there are many factors that contribute to effective cornering on a sportbike. With practice, patience, and confidence, you can develop the skills and techniques required to corner with confidence and enjoy a safer and more enjoyable riding experience.
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How to Properly Maintain Your Sportbike
Understanding the Importance of Sportbike Maintenance
Owning a sportbike is an exciting and rewarding experience, but it also comes with responsibilities. Proper maintenance is essential to ensure the longevity and performance of your bike, and to keep you safe on the road. In this comprehensive guide, we’ll explore the key components of sportbike maintenance and provide tips and tricks for keeping your bike in top condition.
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Regular Maintenance Schedules: The Key to a Long-Lasting Sportbike
Regular maintenance is key to keeping your sportbike running smoothly and avoiding costly repairs down the road. The recommended maintenance schedule will vary depending on the make and model of your bike, as well as your riding style. Make sure to consult your owner’s manual for specific maintenance recommendations, and keep a record of all services and repairs performed on your bike. It’s always a good idea to perform routine checks on your sportbike to catch any potential issues early on. This can include checking fluid levels, the condition of hoses and belts, and the general state of the bike’s components.
Engine Oil and Filter Changes
One of the most important components of sportbike maintenance is regular engine oil and filter changes. Engine oil keeps your engine lubricated and prevents wear and tear, while the oil filter removes impurities from the oil. Oil changes should be performed at the intervals specified in your owner’s manual, and you should always use high-quality, recommended engine oil and filters. Skipping oil changes or using low-quality oil can cause serious damage to your engine, reduce fuel efficiency, and negatively impact performance.
Air Filter Cleaning or Replacing
The air filter is responsible for removing dirt and debris from the air that enters the engine. Dirty air filters can cause poor engine performance, reduced fuel efficiency, and even engine damage. Clean or replace your air filter at the intervals specified in your owner’s manual, or more often if you frequently ride in dusty or dirty conditions. Cleaning or replacing the air filter is a simple and inexpensive process that can greatly improve the performance and longevity of your sportbike.
Brake System Maintenance
The brake system is one of the most critical components of your sportbike, and proper maintenance is essential for safety. Regular brake inspections should be performed, and brake pads should be replaced as soon as they show signs of wear. The brake fluid should also be checked and replaced at the intervals specified in your owner’s manual. Worn or contaminated brake fluid can cause braking problems, and can negatively impact the overall performance of your brake system.
Tires
Tires are the only point of contact between your sportbike and the road, and they play a crucial role in handling and safety. Regular tire inspections should be performed, and tires should be replaced as soon as they show signs of wear or damage. Make sure to check the tire pressure regularly, as underinflated tires can cause handling problems and reduce fuel efficiency. Tires should also be rotated regularly to ensure even wear and extend their lifespan.
Battery Maintenance
Sportbike batteries can be expensive to replace, and proper maintenance is essential to extend their lifespan. Regular battery inspections should be performed, and batteries should be charged regularly if they are not being used. Make sure to disconnect the battery before performing any maintenance on your bike to avoid electrical problems. A battery that is not properly maintained can fail unexpectedly, leaving you stranded on the road.
Chain Maintenance
The chain is an essential component of your sportbike’s drivetrain, and proper maintenance is essential for smooth and efficient operation. Regular chain inspections should be performed, and the chain should be lubricated at the intervals specified in your owner’s manual. Make sure to use continue high-quality chain lubricant, and avoid getting lubricant on the brakes or tires. A worn or poorly lubricated chain can cause performance problems and even cause damage to other components of the drivetrain.
Suspension Maintenance
The suspension system of a sportbike plays a critical role in handling, comfort, and safety. Regular suspension inspections should be performed, and components should be replaced as soon as they show signs of wear or damage. Make sure to check the suspension settings and adjust them as necessary to match your riding style and the conditions you’ll be riding in. A poorly maintained suspension system can cause handling problems, reduce comfort, and negatively impact your overall riding experience.
Electrical System Maintenance
The electrical system of your sportbike is responsible for powering all of the bike’s components and accessories. Regular electrical system inspections should be performed, and components should be replaced as soon as they show signs of wear or damage. Make sure to check the battery, charging system, and all electrical connections for any signs of corrosion or damage. A poorly maintained electrical system can cause performance problems, reduce reliability, and even leave you stranded on the road.
Body and Fairing Maintenance
The body and fairing of your sportbike not only protect you from the wind and debris but also give your bike its signature look. Regular body and fairing inspections should be performed, and components should be replaced as soon as they show signs of wear or damage. Make sure to wash your sportbike regularly, and use high-quality wax or polish to protect the paint and prevent fading. A poorly maintained body and fairing can reduce the overall value of your bike, and make it more vulnerable to damage from the elements.
Conclusion:
Owning a sportbike is an exciting and rewarding experience, but it also comes with responsibilities. Proper maintenance is essential to ensure the longevity and performance of your bike, and to keep you safe on the road. By following the tips and tricks outlined in this comprehensive guide, you can keep your sportbike running smoothly, avoid costly repairs, and ensure that your riding experience is as enjoyable and safe as possible. Whether you’re an experienced rider or a newcomer to the sport, taking the time to properly maintain your sportbike is a worthwhile investment in your enjoyment and safety on the road.
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