How to Make a Honda Grom Go Faster: Top Modifications and Riding Techniques for Enhanced Speed

Ever wonder how to make your Honda Grom zip past the competition? You’re not alone. Many riders love the thrill of speed and want to unlock the full potential of their bikes.

Key Takeaways

• Understanding Specifications: The Honda Grom features a 125cc single-cylinder engine that produces 9.7 horsepower, with a lightweight design aiding in agility and performance.
• Identifying Speed Limitations: Common factors that limit speed include excess weight, factory restrictors, tire performance, and aerodynamics, which can be optimized for improved acceleration and top speed.
• Engine Modifications: Upgrading the air filter, ECU, carburetor, and exhaust system are pivotal for enhancing horsepower and overall bike performance.
• Tuning Your Grom: ECU remapping and carburetor adjustments are essential for optimizing throttle response and increasing power, making a significant impact on speed.
• Weight Reduction Techniques: Removing unnecessary components and investing in lightweight accessories like aluminum rims and a lithium-ion battery can effectively boost performance.
• Improving Riding Techniques: Mastering acceleration and cornering techniques, such as effective throttle control and body positioning, can enhance the Grom’s speed and handling capabilities.

Understanding The Honda Grom’s Performance

The Honda Grom features a compact and efficient design, appealing to many riders looking to boost performance. Understanding its specifications and common speed limitations provides insights into improving its overall speed.

Specifications Overview

The Honda Grom is equipped with a 125cc single-cylinder engine. This engine generates around 9.7 horsepower at 7,000 RPM and 8.0 lb-ft of torque at 5,500 RPM. The lightweight design, weighing approximately 225 pounds, contributes to its agility. Key specifications include:

• Engine Type: Single-cylinder, air-cooled
• Bore x Stroke: 52.4 mm x 57.9 mm
• Transmission: 4-speed manual with automatic clutch
• Fuel System: PGM-FI electronic fuel injection

These features influence handling, acceleration, and top speed, which typically reaches around 60 mph under optimal conditions.

Common Speed Limitations

Several factors limit the Honda Grom’s speed, affecting overall performance. Addressing these can lead to noticeable enhancements. Common speed limitations include:

• Weight Capacity: Carrying excess weight reduces acceleration and top speed.
• Factory Restrictors: Some models include restrictors to limit power output; removing these can significantly enhance speed.
• Tire Type: Stock tires may not provide optimal grip, leading to slippage during acceleration.
• Aerodynamics: Wind resistance impacts speed; additional modifications to reduce drag can improve performance.

By understanding these limitations, you can implement targeted modifications that maximize the Grom’s capabilities.

Engine Modifications

Enhancing your Honda Grom’s speed requires strategic engine modifications. These adjustments can maximize performance and elevate your riding experience.

Performance Upgrades

Increasing horsepower and torque boosts speed. Consider an upgraded air filter that improves airflow and a performance ECU (engine control unit) that fine-tunes fuel maps. Replace the stock carburetor with a larger model for better fuel delivery. A big bore kit significantly raises engine displacement; installing a 155cc or 183cc kit transforms the Grom’s power. For optimum results, pair these upgrades with a performance camshaft designed for improved valve timing.

Exhaust System Improvements

A high-performance exhaust system reduces back pressure, allowing the engine to expel gases more efficiently. Choose a full exhaust system over a slip-on for more significant gains. Look for options made from lightweight materials, like titanium, to reduce overall weight. Brands like Yoshimura and Akrapovic offer trusted choices that enhance both sound and performance. Ensure your new exhaust complies with local noise regulations to avoid legal issues. Installing a header designed for increased flow complements the exhaust system changes, further elevating horsepower.

Tuning Options

Tuning your Honda Grom can significantly enhance its speed and performance. Consider the following options to optimize your ride.

ECU Remapping

ECU remapping modifies the engine’s electronic control unit settings. By adjusting fuel maps and ignition timing, you can achieve improved throttle response and increased horsepower. Start by using a performance ECU or a tuning device compatible with the Grom. Software such as TuneECU lets you customize the parameters. After remapping, ensure the bike’s AFR (air-fuel ratio) remains balanced, as an incorrect ratio can harm performance or damage the engine.

Carburetor Adjustments

Carburetor adjustments play a crucial role in enhancing your Grom’s performance. Increasing the carburetor size allows for a higher air-fuel mixture, leading to more power. Begin by replacing the stock carburetor with a larger model, such as a 140 main jet. Fine-tune the idle and mixture screws to optimize performance. Regularly check for air leaks to ensure consistent airflow, which directly impacts throttle response and overall speed.

Weight Reduction Techniques

Reducing weight on your Honda Grom boosts speed and enhances performance. Here are effective strategies to lighten your bike without compromising safety or functionality.

Removing Unnecessary Components

Check for components that don’t contribute to performance or practicality.

• Stock Mirrors: Replacing bulky mirrors with small bar-end mirrors minimizes weight.
• Passenger Footpegs: If your Grom is a solo ride, removing these can save weight and streamline the look.
• Excessive Body Panels: Remove or replace unnecessary plastic components with lightweight options, like carbon fiber.

Lightweight Accessories

Investing in lighter accessories makes a noticeable difference.

• Rims: Swap out stock rims for lightweight aluminum or magnesium rims to improve acceleration and handling.
• Exhaust Systems: Consider a high-performance exhaust made from materials like titanium to reduce weight and enhance airflow.
• Battery: A lithium-ion battery significantly reduces weight compared to traditional lead-acid batteries.

Focus on these strategies to maximize your Grom’s speed potential effectively.

Riding Techniques

Mastering riding techniques can significantly enhance your Honda Grom’s speed and performance. Using the right techniques creates an exhilarating ride that makes the most of your bike’s capabilities.

Better Acceleration Techniques

Maximize acceleration by practicing these techniques:

1. Throttle Control: Apply the throttle smoothly and progressively. Sudden jolts can lead to wheel spin, reducing traction and speed.
2. Body Position: Lean forward when accelerating. This shifts weight to the front tire, increasing grip and enhancing acceleration.
3. Shift Timing: Shift gears at optimal RPMs. For the Grom, shifting near 9,000 RPM typically provides the best performance without bogging down.
4. Launch Technique: During a start, aim for a quick and controlled release of the clutch while gradually adding throttle. This prevents stalling and enhances initial speed.

Handling and Cornering Skills

Improving handling and cornering maximizes your Grom’s agility and speed. Consider these skills:

1. Body Leaning: Lean your body into turns to balance the bike better. This reduces the need to slow down, maintaining speed through corners.
2. Look Ahead: Focus on the exit of a turn rather than the entry. This habit helps in anticipating what’s next, allowing smoother cornering and acceleration out of bends.
3. Smooth Inputs: Use steady steering motions; abrupt movements can upset your bike’s balance. Aim for fluid steering and throttle applications.
4. Use of Brakes: Apply brakes gently before entering a turn. Avoid heavy braking in the corner as it can destabilize your bike and slow your momentum.

Practicing these techniques will result in improved performance, allowing your Honda Grom to achieve its full speed potential while providing an enjoyable riding experience.

Conclusion

Boosting the speed of your Honda Grom is all about the right modifications and techniques. By focusing on engine upgrades and optimizing your bike’s weight you’ll unlock its full potential.

Don’t forget the importance of mastering your riding skills. Smooth throttle control and proper body positioning can make a world of difference. With a little effort and creativity you can transform your Grom into a speedy machine that gives you the thrill you crave.

So gear up and enjoy the ride as you take your Honda Grom to new heights!

Frequently Asked Questions

What is the Honda Grom’s engine size and horsepower?

The Honda Grom features a 125cc single-cylinder engine that produces 9.7 horsepower and 8.0 lb-ft of torque. This compact engine contributes to the bike’s impressive agility and speed potential.

How fast can a Honda Grom go?

Under optimal conditions, the Honda Grom can reach speeds of around 60 mph. However, various factors like rider weight and bike modifications can influence performance.

What modifications enhance Honda Grom’s speed?

To enhance speed, riders can modify the Grom with an improved air filter, performance ECU, larger carburetor, and a big bore kit. These changes help increase horsepower and overall performance.

Why are weight reduction techniques useful for the Grom?

Weight reduction techniques improve the Honda Grom’s speed and agility by minimizing excess weight. This can involve removing unnecessary components or investing in lightweight accessories.

How can riding techniques improve performance on a Grom?

Mastering techniques such as throttle control, body position, and smooth input can significantly boost the Grom’s speed and overall riding experience, making it more enjoyable and efficient.