So, you're looking to transform your Ninja 400 into a track weapon or just want to spice it up for some serious sportbike action? Awesome! The Ninja 400 is a fantastic platform, known for its nimble handling, lightweight feel, and surprising punch. But to really unlock its potential on the track or the street, you'll need the right gear and upgrades. Let's dive into everything you need to know to get your Ninja 400 track-ready and looking sharp.

Essential Track Gear for Your Ninja 400

When hitting the track, safety and performance are paramount. Track gear isn't just about looking cool (though that's a bonus!); it's about protecting you in case things go sideways and enhancing your control and feel for the bike. Let's break down the must-have items:

1. Full Racing Suit

A full racing suit is non-negotiable. This is your primary defense against abrasion and impact in a crash. Look for a suit made from high-quality leather (1.2-1.4mm thick is ideal) with reinforced stitching and armor in key areas like the shoulders, elbows, knees, and back. Many suits also include aerodynamic humps for improved airflow at high speeds.

Fit is crucial. A suit that's too loose will flap around at speed and won't keep the armor in place during a crash. Too tight, and you'll be uncomfortable and restricted in your movements. Try on several suits with your other gear (see below) to ensure a snug but comfortable fit. Brands like Alpinestars, Dainese, REV'IT!, and Spidi are popular choices, known for their quality and protection.

Consider features like perforation for ventilation (especially if you ride in hot climates) and replaceable armor. Some suits also offer the option to integrate a hydration system, which can be a lifesaver during long track sessions. Finally, make sure the suit meets safety certifications like CE Level 1 or Level 2.

2. Racing Boots

Your feet and ankles are vulnerable in a crash, so investing in a good pair of racing boots is essential. Look for boots that offer ankle support, toe sliders, and shin protection. Many racing boots also feature reinforced heels and soles to prevent twisting injuries.

Again, fit is critical. The boots should be snug but comfortable, allowing you to move your feet freely on the pegs without any slop. Make sure the boots are compatible with your suit – the legs of your suit should fit over the top of the boots. Popular brands for racing boots include Alpinestars, Dainese, Sidi, and TCX.

Consider features like replaceable toe sliders (which will wear down over time), adjustable closures for a secure fit, and ventilation for comfort. Some boots also offer internal bracing systems to further protect your ankles.

3. Racing Gloves

Your hands are often the first point of contact in a crash, so racing gloves are a must. Look for gloves made from leather with reinforced palms, knuckle protection, and finger protection. Gauntlet-style gloves that extend over the wrist offer the best protection.

The gloves should fit snugly, allowing you to feel the controls without any looseness. The seams should be well-stitched and reinforced to prevent tearing in a crash. Popular brands for racing gloves include Alpinestars, Dainese, REV'IT!, and Held.

Consider features like pre-curved fingers for comfort, ventilation for airflow, and touchscreen compatibility so you can use your phone without removing your gloves. Some gloves also offer wrist closures to keep them securely in place.

4. Helmet

A helmet is the most crucial piece of safety gear. Choose a full-face helmet that meets or exceeds DOT and ECE safety standards. Look for a helmet with a comfortable fit, good ventilation, and a clear, scratch-resistant visor. Brands like Arai, Shoei, AGV, and Bell are known for their quality and safety.

The helmet should fit snugly around your head without any pressure points. It shouldn't move around when you shake your head. Replace your helmet every 3-5 years, or immediately after any impact. Consider features like emergency quick-release cheek pads, integrated sun visors, and compatibility with communication systems.

5. Back Protector

While many racing suits come with a back protector, it's often a good idea to upgrade to a standalone unit for better protection. Look for a back protector that covers your entire spine and offers CE Level 2 protection. Standalone back protectors come in various styles, including strap-on vests and inserts that fit into your suit.

The back protector should fit snugly and comfortably without restricting your movement. Consider features like adjustable straps and breathable materials for comfort.

Ninja 400 Performance Upgrades

Okay, now that we've covered the essential safety gear, let's talk about upgrades that will make your Ninja 400 faster and more fun on the track. These modifications can significantly improve handling, power delivery, and overall performance.

1. Suspension Upgrades

The stock Ninja 400 suspension is adequate for street riding, but it's often the first thing to upgrade for track use. Upgrading the suspension will improve handling, stability, and cornering performance. Options include:

• Fork Cartridge Kit: A fork cartridge kit replaces the stock internals with adjustable cartridges, allowing you to fine-tune the damping and spring rate to your weight and riding style. Brands like Öhlins, K-Tech, and Andreani offer excellent cartridge kits for the Ninja 400.
• Rear Shock: Replacing the rear shock with an aftermarket unit will also significantly improve handling. Look for a shock with adjustable preload, compression, and rebound damping. Öhlins, K-Tech, and Nitron are popular choices.
• Suspension Setup: Once you've upgraded your suspension, it's crucial to have it properly set up by a professional suspension tuner. They can adjust the settings to optimize the handling for your weight, riding style, and the specific track you're riding.

2. Brake Upgrades

Improving your braking performance is another essential upgrade for track use. The stock brakes on the Ninja 400 are decent, but they can fade under heavy use. Consider these upgrades:

• Brake Pads: Upgrading to high-performance brake pads will improve stopping power and reduce brake fade. Brands like EBC, Brembo, and Vesrah offer excellent track-day brake pads for the Ninja 400.
• Brake Lines: Replacing the stock rubber brake lines with stainless steel lines will improve brake feel and reduce brake fade. Stainless steel lines don't expand under pressure like rubber lines, resulting in a more consistent and responsive brake feel.
• Master Cylinder: Upgrading to a radial master cylinder can further improve brake feel and modulation. A radial master cylinder provides a more direct and consistent feel at the lever.

3. Exhaust System

Upgrading to an aftermarket exhaust system can improve power and reduce weight. A full exhaust system (header and silencer) will generally offer the most significant performance gains, but a slip-on silencer can also provide a noticeable improvement. Brands like Akrapovič, Yoshimura, and Two Brothers Racing offer exhaust systems for the Ninja 400.

When choosing an exhaust system, consider the sound level. Many tracks have noise restrictions, so make sure the exhaust system you choose meets those requirements. You may also need to remap the ECU to optimize the engine performance with the new exhaust system.

4. Rearsets

Rearsets replace the stock footpegs and controls, allowing you to adjust the position of your feet for a more aggressive riding posture. This can improve cornering clearance and provide better control on the track. Look for rearsets that are adjustable for height and position. Brands like Woodcraft, Vortex, and Gilles Tooling offer rearsets for the Ninja 400.

When installing rearsets, make sure to adjust the position of the shift lever and brake pedal to suit your preferences. You may also need to adjust the length of the shift linkage rod.

5. ECU Tuning

Tuning the ECU (Engine Control Unit) can unlock hidden power and improve throttle response. A dyno tune is the best way to optimize the ECU settings for your specific modifications and riding conditions. You can also use a piggyback ECU tuner like a Dynojet Power Commander or a Bazzaz Z-Fi to adjust the fuel and ignition maps.

ECU tuning can improve power throughout the rev range, smooth out the throttle response, and increase the rev limiter. It's essential to have the tuning done by a qualified professional to avoid damaging your engine.

Sportbike Upgrades for the Street

Maybe you're not planning on hitting the track, but you still want to give your Ninja 400 a sportbike makeover. Here are some popular upgrades for street riding:

1. Windscreen

A double-bubble windscreen can improve aerodynamics and reduce wind buffeting at higher speeds. This can make long rides more comfortable. Brands like Puig, Zero Gravity, and MRA offer windscreens for the Ninja 400.

2. Fender Eliminator

A fender eliminator kit replaces the bulky stock rear fender with a sleeker, more minimalist design. This can give your Ninja 400 a more aggressive and sporty look. Many fender eliminator kits also include LED license plate lights.

3. Frame Sliders

Frame sliders are designed to protect your bike's frame and engine in a crash. They're relatively inexpensive and easy to install, making them a worthwhile investment for street riders. Look for frame sliders made from durable materials like Delrin or aluminum.

4. LED Lighting

Upgrading to LED lighting can improve visibility and give your Ninja 400 a more modern look. LED headlights, taillights, and turn signals are brighter and more energy-efficient than the stock halogen bulbs.

5. Seat Upgrade

The stock seat on the Ninja 400 can be uncomfortable for long rides. Upgrading to a more comfortable seat can make a big difference. Brands like Corbin and Saddlemen offer aftermarket seats for the Ninja 400 with improved cushioning and support.

Conclusion

Transforming your Ninja 400 into a track weapon or a street-ready sportbike is an exciting project. By investing in the right gear and upgrades, you can unlock the full potential of this capable machine. Remember to prioritize safety, choose quality components, and have any major modifications performed by a qualified professional. Now get out there and enjoy the ride! Whether you're carving up corners on the track or cruising the streets, your upgraded Ninja 400 will be sure to turn heads and provide you with years of riding enjoyment.