DRZ400

Athena 440cc Big Bore Kit

• Includes aluminum cylinder, piston kit, and special gasket set designed for larger water jackets
• Bolts on with no machining required
• 94mm big bore piston
• Aluminum cylinder designed with wider water jackets for better cooling.
• Forged hi-compression piston
• Includes all necessary Rings, Clips, and Gaskets.

Valve Shim Kit

Includes three valve shims of each size from 1.20 to 3.50 in .05 increments. 141 shims in total. 57 cents per shim!

Magnetic Drain Plug

Extra protection for your motor! Strong magnet at the end of the plug picks up metallic flakes in your oil, protecting your engine!

Edelbrock Performer Pumper Carburetor

• Improve your horsepower and throttle response
• Flat slide with single fuel circuit allows for easy external adjustment; no jets to replace
• Features internal fuel cell and anti-slosh plate in fuel bowl for consistent fuel delivery to the engine
• Easy installation!
• DRZ400E and KLX400R require Suzuki intake p/n 13881-29FB0 and clamp p/n 09402-34203
• DRZ400S and KLX400S require Suzuki intake p/n 13111-29F00 and clamp p/n 09402-58208

Twin Air Filter

Twin Air Filter's patented design, high quality materials and superior construction deliver unbeatable performance and protection - and make Twin Air Filters the hands-down choice of more World and National Champions than all other filters combined.

An air filter is your engine's only protection against the elements, and your stock filter isn't up to the task. Replace it with a Twin Air- the #1 filter system proven on motocross tracks around the world.

Twin Air's fused layers of open-pore foam and fine inner foam trap even the smallest particles-without restricting airflow!

Corbin Seat - Dualsport Riding Comfort

Corbin seats are custom made to order. You can choose your preferred texture for the top and sides of the seat. Please give us a call if you would like other color options or materials.

Corbin seats are carefully designed to provide a comfortable riding position. They are firm and supportive which allows you to ride all day without fatigue unlike the stock seat.

Corbin seats are built to order. Lead time on building a seat is 2-3 weeks.

If you wish to choose different cover material options or colors than what is provided here please give us a call. You can view all of the available materials and colors on Corbin's Website.

Pro-Moto Billet Rack

Like other Pro-Moto Billet products, "Rack-It" cargo racks are a work of art. Not only are they functional, they look good too. Each rack is CNC machined from a 1/2 inch thick plate of 6061 billet aluminum. The rack is then “hard clear” anodized for durability, ease of maintenance, and protection from the elements.

E & ES version fits all 2000-2007 Suzuki DR-Z400E & ES (electric start) off-road models. Will NOT fit DR-Z400S street legal dual sport, or or SM supermoto models. Rack measures 10" x 10".

S & SM version fits all 2000-2008 Suzuki DR-Z400S street legal dual sport & DR-Z400SM supermoto models. Will NOT fit DR-Z400 E or ES off-road models. Rack measures 9" x 11".

Countershaft Sprockets

High quality steel front sprockets from 11 teeth to 16 teeth.

Note: The 16T sprocket will require a small amount of grinding inside the sprocket cover for clearance.

Fork Springs

Race Tech fork springs to dial in your front suspension to suit your weight. Recommended spring rates:

Race Tech Gold Valve - rear shock

The Race Tech Gold Valve allows you to tune both compression and rebound valving for vastly improved performance.

• Bolt-on shock valving for riders serious about suspension performance.
• Improves control, traction, plushness and bottoming resistance.
• Improved, long-wearing, low-friction sealing design decreases fade.
• Includes complete instructions.

Race Tech Fork Cartridge Emulators

Emulators make damping rod forks perform like well-tuned cartridge forks. Emulators are tunable valves that sit inside your forks on top of the damping rods and are held in place by the fork springs. Simple to install and completely tunable for all conditions and rider preferences.

Race Tech Gold Valve - front forks

• Race Tech's original bolt-on fork valving system for front cartridge forks
• Triple the flow area of pistons
• Put valving control on the shim stack
• Outstanding tunability; improved control, traction, plushness and bottoming resistance
• Complete instructions, Gold Valve pistons, valving charts, valving shims and "Technical Edge
• Fork Maintenance and Gold Valve Installation" video all included

ProCycle SUPERMOTO 17" Wheel set for the DRZ400

Complete set of supermoto wheels. We custom build our wheels to fit your bike!

Our supermoto wheels are built on OEM hubs for maximum compatibility with your bike! Stock hubs allow you to use the rotors and sprockets built for your bike instead of expensive and difficult to obtain parts for aftermarket hubs.

Our Supermoto wheels are carefully laced and trued to provide you with a solid, high-quality wheel. We use high quality Excel rims and Buchanan's heavy gauge spokes and heavy-duty nipples. All bearings and seals come pre-installed.

• New OEM factory hubs
• Excel 3.5"x17" front rim, clear-anodized aluminum
• Excel 4.25"x17" rear rim, clear-anodized aluminum
• Buchanan's stainless steel heavy gauge spokes
• Buchanan's heavy-duty zinc-plated nipples

You can upgrade your wheel order to use stronger Sun rims for only $70. Sun rims are available in colors. Upgrading to colored Sun rims adds $145.

All our wheels are custom built to order, please allow 2-3 weeks for delivery.

Supermoto 320mm Brake Rotor Kit from EBC

Full braking power for your DRZ400 supermoto conversion. Floating EBC 320mm brake rotor with gold anodized alloy carrier. Includes caliper relocation bracket.

Quick Throttle Tube

Opens your throttle 15% faster. No more 'double handfuls' to get it wide open. Removable end cap for bikes with hand guards.