4-STOKE PERFOMANCE PARTS
National Kit Warrior
Suz-Kaw 400 435cc Kit
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Honda 400EX 440 National Kit
SUZ-KAW 400 470cc Kit
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Honda 300EX Engine Kit
 
 
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CAMSHAFTS
HEAVY DUTY VALVE SPRINGS
DR offers megacycle camshafts, long the leader in camshaft technology. DR carries a wide variety of cam grinds to cover your various riding needs. Camshafts are avaiable in hardfaced or billets. Options for Honda, 400EX, 250X/300EX; Yamaha Warrior, Wolverine. Due to the increased lift on most high performance cams, hi-performance valve springs are required. R&D Valve Spring Kits feature stronger, coarser-wound springs, along with chromaly or titanium retainers(decreasing weight for enhanced performance and keepers). Available for Honda TRX 250X/300EX/400EX; Suzuki 230/250 Quadsport; Yamaha Warrior
   
HI-PERFORMANCE PISTON KITS
CARURETOR KITS
DR offers forged piston kits. All pistons are offered in higher compression than stock for improved power and torque. Piston kits include, piston, rings, pin & clips. Available for: Honda TRX 250X/300EX/400EX; Auzuki Quadsport, Yamaha Warrior. Carburetor kits come prejetted with all neccessary hardware to mount kit. Kits are avaiable with twist throttle cable. Available for: Honda TRX 250X/300EX; Yamaha Warrior

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