RD350 YPVS F1 Boyesen Dual Stage Reed Valves RZ350NC21985 This steel and rubber bonded

This steel and rubber bonded damper fits into the crankcase at the rear of the engine to insulate it from the frame

RD400C 1976

FZ750 1985-1991

FZR750R OW01 1989

These top quality inlet rubber heat shields have been specially manufactured for Yambits

RD350 YPVS F1 Boyesen Dual Stage Reed Valves RZ350NC21985 This steel and rubber bondedBoyesen's patented dual stage design incorporates a specially shaped top reed and a ported bottom reed. The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs. The stiffer, bottom reed is ported to provide maximum flow and horsepower at higher RPMs. The Benefits: Quicker acceleration for that all important holeshot Crisper throttle response for fast corner exits and surer jumps More horsepower throughout