DPY57.5 | Clutch Weights -Yamaha – 57.5

DPY Clutch Weights. These are a more aggressive curvature flyweight than 4 stroke models from the factory. These ones have a curvature more similar to the 8DN-20 type curvature, and can be used for tuning either 2 or 4 stroke models. This more aggressive curvature is often used at much less Grams than the factory (flatter) curvature — a favourite for quick revving drag applications.

DPYR Clutch Weights. These use a curvature that is slightly less aggressive than our DPY flyweights. This new curvature allows more “untucked mass at the point of belt contact and allows for the use of more total flyweight mass than many aggressive flyweights. These four stroke oriented flyweights can offer quicker acceleration while still maintaining excellent low speed belt grip. Uses factoryYamaha mass rivets for Adjustable tuning. Typical applications use 58 to 62 g base weights on RX/Apex applications, while many Turbocharged tuners use the 70 and 74 g base weights in configurations up to 83 g total mass. Note: These weights still use a more aggressive curvature than factory RX weights. As many tuners know, the total mass required of a flyweight is dependant on the curvature and the location of mass, and comparing Grams to other weights is irrelevant sometimes.