rear sprocket trasmission WRP ergal Yamaha YZ 400 F 99

WRP crowns are produced by Supersprox in Europe, following stringent construction specifications.

All ergal crowns for off-road use are built in aeronautical aluminum 7075T6 (Ergal), lightened with triangular holes and unloaded on the bottom of the tooth to guarantee a perfect sludge discharge and guarantee a better durability.

The crowns are supplied black anodized to guarantee a greater surface hardness, a better resistance to corrosion and an aesthetic finish of maximum impact.