RK GS428HSB-136 Gold Heavy Duty Chain Make_BKool This is down to the

This is down to the precision machined CNC brackets

Yamaha: FZR 400RR

plus 50mm extra height

YFM 700 Grizzly 4x4 EPS SE

Crafted from CNC machined aircraft-grade billet aluminium

RK GS428HSB-136 Gold Heavy Duty Chain Make_BKool This is down to theRK 428HSB gold heavy duty non sealed drive chainA reliable non sealed affordable chain for heavy duty usage, with improved strength over our standard chain. Manufactured from carbon alloy steel, which is heat treated and shot peened for maximum strength and durability. Cold forged seamless bushings for longer chain life. All RK chains are pre stressed and pre stretched for superior performance and to minimize elongation during the life of the chain.