RK 254 Steel Rear Sprocket #520 Category_Piston Needle Bearings the more protection you need

the more protection you need

Adjustable frame rails for wide wheels up to 12 1/2" wide

Trimmable to 109mm

RK chain and sprocket kits are the perfect drive maintenance kit for your bike

this kit includes the below for your KTM 450 SX-F 13-15:

RK 254 Steel Rear Sprocket #520 Category_Piston Needle Bearings the more protection you needRK Takasago Sprockets Now Available to the Public Race Teams the world over have had the luxury for years of getting the royal treatment when it comes to quality RK racing chains. Now finally after years of racing success, RK sprockets are available to the general public in New Zealand and the world. Rigourously tested by top international racers on tracks and circuits, RK bring their superior quality and manufacturing controls to every individual