Renthal Front Sprocket 289 / 520 [Yamaha] size:14 Tooth Other Specifications:

Other Specifications:

built to meet and exceed OEM specifications and as an OEM replacement

Metal geared outer hinge for precise movement and durability

If used normally

Reinforced ankle

Renthal Front Sprocket 289 / 520 [Yamaha] size:14 Tooth Other Specifications:Renthal sprockets are simply the finest sprockets on the market today. Their sprocket features a specially developed nickel chrome molybdenum steel which is case hardened and core refined to give the ultimate combination of strength and hardness. Grooved sprockets have cut outs at the bottom of the tooth to allow the escape of mud that would otherwise be trapped between the chainwheel and the chain. Allowing the easy escape of the mud prevents tension