Renthal Front Sprocket 289 / 520 [Yamaha] Year_2023 51400-HN2-B41

51400-HN2-B41

Eyelet internal diameter: 25

Bearing shafts manufactured with 52100 bearing steel that is hardened & centreless ground for a precision fit & extended wear

Fits in most factory horn locations

Renthal Front Sprocket 289 / 520 [Yamaha] Year_2023 51400-HN2-B41Renthal 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