✔ Made of cast aluminum - Light

which guarantees maximum safety and comfort during long runs

• Tåbox: Reinforced

It has domino type "multicuspide" Surface Finish with differentiated diameter on all the cylindrical area and closed end

or a 13 or 14mm wrench

MOTO-MASTER REAR SPROCKET 520 50T 620121150 yamaha-yz-250-f--cg27--250-2009-esi1424250 ✔ Made of cast aluminumTop Grade Hardered Steel, Will Outlast An Aluminum Sprock Up To 3 Times, Special Coating for Extra Durability, Race Sample Design Offers Optimal Strength To Weight Ratio, Cad Designed and Laser Cut Using State of the Art Technology, Engineered and Manufacturald Please check the part's description and specifications for the individual details