SUNSTAR SPROCKETS Rear Sprocket 520 49T Ergal Bk

Produktbeschreibung

Kettenrad 520 49T ERGAL BK 5-3619-49BKSUNSTAR ERGAL ALUMINUM REAR SPROCKETS Constructed of high quality, aerospace grade 7075-T6 aluminum – extremely lightweight. Utilizes exclusive tooth-valley design which provides 24% more chain contact area for the best power transfer possible. More hard anodized coating than any other aluminum sprocket on the street market for added durability and a superb finish – increases life span by about 15% in comparison to other brands. Computer designed weight reduction holes for extra weight reduction.