2013 - 2014 BMW HP4

Lightweight rear sprocket - 39 teeth, 525 pitch | SUNSTAR SPROCKETS

Product description

Constructed of high-quality, aerospace-grade 7075 T-6 aluminum
Computer-designed weight-reduction holes for lightness
Exclusive tooth-valley design provides 24% better chain contact area for the best power transfer possible
Hard-anodized coating for added durability and a superb finish