Sram Force 1 X-SYNC BB30 Crankset 50Tx175 CarbonThe Sram Force 1 X-SYNC BB30 Crankset simplifies the expression of shifting with a wide range of resistances without sacrificing power or precision. The X-SYNC design consists of a wide/narrow tooth alternation which increases the control of the chain significantly. The unidirectional carbon crankarm paired with the forged alloy spider produces a lightweight, yet durable base to explore the trails or seriously compete in cyclecross races. Solid 50 tooth chainring. BB30 Spindle. Weighs less than 750 grams! Available in 170, 172.5, and 175mm crankarm lengths. Does not include Bottom Bracket Cups.710845770517