The sram rival 1 cranksest delivers immense performance across a broad variety of bikes and disciplines. Paved or not. Cyclocross or triathlon. Road racing or unchartered journeys. Rival®1 provides a single-minded proposition to meet each challenge and expand your limits. - speeds: 10/11 - bb compatibility: bb30/pf30-68mm gxp/pf gxp 68mm - chainring size: 42 50 - crank arm length: 170mm 172.5mm 175mm - chainline: 47.5mm - bb spindle interface: 24mm 30mm - chainring material: aluminum - guard: no guard - bolt circle diameter (bcd): 110 bcd - crank arm material: aluminum - color (crank arm): black
