Race Face Turbine Crankset In great condition with some wear on original chainrings and scratches. Bottom bracket spins smoothly. 10 speed (but will work with 8-12) 170mm crank arm length X-Type bottom bracket for BSA 68-73 shells and spacers to accommodate 24mm steel spindle 38 + 28 tooth chainrings are mounted Comes with 4 new chainrings: 38, 38, 26, 26