Product details: ALDHU 3D+ Crank compatible axle *Crank arm and spider ring sold separately; Q-Factor: For RIM/ 6.0 inches (148 mm) (FOR DISC); Chainline: 1.7 inches (43.5 mm) (FOR RIM)/1.8 inches (46 mm) (FOR DISC); Compatible BB: BSA30/ITA30/ITA30/PRESS 46. 30 / U BB4630 / BB386 / PRESS FIT 4130(BB86)