• SLX FC-M7120 -1x12 • Crank length: 165mm • Chainring options: 30, 32 and 34T • 55mm Chainline • Q Factor 178mm • HOLLOWTECH II Crank Technology • Dynamic Chain Engagement • Direct mount chainring system • Compatible with XTR and Deore XT rings In The Box • 2 x Crank Arms • Intergrated Bottom Bracket Axle • 1 x Locking Ring