Home » Cranksets » Direct Mount » tt1 DIRECT MOUNT CRANKSETS TT1 Cranks: Forged AL6066 Length: 165mm, 170mm, 172.5mm, 175mm Chainrings: 32T, 34T Direct Mount Spindle: Cr-Mo SCM440 Chainline: 49.25 | 50.25 | 52.25 | 55.25mm Technical Diagram Check Out the Video