LightCarbon New Gravel Frameset With Integrated Handlebar - Shimano flat mount type disc brake - Max tire clearance 700*53C or 650B*2.1'' or 29er*1.95'' - Full internal cable routing - Front 12*100mm thru axle, rear 12*142mm thru axle - 27.2mm seat post Frame LightCarbon New Gravel Frameset with Integrated Handlebar Material High modulus Toray T700 carbon fiber Size 49, 52, 55, 58(cm) Fork Lightcarbon specify carbon fork, 495g+-15g Handlebar size 400/420/440mm Stem size 90/100/110/120mm Headtube Straight 1 1/2'' head tube(upper 52mm lower 52mm) Weight(+-40g) 990g/49cm 1020g/52cm 1050g/55cm 1100g/58cm Seatpost Option 1: SP02(25mm offset, 193+/-10g). Option 2: SP03(15mm offset, 192+/-10g) Bottom bracket Press-Fit BB86 Max tire clearance 700*53C or 650B*2.1'' or 29er*1.95'' Max Chainring If use single chainring, max 42T (corresponding chainline=49.7mm ). If use double chainring, max 54/42T (chainline=43.5mm)， min 46-30T (chainline=47mm) Brake mount type Shimano flat mount disc brake (disc brake bolts length 38.2mm) Dropout Front 12*100mm TA Rear 12*142mm TA Groupset Mechanical and Di2 compatible (Not compatible with old rear derailleur without B-LINK, eg old 105 5800) Test Standard ISO4210 Warranty 2 years