About the Trek Domane AL 3 DiscDomane AL 3 Disc is a smooth, stable and super fun road bike. It's a blast on everything from longer loops to group rides and even light gravel trails. The lightweight and comfortable frame features a road-smoothing carbon fork, quality parts and a wide range of gears ready for bigger adventures.Key Features DuoTrap S compatibility makes it easy to wirelessly track your rides, so you can set goals and watch yourself reach them The unique IsoSpeed Carbon fork, which swoops forward toward the dropouts, absorbs vibrations from the road so your arms won't fatigue as quickly The Shimano Sora drive train has 18 speeds, with integrated brake/shift levers. It's a lighter parts group than Shimano's introductory group set, and provides a wide range of gears that's great for climbing.SpecificationsFramesetFrame: 100 Series Alpha Aluminium, tapered head tube, internal routing, mudguard mounts, DuoTrap S-compatible, flat-mount disc, 142x12 mm thru axleFork: Domane AL carbon, tapered alloy steerer 12x100mm thru axleWheels Rims: Bontrager Affinity Disc, 24-holeHubs: (F) Formula RX-512 alloy, 6-bolt, 100x12 mm thru axle (R) Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12 mm thru axle Tyres: Bontrager R1 Hard-Case Lite, 700x32cDrivetrainPedals: Not includedFront Derailleur: Shimano Sora R3000, 31.8 mmRear Derailleur: Shimano Sora R3000, mid cageShifters: Shimano Sora R3000, 9-speedChain: Shimano Sora HG53, 9-speedCrankset: Shimano Sora R3000, 50/34Rear Cogs: Shimano Sora HG400, 11-32, 9-speedComponentsHandlebar: Bontrager Comp VR-S, alloy, 31.8 mmStem: Bontrager Elite, 31.8 mm, Blendr-compatibleBrakes: Tektro C550 mechanical disc brakeBrake Levers: Integrated in shiftersSaddle: Bontrager P3 Verse CompSeatpost: Bontrager Comp, 6061 alloy, 27.2 mmTrek Domane AL Sizing44495254565861Rider Height150-153cm156-162cm163-168cm168-174cm174-180cm180-185cm185-191cm