The Trek Domane ALR 4 disc shows off a top quality Alpha aluminium frame built with the very reliable Shimano Tiagra 10-speed groupset. The Domane features hydraulic disc brakes that show a glimpse of the future into what all bikes are soon to feature with 12mm thru-axles and an IsoSpeed decoupler. IsoSpeed technology was innovated by Trek to bring efficiency through maximum strength and minimal weight whilst ensuring handling is as good as it has always been.
A lightweight aluminium frame with rear IsoSpeed and 12 mm thru axles, carbon IsoSpeed fork, 10-speed Shimano Tiagra groupset, a wide-range 11-32 cassette that's great for climbing, hidden mudguard mounts, flat-mount hydraulic disc brakes for all-weather stopping power and wide 700x32 tyres for added stability and traction.
Hydraulic Disc Brakes
Fast, efficient and stable, with hydraulic disc brakes for more control. Domane ALR 4 Disc gives you the speed of a road bike built in our race heritage, plus the confidence and all-weather stopping power of disc brakes and the comfort of a rear IsoSpeed decoupler.