The Checkpoint ALR 4 is an aluminium gravel bike perfect for dipping your toes into the roads less travelled. Its modern endurance geometry keeps you comfortable over gravel roads and potholes, and 50 mm tyre clearance gives you room for extra grip. It comes equipped with a carbon fork, Bontrager Paradigm wheels, 11-speed Shimano CUES 8000 shifting, hydraulic disc brakes and loads of mounts for bags and gear.
Mounts galore
The new Checkpoint ALR is equipped to carry everything you need with mounts on the frame and fork for front and rear racks, mudguards and Adventure Top Tube, Frame and Triangle Bags. Plus, the new frame has been optimised to fit extra hydration in addition to all your bags.
Gravel Endurance geometry
Designed with Gravel Endurance geometry with a higher stack and shorter reach for improved comfort and control on long days in the saddle.
Big ‘ol tyre clearance
Designed with 50 mm (or 29 x 2.0)* tyre clearance for more grip and comfort on challenging terrain.*As measured
Suspension fork and dropper post compatible
Compatible with a suspension fork* and dropper post for riders tackling technical descents or seeking more aggressive off-road performance. *Available on all sizes except XS frames
A better way to produce aluminium
Starting in 2024, we began removing high-emission aluminium from our manufacturing and replacing it with low-emission aluminium made with renewable energy. By October 2025, nearly every alloy bike we make – this one included – had made the switch, driving a major drop in our footprint.

















When Trek began in 1976, their mission was simple: Build the best Trek bikes in the world. Today, they have added to their mission: Help the world use the bicycle as a simple solution to complex problems. Trek. We believe in bikes.
Trek Bicycle Corp is a bicycle and cycling product manufacturer and distributor under brand names Trek, Electra Bicycle Company, Gary Fisher, Bontrager, Diamant Bikes, Villiger Bikes and, until 2008, LeMond Racing Cycles and Klein. With its headquarters in Waterloo, Wisconsin, Trek bicycles are marketed through 1,700 dealers across North America, subsidiaries in Europe and Asia as well as distributors in 90 countries worldwide.
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