Trek Checkpoint ALR 4 Gen 3

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.

You're looking for a versatile ride that balances performance and price, so you can confidently explore everywhere. You want a bike that keeps handling comfortable and confident, with modern geometry built for the long haul.

A 300 Series Alpha Aluminium frame with a full carbon fork, with clearance for up to 50 mm tyres. 11-speed Shimano CUES U8000 shifting, hydraulic disc brakes, Bontrager Paradigm wheels with Bontrager Girona Pro Tubeless Ready tyres, plus mounts for loading up with bags, racks and gear.

Whether you're heading out on a long adventure or a daily ride, the Checkpoint ALR 4 is your go-to gravel bike. It features a durable, budget-friendly Alpha Aluminium frame, comfortable endurance geometry, wide tyre clearance and mounts for all your gear.
- The Checkpoint ALR features the same updated endurance geometry as its carbon sibling, giving you comfort and control in the rough stuff
- You get road-smoothing comfort from a full carbon fork and clearance for up to 50 mm tyres
- Its spec'd with 11-speed Shimano CUES U8000 shifting that's not only affordable but also incredibly durable and low maintenance
- Lots of mounts on the frame and fork give you places to load up for epic bikepacking adventures or commuting around town
- Lots of mounts on the frame and fork give you places to load up for epic bikepacking adventures or commuting around town

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.