Checkpoint ALR Frameset is the perfect starting point for your dream aluminum gravel bike. Its 300 Series Alpha Aluminum frame features Gravel Endurance geometry to keep you comfortable through long miles, and a full carbon fork keeps things lightweight. Build it up as a bikepacking rig or spec it for your ultimate alloy gravel race bike, the world is your oyster.
![]()
![]()
![]()
![]()
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, fenders, and Adventure Top Tube, Frame, and Triangle Bags. Plus, the new frame was optimized 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 tire clearance
Designed with 50mm (or 29 x 2.0)* tire 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
| Frame | 300 Series Alpha Aluminum, Internal cable routing, 3S chain keeper, T47, UDH, rack and fender mounts, integrated frame bag mounts, flat mount disc, 142x12mm chamfered thru axle |
| Fork | Trek Checkpoint, full carbon, tapered steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle |
| Skewer Front | Bontrager Switch chamfered thru axle |
| Skewer Rear | Bontrager Switch chamfered thru axle, removable lever |
Geometry Chart
| B B Drop | 7.6 |
| Chainstay Length | 43.5 |
| Eff Top Tube | 58 |
| Frame Reach | 39.7 |
| Frame Size Letter | ML |
| Frame Stack | 61.1 |
| Head Angle | 72.2° |
| Head Tube Length | 16.2 |
| Offset | 4.9 |
| Seat Tube | 56 |
| Seat Tube Angle | 72.8° |
| Standover | 80.9 |
| Trail | 6.7 |
| Wheelbase | 104.8 |
| Wheel Size | 700c |
