Checkpoint ALR F/S ML Bronze Age

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