Checkpoint ALR 4 is a versatile aluminum gravel bike built for riders who want to wander a little farther from the beaten path. Its modern endurance geometry and carbon fork help smooth rough roads, while clearance for up to 50mm tires adds confidence and grip on loose terrain. An 11-speed Shimano CUES drivetrain, hydraulic disc brakes, and plenty of mounts for bags and gear make it ready for big rides and everyday adventures alike.

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

A better way to produce aluminum

Starting in 2024, we began removing high-emission aluminum from our manufacturing and replacing it with low-emission aluminum 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.

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
Tire	Bontrager Girona Pro, Tubeless Ready, GR puncture protection, aramid bead, 60 tpi, 700x42mm
Tire Part	Bontrager TLR sealant, 6oz
Hub Front	Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle
Hub Rear	Bontrager alloy, sealed bearing, centerlock disc, Shimano 11-speed freehub, 142x12mm thru axle
Rim	Bontrager Paradigm 23, Tubeless Ready, 24-hole, 23mm width, Presta valve
Spokes	14g stainless steel, black
Skewer Front	Bontrager Switch chamfered thru axle
Skewer Rear	Bontrager Switch chamfered thru axle, removable lever
Shifter	Shimano CUES U6030, 11 speed
Rear Derailleur	Shimano CUES U8000 GS
Crank	Shimano CUES FCU60301, 40T ring, 165mm length
Bottom Bracket	Praxis, T47 threaded, internal bearing
Cassette	Shimano CUES LG700, LINKGLIDE, 11-50, 11 speed
Chain	Shimano LG500, 9/10/11 speed
Brake	Shimano CUES hydraulic disc, flat mount // Shimano CUES U6030
Brake Rotor	Shimano RT54, centerlock, 160mm
Saddle	Verse Short Comp, steel rails, 145mm width
Seatpost	Bontrager alloy, 27.2mm, 12mm offset, 330mm length
Handlebar	Bontrager Elite Gravel, alloy, 40cm width
Stem	Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length

Geometry Chart

B B Drop	7.8
Chainstay Length	43.5
Eff Top Tube	53.6
Frame Reach	38
Frame Size Letter	XS
Frame Stack	54.5
Head Angle	71.2°
Head Tube Length	9.6
Offset	4.9
Seat Tube	44.5
Seat Tube Angle	74.1°
Standover	73.5
Trail	7.4
Wheelbase	102.5
Wheel Size	700c