Checkpoint ALR 5 is an aluminum gravel bike built for venturing anywhere. It pairs modern endurance geometry with a carbon fork for road-smoothing comfort, while 50mm of tire clearance gives you room for tons of grip. It comes equipped with SRAM Apex XPLR 12-speed shifting, hydraulic disc brakes, Tubeless Ready Bontrager Paradigm wheels, and tons of mounts for bags and gear. 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 50mm tires Its spec'd with 12-speed SRAM Apex XPRL shifting that's extra durable and provides plenty of gears for steep climbs and long grinds alike Tons of mounts on the frame and fork give you places to load up for epic bikepacking adventures or commuting around town Mounts galoreThe 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 geometryDesigned 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 clearanceDesigned with 50mm (or 29 x 2.0)* tire clearance for more grip and comfort on challenging terrain.*As measuredSuspension fork and dropper post compatibleCompatible 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 framesA better way to produce aluminumStarting 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 SRAM Apex, 12 speed Rear Derailleur SRAM Apex XPLR, 44T max cog Crank SRAM Apex 1, 40T, DUB Wide, 170mm length Bottom Bracket SRAM DUB Wide, T47 threaded, internal bearing Cassette SRAM XPLR PG-1231, 11-44, 12 speed Chain SRAM Apex, 12 speed Brake SRAM Apex D1 hydraulic disc, flat mount // SRAM Apex D1 hydraulic disc, flat mount Brake Lever SRAM Apex, 12 speed Brake Rotor SRAM Paceline, rounded, centerlock, 160mm Saddle Verse Short Comp, steel rails, 145mm width Seatpost Bontrager alloy, 27.2mm, 12mm offset, 330mm length Handlebar Bontrager Elite Gravel, alloy, 42cm width Stem Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length Geometry Chart B B Drop 7.6 Chainstay Length 43.5 Eff Top Tube 56.8 Frame Reach 39.1 Frame Size Letter M Frame Stack 58.9 Head Angle 71.8° Head Tube Length 14 Offset 4.9 Seat Tube 54 Seat Tube Angle 73.2° Standover 78.9 Trail 7 Wheelbase 104.1 Wheel Size 700c
