2025 Trek Checkpoint ALR 4 Gen 3 – Gravel Bike
Specifications
| Specification | Details | 
| Model | Checkpoint ALR 4 Gen 3 | 
| Vehicle Category | Gravel Bike | 
| Application | Gravel riding, bikepacking, daily commuting | 
| Starting Price (2025) | $1,899.99 USD | 
| Color Options | Matte Keswick Green to Lichen Fade, Living Coral | 
| Sizes | XS, S, M, ML, L, XL | 
Frame & Drivetrain
| Specification | Details | 
| 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 | Full carbon, tapered steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle, Trek Checkpoint | 
| Drivetrain Compatibility | Shimano CUES U8000, 11-speed | 
| Dropouts | 142x12mm thru axle (R), 12x100mm thru axle (F) | 
| Crank | Shimano CUES FC-U6030-1, 40T, 9/10/11 speed, 165mm (XS, S), 170mm (M, ML), 172.5mm (L, XL) | 
| Chain | Shimano LG500, 9/10/11 speed | 
| Rear Derailleur | Shimano CUES U8000 GS | 
| Shifters | Shimano CUES U6030, 11-speed | 
| Cassette | Shimano CUES LG700, LINKGLIDE, 11-50, 11-speed | 
Components & Features
| Specification | Details | 
| Seating | Verse Short Comp, steel rails, 145mm width | 
| Cargo Capacity | Rack & fender mounts, integrated frame bag mounts | 
| Wheels/Tyres | Bontrager Girona Pro, tubeless ready, GR puncture protection, aramid bead, 60 tpi, 700x42mm | 
| Wheel Size | 700c | 
| Brakes | Shimano CUES Hydraulic Disc, flat mount, resin pad w/o fin, SM-BH59 hose, BR-RS405, 160mm rotors (Shimano RT54, centerlock) | 
| Brake Levers | Shimano CUES BL-U6030 | 
| Handlebar | Bontrager GR Elite IsoZone Gravel, alloy, 40cm (XS, S), 42cm (M, ML), 44cm (L), 46cm (XL) | 
| Stem | Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 70mm (XS), 80mm (S, M), 90mm (ML, L), 100mm (XL) | 
| Saddle | Verse Short Comp, steel rails, 145mm width | 
| Seatpost | Bontrager alloy, 27.2mm, 12mm offset, 330mm length | 
| Front Hub | Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle | 
| Rear Hub | Bontrager alloy, sealed bearing, centerlock disc, Shimano 11-speed freehub, 142x12mm thru axle | 
| Rims | Bontrager Paradigm 23, 24-hole, 23mm width, Presta valve | 
| Spokes | 14g stainless steel, black | 
| Exterior Features | Rack & fender mounts, integrated frame bag mounts, tubeless ready wheels | 
| Weight | 10.40 kg / 22.93 lbs (size ML, with TLR sealant, no tubes) | 

