Trek Checkpoint ALR 4 Gen 3 Bike (2026)

2026 Trek Checkpoint ALR 4 Gen 3 Green Gravel Bike. Model 5332843

The Checkpoint ALR 4 Gen 3 is an aluminum gravel bike designed for those who want to discover new routes off-road. Its Alpha 300 Series aluminum frame combines strength and lightness, while the modern Endurance Geometry provides a comfortable and stable position on long rides and gravel roads. It features a carbon fork, ample tire clearance for up to 50mm tires, and multiple mounts for luggage and accessories. Equipped with an 11-speed Shimano CUES U8000 drivetrain and hydraulic disc brakes, it offers reliability and control on all types of terrain.

Framework

• Frame: Alpha 300 Series Aluminum, internal cable routing, 3S chain guide, T47, UDH, rack, fender, and frame bag mounts, flat mount disc, 142x12 mm chamfered thru-axle
• Fork: Trek Checkpoint full carbon, tapered steerer tube, rack and fender mounts, flat mount disc, 12x100 mm thru-axle

Weight

• ML Weight: 10.40 kg (with TLR sealant, tubeless)
• Weight limit: Maximum combined weight (bike + rider + cargo): 125 kg

Drivetrain

• Shifter: Shimano CUES U6030, 11-speed
• Rear derailleur: Shimano CUES U8000 GS
• Crankset: Shimano CUES FCU60301, 40T (crank arm length according to size: 165 mm XS/S, 170 mm M/ML, 172.5 mm L/XL)
• Bottom axle: Praxis T47 threaded, internal bearing
• Cassette: Shimano CUES LG700 LINKGLIDE, 11-50, 11-speed
• Chain: Shimano LG500
• Maximum chainring size: 1x: 44 / 2x: 46/30

Wheels

• Rim: Bontrager Paradigm 23, Tubeless Ready, 24 holes, 23 mm internal width
• Hubs: Bontrager aluminum, sealed bearings, centerlock, 12x100 mm (front) and 12x142 mm (rear) thru-axles
• Swivels: Bontrager Switch chamfered thru-axles (rear with lever) removable)
• Spokes: 14g stainless steel, black
• Tires: Bontrager Girona Pro, Tubeless Ready, GR puncture protection, 700x42 mm, 60 tpi
• Sealant: Bontrager TLR, 6oz
• Maximum tire size: 50 mm without fender, 42 mm with fender

Components

• Saddle: Verse Short Comp, steel rails, 145 mm wide
• Seatpost: Bontrager aluminum, 27.2 mm, 12 mm setback, 330 mm length mm
• Handlebar: Bontrager Elite Gravel aluminum (width according to size: 40 cm XS/S, 42 cm M/ML, 44 cm L, 46 cm XL)
• Handlebar tape: Bontrager Supertack Perf
• Stem: Bontrager Elite, 31.8 mm, Blendr compatible, 7°, variable length (70 to 100 mm depending on size)
• Brakes: Shimano CUES U6030, flat mount hydraulic disc brake
• Discs: Shimano RT54, centerlock, 160 mm (max. 180 mm front and rear)