Trek Checkpoint SL 6 2026 Gravel Bike

The Checkpoint SL 6 AXS Gen 3 is a carbon gravel bike ready for far-out adventures. Its lightweight carbon frame is designed with comfort-focused Gravel Endurance geometry, clearance for beefy 50 mm tyres (as measured), and plenty of frame and fork mounts. Plus, IsoSpeed frame technology helps soak up jarring road vibrations, so you can you float over chatter and potholes. It's ready to cut loose with a SRAM Rival AXS E1 wireless 13-speed group set.

A 500 Series OCLV Carbon frame with a carbon fork, internal downtube storage, frame and fork mounts, and clearance for 50 mm tyres (as measured). A 13-speed 1x SRAM Rival AXS E1 fully wireless drivetrain, hydraulic disc brakes, carbon seat post and Tubeless Ready Bontrager Paradigm Comp wheels with 42 mm tyres.

Key Features

• The Checkpoint's Gravel Endurance geometry lets you sit higher up and features a shorter reach to keep you comfortable on all-day gravel adventures, light singletrack, bike-packing trips and more


• Road-smoothing IsoSpeed comfort tech soaks up vibration from rough surfaces to keep you feeling fresher for longer


• You get crisp and clean shifts from the upgraded SRAM Rival AXS E1 wireless electronic 13-speed drivetrain


• You can haul it all with large internal frame storage and mounts galore on the frame and fork for hydration, front and rear racks, mudguards and Adventure Bags that were designed to perfectly fit the Checkpoint

Specifications

Frameset

• Frame: 500 Series OCLV Carbon, IsoSpeed, downtube storage door, hidden mudguard mounts, rack mounts, integrated frame bag mounts, RCS Headset System, invisible cable routing, T47, flat-mount disc, integrated chainkeeper, removable FD hanger, UDH, 142x12 mm chamfered thru axle


• Fork: 40 mm (XS: compatible with rigid fork only)
  See Checkpoint SL Gen 3 FAQ for compatible options

Wheels

• Rims: Bontrager TLR


• Tyres: Bontrager Girona Pro, Tubeless Ready, GR puncture protection, aramid bead, 60 tpi, 700x42 mm

Drivetrain

• Shifters:


• Rear Derailleur: SRAM Rival XPLR AXS, 46T max cog


• Cassette: SRAM Rival XPLR XG-1351, 10-46, 13-speed


• Bottom Bracket: Bontrager Elite Gravel, alloy, 42 cm width

Components

• Handlebar: Bontrager Elite Gravel, alloy, 42 cm width


• Stem: Bontrager Pro, 31.8 mm, Blendr-compatible, 7-degree


• Saddle: Verse Short Comp, steel rails, 145 mm width


• Seatpost: Bontrager carbon, 27.2 mm, 8 mm offset, 330 mm length

E-System

• Motor: Max brake rotor sizes: 180 mm front and rear


• Battery: SRAM eTap battery pack (with charger)

Trek Marlin Sizing

Product code: 910575