The Trek 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 to soak up jarring road vibrations, helping you float over chatter and potholes. It's ready to cut loose with a SRAM Rival AXS wireless 12-speed group set.

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 wireless electronic 12-speed drivetrain
Clearance for 50 mm tyres (as measured) means that you can add extra traction and cushion for rowdy gravel roads
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
Dropper post and suspension fork compatible (except size XS)

Sunset Cycles offers the 2025 Trek Checkpoint SL 6 AXS (Gen 3) gravel bike in Matte Hex Blue/Marianas Blue finish with up to 48 months 0% finance and free delivery.

The 2025 Trek CHECKPOINT range: Checkpoint ALR 5 (Grey) | Checkpoint SL 5 AXS Gen 3 (Black/Smoke) | Checkpoint SL 6 AXS Gen 3 | Checkpoint SL 7 AXS Gen 3

Full Specification: Trek Checkpoint SL 6 AXS Gen 3 2025 Gravel Bike

Frame & Fork
Frame	500 Series OCLV Carbon, IsoSpeed, downtube storage door, hidden mudguard mounts, rack mounts, integrated frame bag mounts, invisible cable routing, T47, flat-mount disc, integrated chainkeeper, removable FD hanger, UDH, 142x12 mm chamfered thru axle
Fork	Checkpoint full carbon, tapered carbon steerer, fender mounts, triple rack mounts, flat mount disc, 12x100mm chamfered thru axle
Wheels & Tyres
Wheel front	Bontrager Paradigm Comp 25, Tubeless Ready, 25 mm rim width, 100x12 mm thru axle
Wheel rear	Bontrager Paradigm Comp 25, Tubeless Ready, 25mm rim width, SRAM XD-R 12-speed freehub, 142x12 thru axle
Tyre	Bontrager Girona Pro, Tubeless Ready, GR puncture protection, aramid bead, 60 tpi, 700x42 mm
E-system
Battery	SRAM eTap battery pack (with charger)
Drivetrain
Shifter	Size: XS, S, M, ML, L, XL SRAM Rival eTap AXS, 12-speed Size: XS, S, M, ML, L, XL SRAM Rival eTap AXS, 12 speed
Rear derailleur	SRAM Rival XPLR eTap AXS, 44T max cog
Crank	Size: XS, S SRAM Rival, 40T, DUB Wide, 165 mm length Size: M SRAM Rival, 40T, DUB Wide, 170 mm length Size: ML, L SRAM Rival, 40T, DUB Wide, 172.5 mm length Size: XL SRAM Rival, 40T, DUB Wide, 175 mm length
Bottom bracket	SRAM DUB, T47 threaded, internal bearing
Cassette	SRAM XG-1251, 10-44, 12-speed
Components
Saddle	Size: XS, S Verse Short Comp, steel rails, 155 mm width Size: M, ML, L, XL Verse Short Comp, steel rails, 145 mm width
Seatpost	Bontrager carbon, 27.2 mm, 8 mm offset, 330 mm length
Handlebar	Size: XS Bontrager Elite Gravel, alloy, 40 cm width Size: S, M Bontrager Elite Gravel, alloy, 42 cm width Size: ML, L Bontrager Elite Gravel, alloy, 44 cm width Size: XL Bontrager Elite Gravel, alloy, 46 cm width
Handlebar tape	Bontrager Supertack Perf tape
Stem	Size: XS Bontrager Pro, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length Size: S Bontrager Pro, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length Size: M, ML Bontrager Pro, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length Size: L Bontrager Pro, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length Size: XL Bontrager Pro, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length
Brake rotor	SRAM Paceline, rounded, CentreLock, 160 mm
Rotor size	Max brake rotor sizes: 180mm front and rear
Weight
Weight	ML - 9.40 kg / 20.73 lbs (with TLR sealant, no tubes)
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 125 kg (275 lb).

Size Guide: Trek Checkpoint SL 6 AXS Gen 3 2025 Gravel Bike

Frame Size	Rider Height* (metric)	Rider Height* (imperial)
X Small	143 - 158 cm	4'8" - 5'2"
Small	158 - 162 cm	5'2" - 5'4"
Medium	162 - 173 cm	5'4" - 5'8"
Medium/Large	173 - 179 cm	5'8" - 5'10"
Large	179 - 188 cm	5'10" - 6'2"
X Large	188 - 213 cm	6'2" - 7'0"
*This is for guidance only. You may be taller or shorter, it doesn't mean our bikes will not fit you. The best way to determine the correct bike size for you is to try one. Please contact us if you are in any doubt about the correct bike size for you.