The Trek Checkpoint SL 5 AXS Gen 3 is an adventure-ready carbon gravel bike built to roll into the distant horizon. Its lightweight carbon frame is designed with comfort-focused geometry, room for beefy 50 mm tyres (as measured), and plenty of frame and fork mounts. Plus, IsoSpeed comfort technology helps soak up jarring road vibrations, helping you float over chatter and potholes. It comes equipped with a wireless 12-speed SRAM Apex XPLR AXS drivetrain to deliver plenty of gears for exploring the dusty road.

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
A SRAM Apex XPLR AXS 12-speed drivetrain offers precise, fully wireless shifting that's made for the roughest roads
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 5 AXS (Gen 3) gravel bike in Trek Black/Matte Carbon Smoke finish with up to 36 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 5 AXS Gen 3 (Black/Smoke) 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 SL, Tubeless Ready, 21 mm rim width, 100x12 mm thru axle
Wheel rear	Bontrager Paradigm SL, Tubeless Ready, 21 mm rim width, 142x12 mm thru axle
Tyre	Size: XS, S, M, ML, L, XL Bontrager Girona Pro, Tubeless Ready, GR puncture protection, aramid bead, 60 tpi, 700x42 mm Size: XS, S, M, ML, L, XL Bontrager Girona RSL, Tubeless Ready, GR puncture protection, aramid bead, 220 tpi, 700x42 mm
E-system
Battery	SRAM eTap battery pack (with charger)
Drivetrain
Rear derailleur	SRAM Apex XPLR eTap AXS, 44T max cog
Crank	Size: XS, S SRAM Apex 1, 40T, DUB Wide, 165 mm length Size: M SRAM Apex 1, 40T, DUB Wide, 170 mm length Size: ML, L SRAM Apex 1, 40T, DUB Wide, 172.5 mm length Size: XL SRAM Apex 1, 40T, DUB Wide, 175 mm length
Bottom bracket	SRAM DUB, T47 threaded, internal bearing
Cassette	SRAM XPLR PG-1231, 11-44, 12-speed
Chain	SRAM Apex, 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 Elite, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length Size: S Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length Size: M, ML Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length Size: L Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length Size: XL Bontrager Elite, 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 - 9.50 kg / 20.95 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 5 AXS Gen 3 (Black/Smoke) 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.