TrekCheckpoint ALR 5 Gen 3 Gravel Bike
The Trek Checkpoint ALR 5 Gen 3 Gravel Bike is an aluminium adventure bike built to go wherever the road or trail leads. Its modern endurance geometry delivers confident handling and lasting comfort over long distances, while a carbon fork helps absorb vibrations from rough terrain.
With 50 mm tyre clearance, there’s ample room for extra grip and control on loose or uneven surfaces. The bike is equipped with a 12-speed SRAM Apex XPLR drivetrain for reliable, gravel-specific gearing, along with powerful hydraulic disc brakes for confident stopping in all conditions. Tubeless Ready Bontrager Paradigm wheels and multiple mounting points for bags and gear make it ideal for bikepacking, gravel races or all-day exploration.
Technical Specification
| Frame | 300 Series Alpha Aluminium, internal cable routing, 3S chain keeper, T47, UDH, rack and mudguard mounts, integrated frame bag mounts, flat-mount disc, 142×12 mm chamfered thru axle |
| Fork | Trek Checkpoint, full carbon, tapered steerer, rack mounts, fender mounts, flat mount disc, 12×100 mm thru axle |
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 125 kg (275 lb) |
| Shifter | SRAM Apex, 12 speed |
| Rear derailleur | SRAM Apex XPLR, 44T max cog |
| Crank | |
| Size – XS, S, SRAM Apex 1, 40T, DUB Wide, 165 mm length | |
| Size – M, ML, SRAM Apex 1, 40T, DUB Wide, 170 mm length | |
| Size – L, XL, SRAM Apex 1, 40T, DUB Wide, 172.5 mm length | |
| Bottom bracket | SRAM DUB Wide, T47 threaded, internal bearing |
| Cassette | SRAM XPLR PG-1231, 11-44, 12-speed |
| Chain | SRAM Apex, 12-speed |
| Max chainring size | 1x |
| Hub front | Bontrager alloy, sealed bearing, CentreLock disc, 100×12 mm thru axle |
| Skewer front | Bontrager Switch chamfered thru axle, removable lever |
| Hub rear | Bontrager alloy, sealed bearing, CentreLock disc, Shimano 11-speed freehub, 142×12 mm thru axle |
| Skewer rear | Bontrager Switch chamfered thru axle, removable lever |
| Rim | Bontrager Paradigm 23, Tubeless Ready, 24-hole, 23 mm width, Presta valve |
| Spokes | 14 g stainless steel, black |
| Tyre | Bontrager Girona Pro, Tubeless Ready, GR puncture protection, aramid bead, 60 tpi, 700×42 mm |
| Tyre part | Bontrager TLR sealant, 180 ml / 6 oz |
| Max tyre size | 50 mm without mudguards, 42 mm with mudguards (as measured, see manual for details) |
| Saddle | Verse Short Comp, steel rails, 145 mm width |
| Seatpost | Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length |
| Handlebar | |
| Size – XS, S, Bontrager Elite Gravel, alloy, 40 cm width | |
| Size – M, ML, Bontrager Elite Gravel, alloy, 42 cm width | |
| Size – 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, 70 mm length | |
| Size – S, M, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length | |
| Size – ML, 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 | |
| Brakes | SRAM Apex D1 hydraulic disc, flat mount |
| Brake rotor | SRAM Paceline, rounded, CentreLock, 160 mm |
| Brake lever | SRAM Apex, 12 speed |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.

































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