The Trek Checkpoint ALR 4 is a high-value gravel bike ready for the roads less travelled. Kitted out with a 300 Series Alpha Aluminium frame, the Checkpoint ALR 4 is just as responsive on chunky gravel roads as it is smooth on the tarmac. Tons of features like tubeless-ready wheels, a SRAM Apex 11-speed drivetrain and mechanical disc brakes make Checkpoint ALR 4 the perfect ride for ease of entry into the wide world of gravel.
Sunset Cycles offers the 2025 Trek Checkpoint ALR 4 gravel bike in Matte Deep Dark Blue finish with free delivery.
The 2025 Trek CHECKPOINT range: Checkpoint ALR 5 (Grey) | Checkpoint SL 5 AXS Gen 3 (Black/Smoke) | Checkpoint SL 5 AXS Gen 3 (Lava/Black) | Checkpoint SL 6 AXS Gen 3 | Checkpoint SL 7 AXS Gen 3
| Frame & Fork | |
| Frame | 300 Series Alpha Aluminium, tapered head tube, Internal cable routing, 3S chain keeper, T47 BB, rack and mudguard mounts, integrated frame bag mounts, flat-mount disc, 142x12 mm thru-axle |
| Fork | Checkpoint carbon, tapered carbon steerer, rack mounts, mudguard mounts, flat-mount disc, 12x100 mm thru axle |
| Wheels & Tyres | |
| Hub front | Bontrager alloy, sealed bearing, CentreLock disc, 100x12 mm thru axle |
| Hub rear | Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142x12 mm thru axle |
| Rim | Bontrager Paradigm, Tubeless Ready, 24-hole, 21 mm width, Presta valve |
| Tyre | Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700x40 mm |
| E-system | |
| Battery | SRAM eTap battery pack (with charger) |
| Drivetrain | |
| Shifter | SRAM Apex, 11-speed |
| Rear derailleur | SRAM Apex 1, long cage, 42T max cog |
| Crank | Size: 49 SRAM Apex 1, 40T, DUB Wide, 165 mm length Size: 52 SRAM Apex 1, 40T, DUB Wide, 170 mm length Size: 54, 56 SRAM Apex 1, 40T, DUB Wide, 172.5 mm length Size: 58, 61 SRAM Apex 1, 40T, DUB Wide, 175 mm length |
| Bottom bracket | SRAM DUB, T47 threaded, internal bearing |
| Cassette | SRAM PG-1130, 11-42, 11-speed |
| Chain | SRAM PC-1130, 11-speed |
| Components | |
| Saddle | Size: 49, 52 Bontrager Verse Comp, steel rails, 155 mm width Size: 54, 56, 58, 61 Bontrager Verse Comp, steel rails, 145 mm width |
| Seatpost | Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length |
| Handlebar | Size: 49 Bontrager Elite Gravel, 38 cm width Size: 52 Bontrager Elite Gravel, 40 cm width Size: 54, 56 Bontrager Elite Gravel, 42 cm width Size: 58, 61 Bontrager Elite Gravel, 44 cm width |
| Handlebar tape | Bontrager Supertack Perf tape |
| Stem | Size: 49 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length Size: 52, 54 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length Size: 56, 58 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length Size: 61 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length |
| Brake | Tektro C550 mechanical disc brake, dual piston, flat mount |
| Brake rotor | Tektro, CentreLock, 160 mm |
| Rotor size | Max brake rotor sizes: 160 mm front and rear |
| Weight | |
| Weight | 56 - 9.91 kg / 21.85 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). |
| Frame Size | Rider Height* (metric) | Rider Height* (imperial) |
| 49 | 156 - 163 cm | 5'1" - 5'4" |
| 52 | 163 - 168 cm | 5'4" - 5'6" |
| 54 | 168 - 174 cm | 5'6" - 5'9" |
| 56 | 174 - 180 cm | 5'9" - 5'11" |
| 58 | 180 - 185 cm | 5'11" - 6'1" |
| 61 | 185 - 191 cm | 6'1" - 6'3" |
| *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. | ||