Trek Checkpoint ALR 4 Gen 2
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Checkpoint ALR 4 is the best value gravel bike in the line-up. 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. Loads 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.
Product details
Overview & Features
At a glance
- 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
- Rear derailleur
- SRAM Apex 1, long cage, 42T max cog
- Brake
- Tektro C550 mechanical disc brake, dual piston, flat mount
Checkpoint ALR 4 is the best value gravel bike in the line-up. 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. Loads 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.
Technical Specifications
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
- Size: 49, 52, 54, 56Bontrager alloy, sealed bearing, CenterLock disc, 100x12 mm thru axleSize: 52, 54, 56, 58Bontrager alloy, sealed bearing, CentreLock disc, 100x12 mm thru axle
- Skewer front
- Bontrager Switch thru axle, removable lever
- Hub rear
- Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142x12 mm thru axle
- Skewer rear
- Bontrager Switch thru-axle, removable lever
- Rim
- Bontrager Paradigm, Tubeless Ready, 24-hole, 21 mm width, Presta valve
- Spokes
- 14 g stainless steel, black
- Tyre
- Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700x40 mm
- Tyre part
- Bontrager TLR sealant, 180 ml/6 oz
- Rim strip
- Bontrager TLR
- Max tyre size
- See service manual
Drivetrain & Gearing
- Shifter
- SRAM Apex, 11-speed
- Rear derailleur
- SRAM Apex 1, long cage, 42T max cog
- Crank
- Size: 49SRAM Apex 1, 40T, DUB Wide, 165 mm lengthSize: 52SRAM Apex 1, 40T, DUB Wide, 170 mm lengthSize: 54, 56SRAM Apex 1, 40T, DUB Wide, 172.5 mm lengthSize: 58SRAM 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
- Max. chainring size
- 1x: 44T (SRAM), 50T (Shimano), 2x: 50/34
Brakes
- 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
Handlebar, Stem & Saddle
- Saddle
- Size: 49, 52Bontrager Verse Comp, steel rails, 155 mm widthSize: 54, 56, 58Bontrager Verse Comp, steel rails, 145 mm width
- Seatpost
- Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length
- Handlebar
- Size: 49Bontrager Elite Gravel, 38 cm widthSize: 52Bontrager Elite Gravel, 40 cm widthSize: 54, 56Bontrager Elite Gravel, 42 cm widthSize: 58Bontrager Elite Gravel, 44 cm width
- Handlebar tape
- Bontrager Supertack Perf tape
- Stem
- Size: 49Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm lengthSize: 52, 54Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm lengthSize: 56, 58Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length
Weight & Dimensions
- 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).
Sizing & Fit
Available sizes
52 cm
Warranty & Support
The supplied Trek / Bontrager / Electra / Diamant policy lists lifetime coverage for specified bicycle frames, with separate terms for other parts and finishes. The current bicycle terms apply to model-year 2020 and newer; older bicycles follow separate historical terms. Eligibility for this bike depends on its model year, ownership, country and the policy conditions.
For warranty support on Trek Checkpoint ALR 4 Gen 2, contact Yellow Jersey with your original proof of purchase. Coverage is subject to the applicable product, ownership, registration and regional conditions; normal wear, misuse and accidental damage are excluded where stated in the full policy.
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