TREK CHECKPOINT ALR 4 2025

Frame: Alpha Series 300 Aluminum with tapered head tube, internal cable routing, 3S chain retention, T47 bottom bracket, rack and fender mounts, integrated frame bag mounts, Flat-Mount disc brakes, 142x12 mm thru-axle.

Fork: Carbon Checkpoint fork with tapered steerer, rack and fender mounts, Flat-Mount disc brakes, 12x100 mm thru-axle.

Weight: Size 56 - 9.91 kg / 21.85 lbs (with TLR sealant, no inner tubes).

Maximum Weight: The bike has a maximum total weight limit (including bike, rider, and cargo) of 125 kg (275 lbs).

Shifter: SRAM Apex, 11-speed.

Rear Derailleur: SRAM Apex 1, long cage, compatible with a 42-tooth max cog.

Crankset:

• Size 49: SRAM Apex 1, 40T, DUB Wide spindle, 165 mm length.
• Size 52: SRAM Apex 1, 40T, DUB Wide spindle, 170 mm length.
• Sizes 54, 56: SRAM Apex 1, 40T, DUB Wide spindle, 172.5 mm length.
• Sizes 58, 61: SRAM Apex 1, 40T, DUB Wide spindle, 175 mm length.

Bottom Bracket: SRAM DUB, threaded T47, 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.

Front Hub: Bontrager aluminum, sealed bearing, centerlock disc, 100x12 mm thru-axle.

Front Wheel Lock: Bontrager Switch thru-axle with removable lever.

Rear Hub: Bontrager alloy, sealed bearing, centerlock disc, Shimano 11-speed freehub, 142x12 mm thru-axle.

Rear Wheel Lock: Bontrager Switch thru-axle with removable lever.

Rims: Bontrager Paradigm, Tubeless Ready, 24 holes, 21 mm width, Presta valve.

Tires: Bontrager GR1 Team Issue, tubeless-ready, Inner Strength Casing, aramid bead, 120 TPI, 700x40 mm.

Tire Sealant: Bontrager TLR, 177 ml.

Rim Tape: Bontrager TLR.

Max Tire Size: Refer to the maintenance manual.

Saddle:

• Sizes 49, 52: Bontrager Verse Comp, steel rails, 155 mm width.
• Sizes 54, 56, 58, 61: Bontrager Verse Comp, steel rails, 145 mm width.

Seatpost: Bontrager aluminum, 27.2 mm diameter, 12 mm offset, 330 mm length.

Handlebar:

• Size 49: Bontrager Elite Gravel, 38 cm width.
• Size 52: Bontrager Elite Gravel, 40 cm width.
• Sizes 54, 56: Bontrager Elite Gravel, 42 cm width.
• Sizes 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°, 70 mm length.
• Sizes 52, 54: Bontrager Elite, 31.8 mm, Blendr compatible, 7°, 80 mm length.
• Sizes 56, 58: Bontrager Elite, 31.8 mm, Blendr compatible, 7°, 90 mm length.
• Size 61: Bontrager Elite, 31.8 mm, Blendr compatible, 7°, 100 mm length.

Brakes: Tektro mechanical disc brakes, dual piston, Flat-Mount.

Brake Rotors: Tektro, centerlock, 160 mm.

Brake Rotor Specifications: Maximum rotor size: 160 mm front and rear.