Trek Checkpoint ALR 5 Gen 3

Trek Checkpoint ALR 5 Gen 3 Overview

The Trek Checkpoint ALR 5 Gen 3 is an aluminum gravel bike built with a 300 Series Alpha Aluminum frame, internal cable routing, 3S chain keeper, T47 bottom bracket standard, UDH, rack and fender mounts, integrated frame bag mounts, flat mount disc fitting, and 142x12mm chamfered thru axle. It uses a Trek Checkpoint full carbon fork with a tapered steerer, rack mounts, fender mounts, flat mount disc fitting, and 12x100mm thru axle.

The drivetrain uses SRAM Apex and SRAM Apex XPLR components, including a SRAM Apex 12-speed shifter, SRAM Apex XPLR rear derailleur, SRAM Apex 1 40T DUB Wide crank, SRAM XPLR PG-1231 11-44 12-speed cassette, and SRAM Apex 12-speed chain. Braking is handled by SRAM Apex D1 hydraulic disc brakes with SRAM Apex brake levers and SRAM Paceline 160mm centerlock rotors.

Bontrager alloy sealed bearing hubs, Bontrager Paradigm 23 Tubeless Ready rims, 14g stainless steel spokes, and Bontrager Girona Pro 700x42mm Tubeless Ready tires complete the wheel system. The build is finished with a Verse Short Comp saddle, Bontrager alloy seatpost, Bontrager Elite Gravel alloy handlebar, Bontrager Elite stem, and Bontrager Supertack Perf tape.

Key Features of Trek Checkpoint ALR 5 Gen 3

• 300 Series Alpha Aluminum frame includes internal cable routing, UDH, rack and fender mounts, and integrated frame bag mounts.
• Trek Checkpoint full carbon fork uses a tapered steerer, rack mounts, fender mounts, flat mount disc fitting, and 12x100mm thru axle.
• SRAM Apex XPLR 12-speed drivetrain uses a 40T crank and 11-44 cassette.
• SRAM Apex D1 hydraulic disc brakes are paired with SRAM Paceline 160mm centerlock rotors.
• Bontrager Paradigm 23 Tubeless Ready rims use a 23mm width and Presta valve.
• Bontrager Girona Pro 700x42mm tires use Tubeless Ready construction, GR puncture protection, aramid bead, and 60 tpi casing.
• Bontrager Elite Gravel alloy handlebar and Bontrager Elite stem come in size-specific dimensions.
• Maximum tire size is 50mm without fenders and 42mm with fenders.

Ride Use

The Trek Checkpoint ALR 5 Gen 3 is built for gravel riding. Its aluminum frame, full carbon fork, 700x42mm gravel tires, SRAM Apex XPLR 12-speed drivetrain, hydraulic disc brakes, and Tubeless Ready rims match the needs of mixed-surface riding. Rack mounts, fender mounts, and integrated frame bag mounts add practical carrying options for gravel setups.

Why Choose This Bike

Choose the Trek Checkpoint ALR 5 Gen 3 for a gravel bike with a 300 Series Alpha Aluminum frame, full carbon Checkpoint fork, SRAM Apex XPLR 12-speed drivetrain, SRAM Apex hydraulic disc brakes, Bontrager Paradigm 23 Tubeless Ready rims, and Bontrager Girona Pro 700x42mm tires. The build includes rack and fender mounts, integrated frame bag mounts, size-specific Bontrager cockpit parts, and Bontrager TLR sealant. It comes in Fjord Blue and Bronze Age, with an ML weight of 9.87 kg / 21.76 lbs with TLR sealant and no tubes. Trek frames and full-suspension swing arms are covered for the lifetime of the original owner. Other parts are covered under Trek’s limited warranty.