Trek Checkpoint ALR 4 Gravel Bike

Trek Checkpoint ALR 4 Gravel Bike

Checkpoint ALR 4 is the best value gravel bike in the lineup. Kitted out with a 300 Series Alpha Aluminum frame, this model is just as responsive on chunky gravel roads as it is smooth on the tarmac. 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. 

Specifications:

• Frame: 300 Series Alpha Aluminum, tapered head tube, Internal cable routing, 3S chain keeper, T47 BB, rack and fender mounts, integrated frame bag mounts, flat mount disc, 142x12mm thru axle
• Fork: Checkpoint, full carbon, tapered carbon steerer, rack mounts, mudguard mounts, flat-mount disc, 12×100 mm thru axle
• Shifter: SRAM Apex, 11 speed
• Rear derailleur: SRAM Apex 1, long cage, 42T max cog
• Crank: SRAM Apex 1, 40T, DUB Wide, 165, 170, 172.5, or 175 mm depending on frame size
• Bottom bracket: SRAM DUB, T47 threaded, internal bearing
• Cassette: SRAM PG-1130, 11-42, 11-speed
• Chain: SRAM PC-1130, 11-speed
• Front hub: Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle
• Rear hub: Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142×12 mm thru axle
• Rims: Bontrager Paradigm, Tubeless Ready, 24-hole, 21mm width, Presta valve
• Tires: Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700x40mm
• Tire sealant: Bontrager TLR sealant, 180 ml
• Saddle: Bontrager P3 Verse Comp, steel rails
• Seatpost: Bontrager alloy, 27.2mm, 12mm offset, 330mm length
• Handlebar: Bontrager Elite Gravel, 38, 40, 42 or 44 cm width depending on frame size
• Handlebar tape: Bontrager Supertack Perf tape
• Stem: Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70, 80, 90, or 100 mm depending on frame size
• Brakes: Tektro C550 mechanical disc brake, dual piston, flat mount
• Brake rotor: Tektro, centerlock, 160mm