Trek Checkpoint ALR 3 Gravel Bike 2025

The Checkpoint ALR 3 is equipped with a 300 Series Alpha Aluminium frame, making it just as responsive on rough gravel roads as it is on smooth tarmac. Additionally, its tubeless-ready wheels provide extra protection against punctures. With a 2x9-speed Shimano group set and mechanical disc brakes, this gravel bike offers a budget-friendly option without sacrificing reliability.

Colours: Crimson

• 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, full carbon, tapered carbon steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle
• Shifter Shimano Sora R3000, 9-speed
• Front derailleur Shimano Sora R3000, 31.8 mm clamp
• Rear derailleur Shimano Sora R3000, mid cage, 34T max cog
• *Crank    
• Size: 49 FSA Omega, 46x30, 165 mm length
• Size: 52, 54 FSA Omega, 46x30, 170 mm length
• Size: 56, 58 FSA Omega, 46x30, 172.5 mm length
• Size: 61FSA Omega, 46x30, 175 mm length
• Cassette Shimano Sora HG400, 11-32, 9-speed
• Chain Shimano Sora HG53, 9-speed
• Skewer front Bontrager Switch thru axle, removable lever
• Skewer rear Bontrager Switch thru-axle, removable lever
• Tyre Bontrager Girona Pro, Tubeless Ready, GR puncture protection, aramid bead, 60 tpi, 700x42 mm
• Tyre part Bontrager TLR sealant, 180 ml/6 oz
• Rim strip Bontrager TLR
• *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
• 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 limit This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 125 kg (275 lb).