Trek Checkpoint ALR 4 Gen 3

Checkpoint ALR 4 is an aluminum gravel bike perfect for dipping your toes into the roads less traveled. Its modern endurance geometry keeps you comfortable over gravel roads and potholes, and 50mm tire clearance gives you room for extra grip. It comes equipped with a carbon fork, Bontrager Paradigm wheels, 11-speed Shimano CUES 8000 shifting, hydraulic disc brakes, and tons of mounts for bags and gear.

Specs:

Frameset

Frame: 300 Series Alpha Aluminum, Internal cable routing, 3S chain keeper, T47, UDH, rack and fender mounts, integrated frame bag mounts, flat mount disc, 142x12mm chamfered thru axle

Fork: Trek Checkpoint, full carbon, tapered steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle

Wheels

Front Hub: Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle

Front Skewer: Bontrager Switch chamfered thru axle

Rear Hub: Bontrager alloy, sealed bearing, centerlock disc, Shimano 11-speed freehub, 142x12mm thru axle

Rear Skewer: Bontrager Switch chamfered thru axle, removable lever

Rim: Bontrager Paradigm 23, Tubeless Ready, 24-hole, 23mm width, Presta valve

Spokes: 14g stainless steel, black

Tire: Bontrager Girona Pro, Tubeless Ready, GR puncture protection, aramid bead, 60 tpi, 700x42mm

Max Tire Size: 50mm without fenders, 42mm with fenders (as measured, see manual for details)

Drivetrain

Shifter: Shimano CUES U6030, 11 speed

Rear derailleur: Shimano CUES U8000 GS

Crank:

• Size: XS, S: Shimano CUES FCU60301, 40T ring, 165mm length
• Size: M, ML: Shimano CUES FCU60301, 40T ring, 170mm length
• Size: L, XL: Shimano CUES FCU60301, 40T ring, 172.5mm length

Bottom bracket: Praxis, T47 threaded, internal bearing

Cassette: Shimano CUES LG700, LINKGLIDE, 11-50, 11 speed

Chain: Shimano LG500, 9/10/11 speed

Max Chainring Size: 1x:44 2x: 46/30

Components

Saddle: Verse Short Comp, steel rails, 145mm width

Seatpost: Bontrager alloy, 27.2mm, 12mm offset, 330mm length

Handlebar:

• Size XS, S: Bontrager Elite Gravel, alloy, 40cm width
• Size M, ML: Bontrager Elite Gravel, alloy, 42cm width
• Size L: Bontrager Elite Gravel, alloy, 44cm width
• Size XL: Bontrager Elite Gravel, alloy, 46cm width

Handlebar tape: Bontrager Supertack Perf tape

Stem:

• Size XS: Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length
• Size S, M: Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length
• Size ML, L: Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length
• Size XL: Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length

Brake: Shimano CUES hydraulic disc, flat mount

Brake: Shimano CUES U6030

Brake Rotor: Shimano RT54, centerlock, 160mm

Rotor Size: Max brake rotor sizes: 180mm front & rear

Weight

ML - 10.40 kg / 22.93 lbs (with TLR sealant, no tubes)

This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg).