Checkpoint ALR 3 is an adventure-ready aluminum gravel bike built for exploring anywhere. Its modern endurance geometry keeps you comfortable over gravel roads or potholes, while a carbon fork helps cut down the road vibrations. It's spec'd to go anywhere without breaking the bank, with Bontrager Paradigm wheels, clearance for 50mm tires,10-speed Shimano CUES 6000 shifting, mechanical disc brakes, and tons of mounts for bags and accessories. 

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
 

Weight

ML - 10.41 kg / 22.96 lbs (with TLR sealant, no tubes)
Weight limit
This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg).
 

Shifter

Shimano CUES 10 Speed Right STU303010R

Rear derailleur
Shimano CUES U6000 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 LG300, LINKGLIDE, 11-48, 10 speed

Chain
Shimano LG500
Max chainring size
1x:44 2x: 46/30
 

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

Skewer front
Bontrager Switch chamfered thru axle

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

Skewer rear
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

Tire part
Bontrager TLR sealant, 180 ml/6 oz
Max tire size
50mm without fenders, 42mm with fenders (as measured, see manual for details)

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
Size: XS, S, M, ML, L, XL
Tektro C550 mechanical disc brake, dual piston, flat mount 0 offset
Size: XS, S, M, ML, L, XL
Shimano CUES U3030
Size: XS, S, M, ML, L, XL
Tektro C550 mechanical disc brake, dual piston, flat mount, No adaptor.
Brake rotor
Tektro, centerlock, 160mm
Rotor size
Max brake rotor sizes: 180mm front & rear