Trek Checkpoint ALR 4 2021

$2,249.99

Checkpoint ALR 4 is an aluminum gravel bike that offers an incredible amount of capability for the price. It’s built for the rigors of gravel and dirt roads, but it’s also right at home on morning commutes and centuries. This bike knows no boundaries, which makes it the ideal gateway to adventure on any road or path.

Specifications

*spec applies to all sizes unless otherwise noted

Frameset

Frame 300 Series Alpha Aluminium, tapered head tube, Control Freak internal routing, 3S chain keeper, rack and mudguard mounts, flat-mount disc, Stranglehold dropouts, 142×12 mm thru axle
Fork Checkpoint carbon, tapered alloy steerer, rack mounts, mudguard mounts, flat-mount disc, 12×100 mm thru axle
Wheels

Front hub Bontrager alloy, sealed bearing, CenterLock disc, 100×12 mm thru axle
Rear hub Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142×12 mm thru axle
Rim Bontrager Tubeless Ready, 28-hole, 17 mm width, Presta valve
Spokes 14 g stainless steel
Tire Bontrager GR1 Comp, wire bead, 60 tpi, 700×40 c
Drivetrain

Shifter Shimano GRX RX400, 10-speed
Front derailleur Shimano GRX RX400, braze-on
Rear derailleur Shimano GRX RX400, long cage, 36T max cog
*Crank Size: 49
Shimano GRX RX600, 46/30, 165 mm length
Size: 52
Shimano GRX RX600, 46/30, 170 mm length
Size: 54, 56
Shimano GRX RX600, 46/30, 172.5 mm length
Size: 58, 61
Shimano GRX RX600, 46/30, 175 mm length
Bottom bracket Shimano RS500, 92 mm, PressFit
Cassette Shimano Tiagra HG500, 11-34, 10-speed
Chain KMC X10
Components

Saddle Bontrager Montrose Comp, steel rails, 138 mm width
Seatpost Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 330 mm length
*Handlebar Size: 49
Bontrager Elite IsoZone VR-CF, alloy, 31.8 mm, 93 mm reach, 123 mm drop, 38 cm width
Size: 52
Bontrager Elite IsoZone VR-CF, alloy, 31.8 mm, 93 mm reach, 123 mm drop, 40 cm width
Size: 54, 56
Bontrager Elite IsoZone VR-CF, alloy, 31.8 mm, 93 mm reach, 123 mm drop, 42 cm width
Size: 58, 61
Bontrager Elite IsoZone VR-CF, alloy, 31.8 mm, 93 mm reach, 123 mm drop, 44 cm width
Handlebar tape Bontrager Supertack Perf tape
*Stem Size: 49
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length
Size: 52, 54
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length
Size: 56, 58
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length
Size: 61
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 110 mm length
Headset FSA Integrated, sealed cartridge bearing, 1-1/8″ top, 1.5″ bottom
Brake Shimano RX400 hydraulic disc, flat mount
Brake rotor Shimano SM-RT70, 160mm, centerlock