The Trek Checkpoint ALR 4 is an aluminium gravel bike that offers an incredible amount of capability for the price. It’s built for the rigours of gravel and dirt roads, but it’s also right at home on morning commutes and centuries.
- 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
- 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
- Tyre Bontrager GR1 Comp, wire bead, 60 tpi, 700×40 c
- 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
- 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
- Brake rotor Shimano SM-RT70, 160 mm, CenterLock
- Weight 56 – 10.26 kg / 22.62 lbs
- Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 125 kg (275 lb).
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