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. This bike knows no boundaries, which makes it the ideal gateway to adventure on any road or path.
It's right for you if...
You want a single durable, ultra-versatile gravel bike that's ready for adventure. Gravel? Check. Tarmac? Check. Multi-day bikepacking? Check. Foul-weather commuting? Check. Check. Check.
The tech you get
A stout aluminium frame with rack and mudguard mounts, a vibration-absorbing carbon fork, a 2x10 Shimano GRX drive train with lower gears for grinding up hills or through rough gravel, hydraulic disc brakes for all-condition stopping power and wide 700x40c gravel tyres for added stability and traction.
The final word:
Bring it on, gravel! Checkpoint ALR 4 is a high-value gateway to a world of adventure. It's rugged, fast, comfortable and has an amazing amount of tech for its price. Though it's made to stand up to the rigours of gravel roads, the frame geometry and accessory mounts make it a great choice for road rides and commutes too.
Frame: 300 Series Alpha Aluminium, tapered head tube, Control Freak internal routing, 3S chain keeper, rack and fender mounts, flat mount disc, horizontal sliding dropouts, 142x12 mm thru-axle
Fork: Checkpoint carbon, tapered alloy steerer, rack mounts, mudguard mounts, flat-mount disc, 12x100 mm thru axle
Hub front: Bontrager alloy, sealed bearing, CenterLock disc, 100x12 mm thru axle
Skewer front: 100x12 mm thru-axle
Hub rear: Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142x12 mm thru axle
Skewer rear: 142x12 mm thru-axle, 174 mm length
Rim: Bontrager Tubeless Ready, 28-hole, 17 mm width, Presta valve
Tyre: Bontrager GR1 Comp, wire bead, 60 tpi, 700x40 c
Max tyre size: 45c Bontrager tyres (49 & 52cm: 40c due to toe overlap), with at least 4mm of clearance to frame
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, 86 mm, PressFit
Cassette: Shimano Tiagra HG500, 11-34, 10-speed
Saddle: Bontrager Montrose Comp, steel rails, 138 mm width
Seatpost: Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 330 mm length
Head set: FSA Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom
Brake: Shimano RX400 hydraulic disc
Brake rotor: Shimano SM-RT70, CenterLock, 160 mm
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).
