Vietnamese
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.
Why you’ll love it
- Checkpoint ALR 4 introduces you to the exciting new frontier of gravel riding at a value that can’t be matched.
- This bike is exceedingly versatile and suited to a wide variety of ride styles, including gravel rides, bikepacking, and daily commutes.
- Mounts on the seat tube and both sides of the down tube make it easy to carry extra gear and water.
- Massive tire clearance means you can use tires up to 45c for extra traction and stability in any conditions.
- The horizontal sliding dropout makes it easy to fine-tune your geometry or run singlespeed.
SPECIFICATIONS
*Spec applies to all sizes unless otherwise noted.Frameset
Frame: 300 Series Alpha Aluminum, tapered head tube, Control Freak internal routing, 3S chain keeper, rack and fender mounts, flat mount disc, horizontal sliding dropouts, 142x12mm thru axle.
Fork: Checkpoint carbon, tapered alloy steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle.
Frame fit: Gravel
Wheels
Hub front: Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle
Skewer front: 100x12mm thru axle
Hub rear: Bontrager alloy, sealed bearing, centerlock disc, Shimano 11-speed freehub, 142x12mm thru axle
Skewer rear: 142x12mm thru axle, 174mm length
Rim: Bontrager Tubeless Ready, 28-hole, 17mm width, presta valve
Spokes: 14g stainless steel
Tire: Bontrager GR1 Comp, wire bead, 60 tpi, 700x40c
Max tire size: 45c Bontrager tires (49 & 52cm: 40c due to toe overlap), with at least 4mm of clearance to frame
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, 165mm length
Size 52: Shimano GRX RX600, 46/30, 170mm length
Size 54, 56: Shimano GRX RX600, 46/30, 172.5mm length
Size 58, 61: Shimano GRX RX600, 46/30, 175mm length
Bottom bracket: Shimano RS500, 86mm, PressFit
Cassette: Shimano Tiagra HG500, 11-34, 10 speed
Chain: KMC X10
Components
Saddle: Bontrager Montrose Comp, steel rails, 138mm width
Seatpost: Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset, 330mm length
Handlebar
Size 49: Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 38cm width
Size 52: Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 40cm width
Size 54, 56: Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 42cm width
Size 58, 61: Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 44cm width
Handlebar tape: Bontrager Supertack Perf tape
Stem
Size 49: Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length
Size 52, 54: Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length
Size 56, 58: Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length
Size 61: Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 110mm 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, centerlock, 160mm
Weight
Weight: Size 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 275 pounds (~ 125 kg).
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