It's right for you if...
You want a single durable, ultra-versatile gravel bike that's ready for adventure. Gravel? Check. Pavement? Check. Multi-day bikepacking? Check. Foul-weather commuting? Check. Check. Check.
The tech you get
A stout aluminum frame with rack and fender mounts, a vibration-absorbing carbon fork, a 2x10 Shimano GRX drivetrain with lower gears for grinding up hills or through rough gravel, hydraulic disc brakes for all-condition stopping power, and wide 700x40c gravel tires 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 rigors of gravel roads, the frame geometry and accessory mounts make it a great choice for road rides and commutes, too.
favorite_borderWhy 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
Gravel Specific Tires
Wider gravel-specific tires provide better traction and more stability while riding on gravel or dirt tracks.
Lightweight fork with carbon fiber legs soaks up hand-numbing road vibration.
Flat Mount disc brakes
All-new Flat Mount disc brakes are more elegant, lighter, smaller, and cleaner than traditional disc brakes, providing superior performance and stopping power under harsh conditions.
Tubeless Ready rims
Bontrager TLR (Tubeless Ready) Road is the first fully integrated tubeless system for road wheels. When you go tubeless with TLR, you can run lower tire pressure for increased traction and comfort without the threat of pinch flats.
*spec applies to all sizes unless otherwise noted
|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|
|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|
|Shifter||Shimano GRX RX400, 10 speed|
|Front derailleur||Shimano GRX RX400, braze-on|
|Rear derailleur||Shimano GRX RX400, long cage, 36T max cog|
Shimano GRX RX600, 46/30, 165mm length
Shimano GRX RX600, 46/30, 170mm length
Shimano GRX RX600, 46/30, 172.5mm length
Shimano GRX RX600, 46/30, 175mm length
|Bottom bracket||Shimano RS500, 86mm, PressFit|
|Cassette||Shimano Tiagra HG500, 11-34, 10 speed|
|Max chainring size||50/34|
|Saddle||Bontrager Montrose Comp, steel rails, 138mm width|
|Seatpost||Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset, 330mm length|
Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 38cm width
Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 40cm width
Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 42cm width
Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 44cm width
|Handlebar tape||Bontrager Supertack Perf tape|
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length
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||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).|
Sizing & Tech
The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local retailer.
156.0 - 162.0 cm
5'1.4" - 5'3.8"
74.0 - 77.0 cm
29.1" - 30.3"
163.0 - 168.0 cm
5'4.2" - 5'6.1"
76.0 - 79.0 cm
29.9" - 31.1"
168.0 - 174.0 cm
5'6.1" - 5'8.5"
78.0 - 82.0 cm
30.7" - 32.3"
174.0 - 180.0 cm
5'8.5" - 5'10.9"
81.0 - 85.0 cm
31.9" - 33.5"
180.0 - 185.0 cm
5'10.9" - 6'0.8"
84.0 - 87.0 cm
33.1" - 34.3"
185.0 - 191.0 cm
6'0.8" - 6'3.2"
86.0 - 90.0 cm
33.9" - 35.4"
All measurements provided in cm unless otherwise noted.
|Frame size number||Wheel size||A — Seat tube||B — Seat tube angle||C — Head tube length||D — Head angle||E — Effective top tube||G — Bottom bracket drop||H — Chainstay length||I — Offset||J — Trail||K — Wheelbase||L — Standover||M — Frame reach||N — Frame stack|