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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.

The Walkthrough

favorite_borderWhy you'll love it

  1. The Checkpoint ALR 4 introduces you to the exciting new frontier of gravel riding at a value that can't be matched
  2. This bike is exceedingly versatile and suited to a wide variety of riding styles, including gravel rides, bikepacking and daily commutes
  3. Mounts on the seat tube and both sides of the down tube make it easy to carry extra gear and water
  4. Massive tyre clearance means you can use tyres up to 45 c for extra traction and stability in any conditions
  5. The horizontal sliding dropout makes it easy to fine-tune your geometry or run singlespeed


Features

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 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
Wheels
Front hub Bontrager alloy, sealed bearing, CenterLock disc, 100x12 mm thru axle
Rear hub Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142x12 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, 700x40 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
Weight
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).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Bike and frame weights are based on Trek pre-production painted frames at the time of publication. Weights may vary in final production

Sizing & fit

Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorised Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.

 

Rider Height

Inseam

All measurements provided in cm unless otherwise stated.

Frame size number 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
49 cm 49.0 75.0° 9.0 71.4° 51.5 7.8 42.5 4.9 6.6 99.5 74.9 37.3 53.2
52 cm 52.0 74.0° 10.7 71.6° 53.6 7.8 42.5 4.9 6.5 100.5 77.0 37.9 54.9
54 cm 54.0 73.5° 12.6 71.8° 55.1 7.6 42.5 4.9 6.4 101.4 78.9 38.3 56.7
56 cm 56.0 73.0° 14.5 72.2° 56.6 7.6 42.5 4.9 6.1 102.0 80.8 38.7 58.6
58 cm 58.0 73.0° 17.1 72.3° 57.7 7.4 42.5 4.9 6.1 103.2 82.9 39.1 60.9
61 cm 61.0 73.0° 20.0 72.6° 59.2 7.4 42.5 4.9 5.9 104.4 85.8 39.7 63.8

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