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Trek Checkpoint ALR 5 Driftless

Trek Checkpoint ALR 5 Driftless
  • Color: Satin Cobra Blood
Satin Cobra Blood
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Evoking challenging terrain and stunning scenery in southwestern Wisconsin, the Checkpoint ALR 5 Driftless is Trek's most recent addition to their gravel/adventure lineup. The Checkpoint ALR 5 Driftless is a custom-painted, high-quality gravel bike that will hold up for long, rugged miles on pavement, dirt, and even the most treacherous gravel roads. The component build is centered around adventure and exploration. A single-chainring GRX drivetrain is aimed at riders looking for simplicity and reliability. The dropper post -a new addition to the Checkpoint- is aimed at riders who don't shy away from roller-coaster trails. But there's so much more!

To build the Checkpoint's ALR frame, Trek started with their ultralight hydroformed 300 Series Alpha Aluminum. Refined frame shaping and a tapered head tube add plenty of strength, bringing instant pedaling response and razor-sharp handling to every mile. Mounts for racks, fenders, integrated frame bags, and bottle cages galore are found throughout the Checkpoint ALR. The Checkpoint’s slightly longer top tube moves the front wheel further ahead of the rider, improving stability on crumbly descents. A correspondingly short stem and short-reach handlebar keeps the bike’s fit unchanged. A carbon fiber fork soaks up fatiguing vibration from washboard hardpan.

The components chosen for the Checkpoint ALR 5 Driftless are Shimano's 11-speed GRX group. Built to put up with dirty, messy conditions, the GRX component group will get you through multi-day adventures, or just a rainy commute across town. This version of GRX is a single-ring drivetrain, bringing simplicity and reliability to every mile. A 40T GRX single chainring crankset is matched with an 11-42T Shimano SLX cassette, boasting a very wide gearing range. When laden down with bags and cargo on hilly terrain, the Checkpoint ALR Driftless can help you meet the challenge. A GRX RX812 long cage rear derailleur will handle shifting under load and while tackling washboard surfaces, thanks to an onboard clutch. 11-speed GRX dual-control levers feature textured hoods and adjustable lever reach for excellent ergonomics. Bontrager supplies the tubeless-ready alloy Paradigm wheelset. The 21mm interior rim width allows a tire to spread out for improved traction and handling on loose surfaces. Meaty 700x40c Bontrager GR2 Team Issue tires bring a more aggressive tread to the Checkpoint ALR 5 Driftless for increased traction on gnarly trails and jeep doubletrack. Shimano GRX hydraulic disc brakes deliver reliable stopping power in all conditions, rain or shine (or mud).

The aforementioned Easton EA70 AX dropper post is operated with the left hand GRX lever, getting the Bontrager P3 Verse Comp saddle out of the way with 50mm of travel. Cool, huh? An accessory-ready alloy Bontrager Elite Blendr stem and flared alloy Bontrager Elite Gravel handlebar complete the cockpit of this bike built for epic adventures.

A color-matched custom Bontrager frame bag that features the same topo map design as the Checkpoint ALR 5 Driftless is included with the purchase of this bicycle.

Geometry Chart:
BB Drop (cm) 7.8 7.8 7.6 7.6 7.4 7.4
Chainstay Length (cm) 43.5 43.5 43.5 43.5 43.5 43.5
Eff. Top Tube (cm) 54.1 55.5 57.0 58.4 59.7 61.7
Frame Reach (cm) 39.3 39.9 40.3 40.7 41.1 41.7
Frame Size Number (cm) 49 52 54 56 58 61
Frame Stack (cm) 53.8 55.3 57.1 59.2 60.9 63.9
Head Angle 71.2° 71.6° 71.8° 72.2° 72.3° 72.6°
Head Tube Length (cm) 9 10.5 12.5 14.5 16.5 19.5
Offset (cm) 4.5 4.5 4.5 4.5 4.5 4.5
Seat Tube (cm) 49 52 54 56 58 61
Seat Tube Angle 74.1° 73.7° 73.2° 72.8° 72.5° 72.1°
Standover (cm) 73.5 76.5 78.9 80.9 82.9 85.9
Trail (cm) 7.4 7.1 7 6.7 6.6 6.5
Wheelbase (cm) 102.5 103.3 104.1 104.8 105.8 107
Wheel Size 700c 700c 700c 700c 700c 700c
SizeHeight (cm)
49cm 156.0 - 163.0cm
52cm 163.0 - 168.0cm
54cm 168.0 - 174.0cm
56cm 174.0 - 180.0cm
58cm 180.0 - 185.0cm
61cm 185.0 - 191.0cm


Frame 300 Series Alpha Aluminum, tapered head tube, Internal cable routing, 3S chain keeper, T47 BB, rack and fender mounts, integrated frame bag mounts, flat mount disc, 142x12mm thru axle
Fork Checkpoint, carbon legs, tapered alloy steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle
Rims Bontrager Paradigm, Tubeless Ready, 24-hole, 21mm width, presta valve // Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21mm width, presta valve
Hubs Front: Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle
Rear: Bontrager alloy, sealed bearing, centerlock disc, Shimano 11-speed freehub, 142x12mm thru axle
Spokes 14g stainless steel
Axles Bontrager Switch thru axle, 12mm, removable lever
Tires Bontrager GR2 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700x40c
Bottom Bracket Praxis, T47 threaded, internal bearing
Crankset Shimano GRX RX600
Chainrings 40T
Shifters Shimano GRX RX810, 11 speed // Shimano GRX RX810 hydraulic disc
Rear Derailleur Shimano GRX RX812, long cage, 42T max cog
Cassette/Freewheel Shimano SLX M7000, 11-42T, 11 speed
Chain Shimano HG601
Brakes Shimano GRX hydraulic disc, flat-mount
Rotors Shimano SM-RT70, centerlock, 160mm
Brake Levers Shimano GRX hydraulic
Handlebars Bontrager Elite Gravel, alloy
Stem Bontrager Elite, alloy, 31.8mm, Blendr compatible, 7 degree
Headset FSA Integrated, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom
Seatpost Easton EA70 AX, 27.2mm, 0mm offset, 50mm travel
Saddle Bontrager P3 Verse Comp, steel rails
Accessories & Extras Bontrager TLR sealant, 6oz, integrated color-matched frame bag

* Subject to change without notice.