Checkpoint ALR 4 is a high-value gravel bike ready for the roads less traveled. Kitted out with a 300 Series Alpha Aluminum frame, Checkpoint ALR 4 is just as responsive on chunky gravel roads as it is smooth on the tarmac. Tons of features like tubeless ready wheels, a SRAM Apex 11-speed drivetrain, and mechanical disc brakes make Checkpoint ALR 4 the perfect ride for ease of entry into the wide world of gravel.
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- The durable and capable 300 Series Alpha Aluminum frame makes for a fun, stable, and responsive ride
- You get serious versatility thats suited for a wide variety of ride styles, from gravel and bikepacking to daily commutes
- Massive tire clearance means you can use tires up to 45c for extra traction and stability in any conditions
- Fork, top tube, and integrated frame mounts make it easy to carry gear and water
- Powerful mechanical disc brakes make stopping in all conditions easy
New progressive geometry
For quick, nimble handling that still keeps you stable and in control on rougher descents.
Tire clearance
Lots of clearance means you can run meatier tires (700x45mm or 27.5x2.1") for tackling chunkier gravel and terrain.
Tons of mounts
Integrated frame bag and fender mounts make it easy to carry gear and water.
Don’t forget your pedals
This bike doesn’t come with pedals because you’ll have a better time on your new bike if you choose your own. See the pedal guide to find the best pedals for your riding style.
| 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, full carbon, tapered carbon steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle |
| Wheel Front | / |
| Tire | Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700x40mm |
| Tire Part | Bontrager TLR sealant, 6oz |
| Hub Front | Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle |
| Hub Rear | Bontrager alloy, sealed bearing, centerlock disc, Shimano 11-speed freehub, 142x12mm thru axle |
| Rim | Bontrager Paradigm, Tubeless Ready, 24-hole, 21mm width, Presta valve |
| Rim Strip | Bontrager TLR |
| Skewer Front | Bontrager Switch thru axle, removable lever |
| Skewer Rear | Bontrager Switch thru axle, removable lever |
| Shifter | SRAM Apex, 11 speed // SRAM Apex, 11 speed |
| Rear Derailleur | SRAM Apex 1, long cage, 42T max cog |
| Crank | SRAM Apex 1, 40T, DUB Wide, 165mm length |
| Bottom Bracket | SRAM DUB, T47 threaded, internal bearing |
| Cassette | SRAM PG-1130, 11-42, 11 speed |
| Chain | SRAM PC-1130, 11 speed |
| Brake | Tektro C550 mechanical disc brake, dual piston, flat mount // Tektro C550 mechanical disc brake, dual piston, flat mount |
| Brake Rotor | Tektro, centerlock, 160mm |
| Saddle | Bontrager Verse Comp, steel rails, 155mm width |
| Seatpost | Bontrager alloy, 27.2mm, 12mm offset, 330mm length |
| Handlebar | Bontrager Elite Gravel, 38cm width |
| Stem | Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length |
Geometry Chart
| B B Drop | 7.8 |
| Chainstay Length | 43.5 |
| Eff Top Tube | 54.1 |
| Frame Reach | 39.3 |
| Frame Size Number | 49 cm |
| Frame Stack | 53.8 |
| Head Angle | 71.2° |
| Head Tube Length | 9 |
| Offset | 4.5 |
| Seat Tube | 49 |
| Seat Tube Angle | 74.1° |
| Standover | 73.5 |
| Trail | 7.4 |
| Wheelbase | 102.5 |
| Wheel Size | 700c |
| B B Drop | 7.8 |
| Chainstay Length | 43.5 |
| Eff Top Tube | 55.5 |
| Frame Reach | 39.9 |
| Frame Size Number | 52 cm |
| Frame Stack | 55.3 |
| Head Angle | 71.6° |
| Head Tube Length | 10.5 |
| Offset | 4.5 |
| Seat Tube | 52 |
| Seat Tube Angle | 73.7° |
| Standover | 76.5 |
| Trail | 7.1 |
| Wheelbase | 103.3 |
| Wheel Size | 700c |
| B B Drop | 7.6 |
| Chainstay Length | 43.5 |
| Eff Top Tube | 57 |
| Frame Reach | 40.3 |
| Frame Size Number | 54 cm |
| Frame Stack | 57.1 |
| Head Angle | 71.8° |
| Head Tube Length | 12.5 |
| Offset | 4.5 |
| Seat Tube | 54 |
| Seat Tube Angle | 73.2° |
| Standover | 78.9 |
| Trail | 7 |
| Wheelbase | 104.1 |
| Wheel Size | 700c |
| B B Drop | 7.6 |
| Chainstay Length | 43.5 |
| Eff Top Tube | 58.4 |
| Frame Reach | 40.7 |
| Frame Size Number | 56 cm |
| Frame Stack | 59.2 |
| Head Angle | 72.2° |
| Head Tube Length | 14.5 |
| Offset | 4.5 |
| Seat Tube | 56 |
| Seat Tube Angle | 72.8° |
| Standover | 80.9 |
| Trail | 6.7 |
| Wheelbase | 104.8 |
| Wheel Size | 700c |
| B B Drop | 7.4 |
| Chainstay Length | 43.5 |
| Eff Top Tube | 59.7 |
| Frame Reach | 41.1 |
| Frame Size Number | 58 cm |
| Frame Stack | 60.9 |
| Head Angle | 72.3° |
| Head Tube Length | 16.5 |
| Offset | 4.5 |
| Seat Tube | 58 |
| Seat Tube Angle | 72.5° |
| Standover | 82.9 |
| Trail | 6.6 |
| Wheelbase | 105.8 |
| Wheel Size | 700c |
| B B Drop | 7.4 |
| Chainstay Length | 43.5 |
| Eff Top Tube | 61.7 |
| Frame Reach | 41.7 |
| Frame Size Number | 61 cm |
| Frame Stack | 63.9 |
| Head Angle | 72.6° |
| Head Tube Length | 19.5 |
| Offset | 4.5 |
| Seat Tube | 61 |
| Seat Tube Angle | 72.1° |
| Standover | 85.9 |
| Trail | 6.5 |
| Wheelbase | 107 |
| Wheel Size | 700c |
