Checkpoint ALR 4 is the best value gravel bike in the lineup. 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.
| 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 |
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| Fork | Checkpoint, full carbon, tapered carbon steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle |
| Weight | 56 - 9.80 kg / 21.61 lbs (with TLR sealant, no tubes) |
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg). |
| Shifter | SRAM Apex, 11 speed |
| Rear derailleur | SRAM Apex 1, long cage, 42T max cog |
| *Crank |
Size:
49 SRAM Apex 1, 40T, DUB Wide, 165mm length |
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Size:
52 SRAM Apex 1, 40T, DUB Wide, 170mm length |
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Size:
54, 56 SRAM Apex 1, 40T, DUB Wide, 172.5mm length |
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Size:
58, 61 SRAM Apex 1, 40T, DUB Wide, 175mm length |
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| Bottom bracket | SRAM DUB, T47 threaded, internal bearing |
| Cassette | SRAM PG-1130, 11-42, 11 speed |
| Chain | SRAM PC-1130, 11 speed |
| Max chainring size | 1x: 44T, 2x: 50/34 |
| Hub front | Bontrager alloy, sealed bearing, centerlock disc, 100x12mm thru axle |
| Skewer front | Bontrager Switch thru axle, removable lever |
| Hub rear | Bontrager alloy, sealed bearing, centerlock disc, Shimano 11-speed freehub, 142x12mm thru axle |
| Skewer rear | Bontrager Switch thru axle, removable lever |
| Rim | Bontrager Paradigm, Tubeless Ready, 24-hole, 21mm width, Presta valve |
| Spokes | 14g stainless steel, black |
| Tire | Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700x40mm |
| Tire part | Bontrager TLR sealant, 6oz |
| Rim strip | Bontrager TLR |
| Max tire size | See service manual |
| *Saddle |
Size:
49, 52 Bontrager Verse Comp, steel rails, 155mm width |
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Size:
54, 56, 58, 61 Bontrager Verse Comp, steel rails, 145mm width |
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| Seatpost | Bontrager alloy, 27.2mm, 12mm offset, 330mm length |
| *Handlebar |
Size:
49 Bontrager Elite Gravel, 38cm width |
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Size:
52 Bontrager Elite Gravel, 40cm width |
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Size:
54, 56 Bontrager Elite Gravel, 42cm width |
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Size:
58, 61 Bontrager Elite Gravel, 44cm width |
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| Handlebar tape | Bontrager Supertack Perf tape |
| *Stem |
Size:
49 Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length |
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Size:
52, 54 Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length |
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Size:
56, 58 Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length |
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Size:
61 Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length |
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| Brake | Tektro C550 mechanical disc brake, dual piston, flat mount |
| Brake rotor | Tektro, centerlock, 160mm |
| Rotor size | Max brake rotor sizes: 160mm front & rear |