Checkpoint ALR 3

• The durable and capable 300 Series Alpha Aluminum frame makes for a fun, stable, and responsive ride
• You get serious versatility that's 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

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

Weight

• Weight limit. This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 275 pounds (125 kg).

Shifter

• Shimano Sora R3000, 9 speed

Front derailleur

• Shimano Sora R3000, 31.8mm clamp

Rear derailleur

• Shimano Sora R3000, mid cage, 34T max cog

*Crank

1. Size: 49 FSA Omega, 46x30, 165mm length
2. Size: 52, 54 FSA Omega, 46x30, 170mm length
3. Size: 56, 58 FSA Omega, 46x30, 172.5mm length
4. Size: 61 FSA Omega, 46x30, 175mm length

Cassette

• Shimano Sora HG400, 11-32, 9 speed

Chain

• Shimano Sora HG53, 9 speed

Wheels

• 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 Girona Pro, Tubeless Ready, GR puncture protection, aramid bead, 60 tpi, 700x42mm

Tire part

• Bontrager TLR sealant, 180 ml/6 oz
• Rim strip - Bontrager TLR

Max tire size

• See service manual

*Saddle

1. Size: 49, 52 Bontrager P3 Verse Comp, steel rails, 155 mm width
2. Size: 54, 56, 58, 61 Bontrager P3 Verse Comp, steel rails, 145 mm width

Seatpost

• Bontrager alloy, 27.2mm, 12mm offset, 330mm length

*Handlebar

1. Size: 49 Bontrager Elite Gravel, 38 cm width
2. Size: 52 Bontrager Elite Gravel, 40 cm width
3. Size: 54, 56 Bontrager Elite Gravel, 42 cm width
4. Size: 58, 61 Bontrager Elite Gravel, 44 cm width

Handlebar tape

• Bontrager Supertack Perf tape

*Stem

1. Size: 49 Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 70mm length
2. Size: 56, 58 Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length
3. Size: 61 Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length

Brake

• Tektro C550 mechanical disc brake, dual piston, flat mount

Brake rotor

• Tektro, centerlock, 160mm

Rotor size

• Max brake rotor sizes: 160mm front & rear