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1939548 / 54293873557850

Product Details

Trek Checkpoint ALR 4 Gen 3 Gravel Bike

The Trek Checkpoint ALR 4 Gen 3 Gravel Bike is an aluminium gravel bike designed for riders looking to explore beyond the tarmac. Its modern endurance geometry delivers stability and comfort on rough terrain, while generous tyre clearance up to 50 mm offers extra grip and control on loose surfaces.

Fitted with an 11-speed Shimano CUES 8000 drivetrain, hydraulic disc brakes and Bontrager Paradigm wheels, it provides smooth shifting and confident stopping power. A lightweight carbon fork helps reduce road buzz, and multiple mounts for bags and accessories make it a practical choice for bikepacking, long adventures or weekend escapes.

Features
  • Frame: 300 Series Alpha Aluminium, internal cable routing, 3S chain keeper, T47, UDH, rack and mudguard mounts, integrated frame bag mounts, flat-mount disc, 142x12 mm chamfered thru axle
  • Fork: Trek Checkpoint, full carbon, tapered steerer, rack mounts, fender mounts, flat mount disc, 12x100 mm thru axle
  • Weight limit: This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 125 kg (275 lb)
  • Shifter: Shimano CUES U6030, 11-speed
  • Rear derailleur: Shimano CUES U8000 GS
  • Crank:
  • Size - XS, S, Shimano CUES FCU60301, 40T ring, 165 mm length
  • Size - M, ML, Shimano CUES FCU60301, 40T ring, 170 mm length
  • Size - L, XL, Shimano CUES FCU60301, 40T ring, 172.5 mm length
  • Bottom bracket: Praxis, T47 threaded, internal bearing
  • Cassette: Shimano CUES LG700, LINKGLIDE, 11-50, 11-speed
  • Chain: Shimano LG500
  • Hub front: Bontrager alloy, sealed bearing, CentreLock disc, 100x12 mm thru axle
  • Skewer front: Bontrager Switch chamfered thru axle, removable lever
  • Hub rear: Bontrager alloy, sealed bearing, CentreLock disc, Shimano 11-speed freehub, 142x12 mm thru axle
  • Skewer rear: Bontrager Switch chamfered thru axle, removable lever
  • Rim: Bontrager Paradigm 23, Tubeless Ready, 24-hole, 23 mm width, Presta valve
  • Spokes: 14 g stainless steel, black
  • Tyre: Bontrager Girona Pro, Tubeless Ready, GR puncture protection, aramid bead, 60 tpi, 700x42 mm
  • Tyre part: Bontrager TLR sealant, 180 ml / 6 oz
  • Max tyre size: 50 mm without mudguards, 42 mm with mudguards (as measured, see manual for details)
  • Saddle: Verse Short Comp, steel rails, 145 mm width
  • Seatpost: Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length
  • Handlebar:
  • Size - XS, S, Bontrager Elite Gravel, alloy, 40 cm width
  • Size - M, ML, Bontrager Elite Gravel, alloy, 42 cm width
  • Size - L, Bontrager Elite Gravel, alloy, 44 cm width
  • Size - XL, Bontrager Elite Gravel, alloy, 46 cm width
  • Handlebar tape: Bontrager Supertack Perf tape
  • Stem:
  • Size - XS, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length
  • Size - S, M, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length
  • Size - ML, L, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length
  • Size - XL, Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length
  • Brakes: Shimano CUES hydraulic disc, flat mount
  • Brake rotor: Shimano RT54, CentreLock, 160 mm
Highlights
  • 300 Series Alpha Aluminium Frame and Carbon Fork
  • Shimano CUES 11 Speed Groupset
Specifications
Model
Checkpoint ALR 4 Gen 3
Bottom Bracket [Maker]
praxis
Bottom Bracket Standard
T47
Brakes [Kind]
Hydraulic Disc
Brakes [Maker]
Shimano
Brakes [Model]
CUES
Cassette [Gearing]
11-50
Cassette [Maker]
Shimano
Cassette [Model]
CUES LG700
Chain [Maker]
Shimano
Chain [Model]
LG500
Chainring [Gearing]
40
Crank [Maker]
Shimano
Crank [Model]
CUES FC-U6030-1
Discipline Compatibility
Gravel
E-Bike
No
F Hub [Maker]
Bontrager
Family
Checkpoint+
Fenders Mounts
Yes
Fork [Axle Type]
12x100mm Thru-Axle
Fork [Brake Type]
Disc
Fork [Maker]
Trek
Fork [Material]
Carbon
Fork [Model]
Trek Checkpoint
Fork [Wheel Size]
700c
Frame [Hanger Standard]
UDH
Frame [Material]
Aluminium
Frame [Tire Clearance]
50c mm
Frameset
No
Gearing [Configuration]
1x
Gearing [Kind]
Conventional
Gender
Unisex
Handlebar [Kind]
Drop
Handlebar [Maker]
Bontrager
Handlebar [Material]
Aluminium
Handlebar [Shape]
Drop bar
Handlebar [Width]
420 mm
R Hub [Maker]
Bontrager
Rack Mounts
Yes
RD [Maker]
Shimano
RD [Model]
CUES U8000 GS
Saddle [Maker]
Trek
Saddle [Width]
145 mm
Seatpost [Diameter]
27.2
Seatpost [Kind]
Rigid
Seatpost [Length]
330 mm
Seatpost [Maker]
Bontrager
Seatpost [Material]
Aluminium
Seatpost [Offset]
12 mm
Shifters [Maker]
Shimano
Shifters [Model]
CUES U6030
Shifting
Mechanical
Stem [Angle]
7 degree
Stem [Clamp Diameter]
31.8
Stem [Maker]
Bontrager
Stem [Material]
Aluminium
Sub Family
Checkpoint ALR Gen 3
Suspension Configuration
Rigid
Tires [Maker]
Bontrager
Tires [Width]
42 mm
Wheels [Configuration]
Front+Rear
Wheels [Kinds]
Tubeless Ready
Wheelset [Inner Width]
23 mm
Wheelset [Maker]
Bontrager
Wheelset [Material]
Aluminium
Wheelset [Model]
Paradigm 23
Product code
1939548 / 54293873557850
Size Guide
—485154576063
Rider Height (Cm)158 - 163162 - 168167 - 174173 - 184184 - 191190 - 197
Seat Tube (ctr-top)440482512543573605
Seat Tube (ctr-ctr)------
Effective Top Tube520531543557583603
Actual Top Tube ------
Seat Angle (°)74.37473.873.57372.8
Head Tube Angle (°)69.5707171.871.872.3
Head Tube Length11512514160200320
Fork Rake525252525252
Chainstay Length450450450450450450
Wheelbase104110451048105210741086
Stack540551565587625655
Reach368373378383392400
Tail747165595956
Standover713741768794826854
Trek 520 Disc Size Guide 2020

*All measurements in mm unless otherwise stated

Reviews
Rating 5 out of 5
5
Rating 5 out of 5
Mel,
Verified purchaser
Shipping & Returns

Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.

Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.

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About Trek

The best bike, ridden everywhere.

Founded in a Wisconsin barn in 1976, Trek has grown into one of the world's most recognised bicycle brands without losing the obsession that started it all: build the best bike, ride it further, share it with everyone.

Trek believes the bicycle is a simple solution to many of the world's most complicated problems. Every bike Trek builds — from the Madone race weapon to the Marlin trail bike — is made with that conviction. More riders, more often, on better bikes.

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