Trek Checkpoint ALR 3 Gen 2

Name: Trek Checkpoint ALR 3 Gen 2
Brand: Trek

2025 RoadGravel Manufacturer page

Trek Checkpoint ALR 3 Gen 2, color Crimson

Price: Not published

Prices shown first for United States
Europe: €1,299 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 9 30–46t / 11–32t
Gear range: 446%
Weight: 10.61 kg 23.4 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

56cm 174–181
58cm 179–185

Components

16 of 20 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

300 Series Alpha Aluminium, tapered head tube, Internal cable routing, 3S chain keeper, T47 BB, rack and mudguard mounts, integrated frame bag mounts, flat-mount disc, 142x12 mm thru-axle Not identified

Suspension

1 part

Fork

Checkpoint, full carbon, tapered carbon steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle Not identified

Drivetrain

7 parts

Bottom bracket

T47, threaded Not identified
Cassette
- Shimano CS-HG400
CS-HG400
Chain
- Shimano CN-HG53
CN-HG53
Crankset
- FSA Omega
Front derailleur
- Shimano Sora FD-R3000 2 speeds
FD-R3000
Rear derailleur
- Shimano Sora RD-R3000 9 speeds
RD-R3000
Shifters
- Shimano Sora SL-R3000
SL-R3000

Brakes

2 parts

Brakes
- Tektro MD-C550
MD-C550
Disc rotors
- Tektro

Wheels and tires

5 parts

Front hub
- Bontrager
Rear hub
- Bontrager
Rims
- Bontrager
Spokes

14g stainless steel, black Not identified
Tires
- Bontrager

Cockpit and contact points

4 parts

Sizes and geometry

2 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 56cm

Table

Reach 407mm

Stack 592mm

Wheelbase 1048mm

Head angle 72.2°

Seat angle 72.8°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 2 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	407	411
Stackmm	592	609
Top tube lengthmm	584	597
Seat tube lengthmm	560	580
Head tube lengthmm	145	165
Head tube angle	72.2°	72.3°
Seat tube angle	72.8°	72.5°
Chainstay lengthmm	435	435
Wheelbasemm	1048	1058
Front centermm	624	634
Bottom bracket dropmm	76	74
Bottom bracket heightmm	273	275
Standover heightmm	809	829
Fork rakemm	45	45
Trailmm	67	66
Stack/reach ratio	1.46	1.48
Suspension and parts
Stem lengthmm	90	90

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Carbon
Bicycle weight: 10.61 kg

23.4 lb
Weight limit: 125 kg

275.6 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 30
Largest chainring: 46
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 27.2 in
Highest gear: 121.3 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: T47
Tire width: 42c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

27.2 gear inches

This value is above the central range for this class.

Cohort: Road / Gravel Model year: 2025
Sample: 1,536 bicycles with this information
Coverage: 76.6% of the class

Highest gear

121.3 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2025
Sample: 1,536 bicycles with this information
Coverage: 76.6% of the class

Shifting

Mechanical

688 of 1,999 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2025
Sample: 1,999 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.4 km/h
Highest gear: 46.4 km/h

Total gear range 446%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 27.2–121.3 gear inches
Class reference (p10–p90): 22.8–126.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2025
Lowest gear: 1536 bicycles with this information, 76.6% of the class
Highest gear: 1536 bicycles with this information, 76.6% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2025 builds

Differences across 2025 builds
Specification	This bicycle Trek Checkpoint ALR 3 Gen 2	Trek Checkpoint ALR 3	Trek Checkpoint ALR 4	Trek Checkpoint ALR 4 Gen 2	Trek Checkpoint ALR 5	Trek Checkpoint ALR 5 Gen 2
Frame
Bicycle weight	10.61 kg	10.61 kg	9.91 kg	9.91 kg	9.71 kg	9.71 kg
Drivetrain
Front chainrings	2	2	1	1	1	1
Smallest chainring	30	30	40	40	40	40
Largest chainring	46	46	40	40	40	40
Rear sprockets	9	9	11	11	12	12
Largest sprocket	32	32	42	42	44	44
Lowest gear	27.2 in	27.2 in	27.6 in	27.6 in	26.4 in	26.4 in
Highest gear	121.3 in	121.3 in	105.5 in	105.5 in	105.5 in	105.5 in
Brakes
Brake type	Mechanical disc	Mechanical disc	Mechanical disc	Mechanical disc	Hydraulic disc	Hydraulic disc
Other specifications
Tire width	42c	42c	40c	40c	40c	40c