Trek Checkpoint ALR 3 Gen 3

Name: Trek Checkpoint ALR 3 Gen 3
Brand: Trek
Price: 1499.99 USD

2027 RoadGravel Manufacturer page

Trek Checkpoint ALR 3 Gen 3, color Dark Carmine

Price: $1,499.99

Prices shown first for United States

Brand's site · 2026-11-11
Germany: €1,299 Brand's site · 2026-11-11
United Kingdom: £1,200 Brand's site · 2026-11-11
Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 10 40t / 11–48t
Gear range: 436%
Weight: 10.41 kg 23.0 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

XS 143–159
SM 157–165
MD 163–178
MD/LG 176–189
LG 187–195
XL 193–203

Components

17 of 19 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 Aluminum, Internal cable routing, 3S chain keeper, T47, UDH, rack and fender mounts, integrated frame bag mounts, flat mount disc, 142x12mm chamfered thru axle Not identified

Suspension

1 part

Fork
- Trek

Drivetrain

6 parts

Bottom bracket
- Praxis
Cassette
- Shimano CS-LG300-10 10 speeds
CS-LG300-10
Chain
- Shimano CN-LG500
CN-LG500
Crankset
- Shimano Cues FC-U6030-1 11 speeds 10/11t
FC-U6030
Rear derailleur
- Shimano Cues RD-U6000 11 speeds
RD-U6000
Shifters
- Shimano Cues ST-U3030-10R 10 speeds
ST-U3030-10R

Brakes

2 parts

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

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 391mm

Stack 589mm

Wheelbase 1041mm

Head angle 71.8°

Seat angle 73.2°

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 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	380	385	391	397	402	408
Stackmm	545	566	589	611	630	650
Top tube lengthmm	536	548	568	580	592	604
Seat tube lengthmm	445	480	505	530	550	575
Head tube lengthmm	96	117	140	162	181	201
Head tube angle	71.2°	71.6°	71.8°	72.2°	72.3°	72.6°
Seat tube angle	74.1°	73.7°	73.2°	72.8°	72.5°	72.1°
Chainstay lengthmm	435	435	435	435	435	435
Wheelbasemm	1025	1033	1041	1048	1058	1070
Front centermm	602	610	617	624	634	646
Bottom bracket dropmm	78	78	76	76	74	74
Bottom bracket heightmm	271	271	273	273	275	275
Standover heightmm	735	765	789	809	829	859
Fork rakemm	55	55	50	48	48	50
Trailmm	74	71	70	67	66	65
Stack/reach ratio	1.43	1.47	1.51	1.54	1.57	1.59

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Carbon
Bicycle weight: 10.41 kg

23.0 lb
Weight limit: 125 kg

275.6 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 40
Largest chainring: 40
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 48
Lowest gear: 24.2 in
Highest gear: 105.5 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Derailleur hanger: UDH
Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: T47
Tire clearance: Maximum tire width: 50c
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

24.2 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2027
Sample: 213 bicycles with this information
Coverage: 80.0% of the class

Highest gear

105.5 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2027
Sample: 213 bicycles with this information
Coverage: 80.0% of the class

Shifting

Mechanical

126 of 265 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2027
Sample: 265 bicycles with this information
Coverage: 99.6% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.3 km/h
Highest gear: 40.4 km/h

Total gear range 436%

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: 24.2–105.5 gear inches
Class reference (p10–p90): 22.8–127.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2027
Lowest gear: 213 bicycles with this information, 80.0% of the class
Highest gear: 213 bicycles with this information, 80.0% 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 2027 builds
Specification	This bicycle Trek Checkpoint ALR 3 Gen 3	Trek Checkpoint ALR 4 Gen 3	Trek Checkpoint ALR 5 Gen 3	Trek Checkpoint SL 5 Gen 3 AXS	Trek Checkpoint SL 6 Gen 3 AXS	Trek Checkpoint SL 6 Pro Gen 3 AXS
Frame
Frame material	Aluminum	Aluminum	Aluminum	Carbon	Carbon	Carbon
Bicycle weight	10.41 kg	10.4 kg	9.87 kg	9.5 kg	9.49 kg	Not informed
Drivetrain
Rear sprockets	10	11	12	12	13	13
Smallest sprocket	11	11	11	11	10	10
Largest sprocket	48	50	44	44	46	46
Lowest gear	24.2 in	23.2 in	26.4 in	26.4 in	25.2 in	25.2 in
Highest gear	105.5 in	105.5 in	105.5 in	105.5 in	116.0 in	116.0 in
Brakes
Brake type	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Cockpit
Shifting	Mechanical	Mechanical	Mechanical	Electronic	Electronic	Electronic
Other specifications
Wheel material	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Carbon