Trek Checkpoint AL 3

Name: Trek Checkpoint AL 3
Brand: Trek

2019 RoadGravel Manufacturer page

Last known price: $1,199

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 9 34–50t / 11–32t
Gear range: 428%
Weight: 10.5 kg 23.1 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

44cm 150–155
49cm Not informed
52cm 162–169
54cm 167–174
56cm 173–180
58cm 179–186
61cm 184–191

Components

16 of 21 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

Alpha 200 series aluminum, tapered head-tube, flat-mount disc brakes, 12mm thru-axle, internal cable routing, w/rack mounts and hidden fender mounts Not identified

Suspension

1 part

Fork

Checkpoint carbon disc, tapered steerer, flat mount disc brakes, rack mounts, hidden fender mounts, 12mm thru axle Not identified

Drivetrain

7 parts

Bottom bracket

Sealed cartridge Not identified
Cassette
- Shimano
Chain
- Shimano
Crankset
- Shimano Sora 50/34t
Front derailleur
- Shimano Sora
Rear derailleur
- Shimano Sora
Shifters
- Shimano Sora

Brakes

1 part

Brakes
- Tektro MD-C550
MD-C550

Wheels and tires

4 parts

Cockpit and contact points

7 parts

Grips
- Bontrager
Handlebar
- Bontrager
Headset

Integrated, cartridge bearing, sealed, 1-1/8˝ top, 1.5˝ bottom Not identified
Pedals

Not included Not identified
Saddle
- Bontrager
Seatpost
- Bontrager
Stem
- Bontrager

Sizes and geometry

7 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 54cm

Table

Reach 378mm

Stack 574mm

Wheelbase 1018mm

Head angle 71.8°

Seat angle 73.5°

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 7 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	368	373	376	378	380	382	386
Stackmm	531	541	561	574	590	607	637
Top tube lengthmm	505	518	537	548	560	568	581
Seat tube lengthmm	390	440	475	500	525	548	567
Head tube lengthmm	90	100	120	135	150	170	200
Head tube angle	70.6°	71.4°	71.7°	71.8°	72.2°	72.3°	72.6°
Seat tube angle	75.5°	75°	74°	73.5°	73°	73°	73°
Chainstay lengthmm	430	430	430	430	430	430	430
Wheelbasemm	1002	1005	1011	1018	1021	1028	1039
Front centermm	585	587	593	600	603	609	620
Bottom bracket dropmm	80	78	78	76	76	74	74
Bottom bracket heightmm	275	277	277	279	279	281	281
Standover heightmm	685	723	755	775	794	816	837
Fork rakemm	50	51	50	50	50	50	51
Trailmm	72	66	63	64	61	61	59
Stack/reach ratio	1.44	1.45	1.49	1.52	1.55	1.59	1.65

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: 10.5 kg

23.1 lb
Weight limit: 125 kg

275.6 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 50
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 30.8 in
Highest gear: 131.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire clearance: Maximum tire width: 38c
Tire width: 32c
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

30.8 gear inches

This value is above the central range for this class.

Cohort: Road / Gravel Model year: 2019
Sample: 449 bicycles with this information
Coverage: 89.2% of the class

Highest gear

131.8 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2019
Sample: 449 bicycles with this information
Coverage: 89.2% of the class

Shifting

Mechanical

65 of 503 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2019
Sample: 503 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.8 km/h
Highest gear: 50.5 km/h

Total gear range 428%

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: 30.8–131.8 gear inches
Class reference (p10–p90): 24.4–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2019
Lowest gear: 449 bicycles with this information, 89.2% of the class
Highest gear: 449 bicycles with this information, 89.2% 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 2019 builds

Differences across 2019 builds
Specification	This bicycle Trek Checkpoint AL 3	Trek Checkpoint AL 4	Trek Checkpoint ALR 4	Trek Checkpoint ALR 4 Women's	Trek Checkpoint ALR 5 Women's	Trek Checkpoint SL 5 Women's
Frame
Intended fit	Unisex	Unisex	Unisex	womens	womens	womens
Frame material	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Carbon
Bicycle weight	10.5 kg	10.56 kg	10.12 kg	9.98 kg	9.77 kg	9.54 kg
Drivetrain
Rear sprockets	9	10	10	10	11	11
Largest sprocket	32	32	34	34	34	34
Lowest gear	30.8 in	30.8 in	29.0 in	29.0 in	29.0 in	29.0 in
Brakes
Brake type	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Other specifications
Tire clearance	Maximum tire width: 38c	Maximum tire width: 38c	Maximum tire width: 45c	Maximum tire width: 45c	Not informed	Not informed
Tire width	32c	32c	40c	40c	40c	40c
Wheel material	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Not informed
Bottom bracket standard	Not informed	Not informed	BB86/BB92	BB86/BB92	BB86/BB92	Not informed