Trek 1120

2021 RoadGravel Manufacturer page

Last known price: $2,849

Prices shown first for United States
Suspension: Rigid
Wheels: 29″
Drivetrain: 1 × 12 30t / 10–51t
Gear range: 510%
Weight: 14.08 kg 31.0 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

15.5" 153–167
17.5" 170–184
19.5" 176–189
21.5" 186–196

Components

18 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 Platinum Aluminum, tapered head tube, internal derailleur & dropper post routing, proprietary rack mounts, horizontal sliding dropouts, Boost148, 12mm thru axle Not identified

Drivetrain

6 parts

Bottom bracket
- Shimano BB-MT500
BB-MT500
Cassette
- Shimano SLX CS-M7100-12 12 speeds
CS-M7100-12
Chain
- Shimano SLX CN-M7100
CN-M7100
Crankset
- Shimano SLX FC-M7100 12 speeds 30t
FC-M7100
Rear derailleur
- Shimano SLX RD-M7100 12 speeds
RD-M7100
Shifters
- Shimano SLX SL-M7100
SL-M7100

Brakes

2 parts

Brakes
- Shimano BR-MT420
BR-MT420
Disc rotors
- Shimano SM-RT56
SM-RT56

Wheels and tires

5 parts

Front hub
- Bontrager
Rear hub
- Bontrager
Rims
- Sun Ringlé
Spokes

14g stainless steel Not identified
Tires
- Bontrager

Cockpit and contact points

6 parts

Other components

1 part

Racks

1120 Adventure rack system with dry-bag holders Not identified

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 17.5"

Table

Reach 422mm

Stack 634mm

Wheelbase 1108mm

Head angle 70.4°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	396	422	451	471
Stackmm	634	634	642	651
Top tube lengthmm	560	586	619	643
Seat tube lengthmm	394	419	470	521
Head tube lengthmm	100	100	110	120
Head tube angle	70.4°	70.4°	70.3°	70.3°
Seat tube angle	73.5°	73.5°	73.5°	73.5°
Chainstay lengthmm	440	440	440	440
Wheelbasemm	1082	1108	1142	1166
Front centermm	653	679	712	736
Bottom bracket dropmm	76	75	75	75
Bottom bracket heightmm	314	315	315	315
Standover heightmm	778	791	792	792
Fork rakemm	51	50	51	52
Trailmm	85	85	85	86
Stack/reach ratio	1.60	1.50	1.42	1.38

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: 14.08 kg

31.0 lb
Weight limit: 136 kg

299.8 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 30
Largest chainring: 30
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 17.1 in
Highest gear: 87.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BB86/BB92
Tire clearance: Maximum tire width: 3″
Tire width: 3″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

3 measures

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

Lowest gear

17.1 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2021
Sample: 668 bicycles with this information
Coverage: 86.3% of the class

Highest gear

87.0 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2021
Sample: 668 bicycles with this information
Coverage: 86.3% of the class

Shifting

Mechanical

144 of 774 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2021
Sample: 774 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.5 km/h
Highest gear: 33.3 km/h

Total gear range 510%

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: 17.1–87.0 gear inches
Class reference (p10–p90): 24.2–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2021
Lowest gear: 668 bicycles with this information, 86.3% of the class
Highest gear: 668 bicycles with this information, 86.3% 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.

Changes since 2020

Changes since 2020
Specification	2020 Trek 1120	This bicycle Trek 1120
Frame
Bicycle weight	14.11 kg	14.08 kg
Drivetrain
Rear sprockets	11	12
Smallest sprocket	11	10
Largest sprocket	46	51
Lowest gear	18.9 in	17.1 in
Highest gear	79.1 in	87.0 in
Other specifications
Tire clearance	Not informed	Maximum tire width: 3″