Trek Roscoe 6

Name: Trek Roscoe 6
Brand: Trek

2025 MountainTrail Manufacturer page

Fork travel: 140 mm
Wheels: 27.5″, 29″
Drivetrain: 1 × 9 28t / 11–46t
Gear range: 418%
Weight: 14.4 kg 31.7 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 145–156
SM 154–166
MD 164–176
MD/LG 173–180
LG 177–189
XL 187–195

Components

19 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

Alpha Gold Aluminum, tapered head tube, internal derailleur & dropper post routing, ISCG 05, threaded BB, Boost148, 12mm thru axle Not identified

Suspension

1 part

Fork
- SR Suntour XCR34

Drivetrain

5 parts

Bottom bracket
- Shimano
Cassette
- Shimano CS-LG300
CS-LG300
Chain
- Shimano CN-LG500
CN-LG500
Crankset
- FSA 28t
Rear derailleur
- Shimano Cues RD-U4000 9 speeds
RD-U4000

Brakes

2 parts

Wheels and tires

4 parts

Cockpit and contact points

7 parts

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 440mm

Stack 635mm

Wheelbase 1181mm

Head angle 65.0°

Seat angle 74.7°

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 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	390	415	440	455	470	495
Stackmm	591	626	635	639	644	666
Top tube lengthmm	552	586	614	630	646	677
Seat tube lengthmm	340	360	420	435	450	500
Head tube lengthmm	90	90	100	105	110	135
Head tube angle	65°	65°	65°	65°	65°	65°
Seat tube angle	74.7°	74.7°	74.7°	74.7°	74.7°	74.7°
Chainstay lengthmm	430	430	430	430	430	430
Wheelbasemm	1120	1151	1181	1198	1215	1250
Front centermm	694	728	758	775	792	827
Bottom bracket dropmm	45	61	61	61	61	61
Bottom bracket heightmm	310	313	313	313	313	313
Standover heightmm	729	741	748	742	755	765
Fork rakemm	43	42	43	43	43	43
Trailmm	122	131	131	131	131	131
Stack/reach ratio	1.52	1.51	1.44	1.40	1.37	1.35

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
Bicycle weight: 14.4 kg

31.7 lb
Weight limit: 136 kg

299.8 lb

Suspension

Suspension configuration: Hardtail
Front travel: 140 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 28
Largest chainring: 28
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 46
Lowest gear: 17.7 in
Highest gear: 73.8 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: BSA
Fork spring: Air
Tire clearance: Maximum tire width: 2.6″
Tire width: 2.6″
Wheel material: Aluminum
Wheel size: 27.5″, 29″

Technical analysis

4 measures

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

Front travel

140 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,810 bicycles with this information
Coverage: 97.5% of the class

Lowest gear

17.7 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,384 bicycles with this information
Coverage: 74.6% of the class

Highest gear

73.8 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,384 bicycles with this information
Coverage: 74.6% of the class

Shifting

Mechanical

388 of 1,849 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2025
Sample: 1,849 bicycles with this information
Coverage: 99.6% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.8 km/h
Highest gear: 28.3 km/h

Total gear range 418%

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: 17.7–73.8 gear inches
Class reference (p10–p90): 17.1–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2025
Lowest gear: 1384 bicycles with this information, 74.6% of the class
Highest gear: 1384 bicycles with this information, 74.6% 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
Specification	This bicycle Trek Roscoe 6	Trek Roscoe 7
Frame
Bicycle weight	14.4 kg	14.14 kg
Drivetrain
Smallest chainring	28	30
Largest chainring	28	30
Rear sprockets	9	12
Smallest sprocket	11	10
Largest sprocket	46	51
Lowest gear	17.7 in	17.1 in
Highest gear	73.8 in	87.0 in