Devinci Marshall 27.5 SX 12s

2025 YouthGeneral youth Manufacturer page

Devinci Marshall 27.5 SX 12s, color Cavalry Blue Gloss

Travel: 140 / 130 mm Fork / rear shock
Wheels: 27.5″
Drivetrain: 1 × 12 30t / 11–50t
Gear range: 455%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS Low 150–162
SM Low 159–171
MD Low 168–180
LG Low 177–189
XL Low 186–198

Components

19 of 22 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

Aluminum Optimum G04 130mm Not identified

Suspension

2 parts

Drivetrain

6 parts

Brakes

2 parts

Wheels and tires

5 parts

Cockpit and contact points

6 parts

Grips
- Devinci
Handlebar

V2 Pro | B:35mm | R:15mm | W:780mm Not identified
Headset
- FSA ORBIT IS 138
Saddle
- Devinci
Seatpost
- Tranz-X
Stem

V2 Pro | B:35mm | L:50mm | 0° Not identified

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD Low

Table

Reach 460mm

Stack 621mm

Wheelbase 1203mm

Head angle 66.5°

Seat angle 77.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ wheel; exact published values are in the table below. Bottom bracket drop is derived from the published bottom bracket height.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	420	440	460	480	500
Stackmm	575	585	621	630	639
Top tube lengthmm	555	579	603	626	650
Seat tube lengthmm	370	400	420	445	495
Head tube lengthmm	95	105	105	115	125
Head tube angle	66.5°	66.5°	66.5°	66.5°	66.5°
Seat tube angle	76.8°	76.7°	77°	76.9°	76.8°
Chainstay lengthmm	430	430	435	435	435
Wheelbasemm	1143	1167	1203	1227	1251
Bottom bracket heightmm	337	337	337	337	337
Standover heightmm	717	744	749	767	797
Stack/reach ratio	1.37	1.33	1.35	1.31	1.28

Not published by the manufacturer: Front center, Bottom bracket drop, Fork rake, Trail, 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

Suspension

Suspension configuration: Full suspension
Front travel: 140 mm
Rear travel: 130 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 30
Largest chainring: 30
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 50
Lowest gear: 16.5 in
Highest gear: 75.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Air
Tire width: 2.5″
Wheel material: Aluminum
Wheel size: 27.5″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.3 km/h
Highest gear: 28.7 km/h

Total gear range 455%

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: 16.5–75.0 gear inches

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 Devinci Marshall 27.5 SX 12s	Devinci Marshall 27.5 Deore 12s	Devinci Marshall 29 Deore 12s	Devinci Marshall 29 SX 12s
Drivetrain
Smallest chainring	30	32	32	30
Largest chainring	30	32	32	30
Smallest sprocket	11	10	10	11
Largest sprocket	50	51	51	50
Lowest gear	16.5 in	17.3 in	18.2 in	17.4 in
Highest gear	75.0 in	88.0 in	92.8 in	79.1 in
Other specifications
Fork spring	Air	Air	Not informed	Not informed
Wheel size	27.5″	27.5″	29″	29″
Bottom bracket standard	Not informed	BSA	BSA	Not informed