On-One Big Dog SRAM GX

Name: On-One Big Dog SRAM GX
Brand: On-One

2025 MountainCross-country Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £1,307 Last known price
Wheels: 29″
Drivetrain: 1 × 12 32t / 11–50t
Gear range: 455%
Frame: Steel
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

5 of 5 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.

Drivetrain

4 parts

Brakes

1 part

Brakes
- SRAM Guide R

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 446mm

Stack 619mm

Wheelbase 1206mm

Head angle 65.0°

Seat angle 75.0°

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	415	446	460	480
Stackmm	609	619	628	641
Top tube lengthmm	580	615	630	655
Seat tube lengthmm	380	420	460	500
Head tube lengthmm	100	110	120	135
Head tube angle	65°	65°	65°	65°
Seat tube angle	75°	75°	75°	75°
Chainstay lengthmm	444	444	444	444
Wheelbasemm	1169	1206	1223	1251
Front centermm	725	762	779	807
Bottom bracket dropmm	58	58	58	58
Bottom bracket heightmm	316	316	316	316
Fork rakemm	52	53	52	53
Trailmm	117	116	117	116
Stack/reach ratio	1.47	1.39	1.37	1.34

Not published by the manufacturer: Standover height, 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: Steel

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 50
Lowest gear: 18.6 in
Highest gear: 84.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Shifting: Mechanical

Additional specifications

Wheel size: 29″

Technical analysis

1 measure

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

Shifting

Mechanical

222 of 1,647 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2025
Sample: 1,647 bicycles with this information
Coverage: 95.9% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.1 km/h
Highest gear: 32.3 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: 18.6–84.4 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.

Changes since 2024

Changes since 2024
Specification	2024 On-One Big Dog SRAM GX	This bicycle On-One Big Dog SRAM GX
Suspension
Suspension configuration	Hardtail	Not informed
Front travel	130 mm	Not informed
Cockpit
Seatpost	Rigid seatpost	Not informed
Other specifications
Bottom bracket standard	BSA	Not informed
Fork spring	Air	Not informed
Suspension	Hardtail	Not informed
Tire width	2.35″	Not informed
Wheel material	Aluminum	Not informed