BMC Speedfox 03 ONE

Name: BMC Speedfox 03 ONE
Brand: BMC

2020 MountainTrail Manufacturer page

Last known price: $2,899

Prices shown first for United States
Travel: 130 / 120 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 30t / 11–50t
Gear range: 455%
Weight: 14.87 kg 32.8 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

S29 Not informed
M29 171–182
L29 180–189
XL29 187+

Components

16 of 18 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

Speedfox 03 - Advanced Pivot System, BSA 73mm Bottom Bracket, 12 x 148mm Thru-axle, 120mm Travel Not identified

Suspension

2 parts

Drivetrain

6 parts

Bottom bracket

BSA, 73mm, threaded Not identified
Cassette
- SRAM 11–50t
Chain
- SRAM NX Eagle 12 speeds
Crankset
- Truvativ Stylo 30t
Rear derailleur
- SRAM NX Eagle 12 speeds
Shifters
- SRAM NX Eagle Trigger 12 speeds

Brakes

1 part

Brakes
- Shimano BR-MT500
BR-MT500

Wheels and tires

4 parts

Cockpit and contact points

4 parts

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size M29

Table

Reach 430mm

Stack 610mm

Wheelbase 1145mm

Head angle 68.0°

Seat angle 73.8°

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
Frame
Reachmm	408	430	450	465
Stackmm	600	610	620	635
Top tube lengthmm	587	611	634	653
Seat tube lengthmm	420	440	480	510
Head tube lengthmm	95	105	115	135
Head tube angle	68°	68°	68°	68°
Seat tube angle	73.75°	73.75°	73.75°	73.75°
Chainstay lengthmm	445	445	445	445
Wheelbasemm	1123	1145	1169	1189
Front centermm	677	704	728	748
Bottom bracket dropmm	37	37	37	37
Bottom bracket heightmm	337	337	337	337
Fork rakemm	51	51	51	51
Trailmm	90	90	90	90
Stack/reach ratio	1.47	1.42	1.38	1.37
Suspension and parts
Crank lengthmm	170	175	175	175
Handlebar widthmm	760	760	760	760
Stem lengthmm	45	55	55	55

Not published by the manufacturer: Standover height, Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 14.87 kg

32.8 lb

Suspension

Suspension configuration: Full suspension
Front travel: 130 mm
Rear travel: 120 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: 17.4 in
Highest gear: 79.1 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
Tire width: 2.35″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 measures

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

Front travel

130 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2020
Sample: 1,348 bicycles with this information
Coverage: 93.8% of the class

Lowest gear

17.4 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2020
Sample: 1,217 bicycles with this information
Coverage: 84.6% of the class

Highest gear

79.1 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2020
Sample: 1,217 bicycles with this information
Coverage: 84.6% of the class

Shifting

Mechanical

55 of 1,437 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2020
Sample: 1,437 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.7 km/h
Highest gear: 30.3 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: 17.4–79.1 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: 2020
Lowest gear: 1217 bicycles with this information, 84.6% of the class
Highest gear: 1217 bicycles with this information, 84.6% 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 2020 builds
Specification	This bicycle BMC Speedfox 03 ONE	BMC Speedfox 02 TWO	BMC Speedfox 03 TWO
Frame
Bicycle weight	14.87 kg	13.3 kg	14.75 kg
Cockpit
Seatpost	Dropper seatpost	Dropper seatpost	Rigid seatpost
Other specifications
Bottom bracket standard	BSA	BB86/BB92	BSA
Fork spring	Not informed	Air	Coil