BMC Speedfox ONE

Name: BMC Speedfox ONE
Brand: BMC

2021 MountainTrail Manufacturer page

BMC Speedfox ONE, color Steel Blue & Neon Red

Last known price: $5,299

Prices shown first for United States
Travel: 130 / 120 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 34t / 10–52t
Gear range: 520%
Weight: 13.16 kg 29.0 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM Not informed
MD 171–182
LG 180–189
XL 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 Premium Carbon (front), Premium Aluminium (rear), 120mm Travel, • Advanced Pivot System Suspension, • Internal Cable Routing, • Integrated Chain Guide, • PF92 bottom bracket, • 12x148mm thru-axle Not identified

Suspension

2 parts

Drivetrain

6 parts

Bottom bracket

BB86/BB92, press-fit Not identified
Cassette
- SRAM 10–52t
Chain
- SRAM GX Eagle 12 speeds
Crankset
- SRAM S-650 Eagle 11 speeds 34t
S-650
Rear derailleur
- SRAM GX Eagle 12 speeds
Shifters
- SRAM GX Eagle Trigger 12 speeds

Brakes

1 part

Brakes
- Shimano SLX
SM-RT66

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 MD

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
Standover heightmm	713	734	752	773
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	750	750	750	750
Stem lengthmm	50	60	60	70
Stem angle	-5°	-5°	-5°	-5°
Seatpost lengthmm	377	447	447	447

Not published by the manufacturer: Front travel, Rear travel and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Bicycle weight: 13.16 kg

29.0 lb
Weight limit: 120 kg

264.6 lb

Suspension

Suspension configuration: Full suspension
Front travel: 130 mm
Rear travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 52
Lowest gear: 19.0 in
Highest gear: 98.6 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
Fork spring: Air
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: 2021
Sample: 1,325 bicycles with this information
Coverage: 98.1% of the class

Lowest gear

19.0 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,138 bicycles with this information
Coverage: 84.2% of the class

Highest gear

98.6 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,138 bicycles with this information
Coverage: 84.2% of the class

Shifting

Mechanical

53 of 1,347 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,347 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.3 km/h
Highest gear: 37.8 km/h

Total gear range 520%

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: 19.0–98.6 gear inches
Class reference (p10–p90): 16.9–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2021
Lowest gear: 1138 bicycles with this information, 84.2% of the class
Highest gear: 1138 bicycles with this information, 84.2% 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 2021 builds

Differences across 2021 builds
Specification	This bicycle BMC Speedfox ONE	BMC Speedfox AL ONE	BMC Speedfox AL TWO	BMC Speedfox TWO
Frame
Frame material	Carbon	Aluminum	Aluminum	Carbon
Bicycle weight	13.16 kg	14.89 kg	14.99 kg	14.08 kg
Drivetrain
Smallest chainring	34	30	30	34
Largest chainring	34	30	30	34
Smallest sprocket	10	11	Not informed	11
Largest sprocket	52	50	Not informed	50
Lowest gear	19.0 in	17.4 in	Not informed	19.7 in
Highest gear	98.6 in	79.1 in	Not informed	89.6 in
Other specifications
Bottom bracket standard	BB86/BB92	BSA	BSA	BB86/BB92