BMC Fourstroke 01 TWO

Name: BMC Fourstroke 01 TWO
Brand: BMC

2021 MountainCross-country Manufacturer page

Last known price: $6,999

Prices shown first for United States
Travel: 100 / 100 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 34t / 10–51t
Gear range: 510%
Weight: 11.02 kg 24.3 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

Fourstroke 01 Premium Carbon with APS Suspension System, 100mm Travel, • Fully Guided Internal Cable Routing, • PF92 bottom bracket, • Post Mount Disc, • 12x148mm Boost Thru-Axle Not identified

Suspension

2 parts

Drivetrain

6 parts

Bottom bracket

BSA, 73mm, threaded Not identified
Cassette
- Shimano Deore XT 10–51t
Chain
- Shimano Deore XT
Crankset
- Shimano Deore XT 34t
Rear derailleur
- Shimano XTR RD-M9000
RD-M9000
Shifters
- Shimano Deore XT

Brakes

1 part

Brakes
- Shimano Deore XT
SM-RT86

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 445mm

Stack 590mm

Wheelbase 1155mm

Head angle 67.5°

Seat angle 75.6°

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	423	445	465	485
Stackmm	580	590	600	615
Top tube lengthmm	582	607	630	654
Seat tube lengthmm	420	440	480	510
Head tube lengthmm	96	107	117	134
Head tube angle	67.5°	67.5°	67.5°	67.5°
Seat tube angle	75.6°	75.6°	75.6°	75.6°
Chainstay lengthmm	429	429	429	429
Wheelbasemm	1129	1155	1180	1206
Front centermm	700	726	750	777
Bottom bracket dropmm	-66	44	44	44
Bottom bracket heightmm	440	330	330	330
Standover heightmm	738	747	759	768
Fork rakemm	44	44	44	44
Trailmm	106.5	106.5	106.5	106.5
Stack/reach ratio	1.37	1.33	1.29	1.27
Suspension and parts
Crank lengthmm	170	175	175	175
Handlebar widthmm	760	760	760	760
Stem lengthmm	50	60	60	70
Stem angle	-5°	-5°	-5°	-5°

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Bicycle weight: 11.02 kg

24.3 lb
Weight limit: 110 kg

242.5 lb

Suspension

Suspension configuration: Full suspension
Front travel: 100 mm
Rear travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 19.3 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: BSA
Fork spring: Air
Tire width: 2.25″
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

100 mm

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2021
Sample: 1,256 bicycles with this information
Coverage: 91.6% of the class

Lowest gear

19.3 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2021
Sample: 1,101 bicycles with this information
Coverage: 80.3% of the class

Highest gear

98.6 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2021
Sample: 1,101 bicycles with this information
Coverage: 80.3% of the class

Shifting

Mechanical

89 of 1,368 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2021
Sample: 1,368 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.4 km/h
Highest gear: 37.8 km/h

Total gear range 510%

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: 19.3–98.6 gear inches
Class reference (p10–p90): 17.4–100.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2021
Lowest gear: 1101 bicycles with this information, 80.3% of the class
Highest gear: 1101 bicycles with this information, 80.3% 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
Specification	This bicycle BMC Fourstroke 01 TWO	BMC Fourstroke 01 LT ONE	BMC Fourstroke 01 LT TWO	BMC Fourstroke 01 ONE	BMC Fourstroke 01 Three
Frame
Bicycle weight	11.02 kg	11.32 kg	12.08 kg	10.71 kg	12.04 kg
Weight limit	110 kg	120 kg	120 kg	110 kg	110 kg
Suspension
Front travel	100 mm	120 mm	120 mm	100 mm	100 mm
Drivetrain
Largest sprocket	51	52	52	52	51
Lowest gear	19.3 in	19.0 in	19.0 in	19.0 in	19.3 in
Cockpit
Shifting	Mechanical	Mechanical	Mechanical	Electronic	Mechanical
Other specifications
Bottom bracket standard	BSA	BB86/BB92	BB86/BB92	BB86/BB92	BB86/BB92
Tire width	2.25″	2.4″	2.4″	2.25″	2.25″
Rear travel	100 mm	120 mm	120 mm	100 mm	100 mm
Wheel material	Aluminum	Carbon	Aluminum	Carbon	Aluminum

Changes since 2020
Specification	2020 BMC Fourstroke 01 TWO	This bicycle BMC Fourstroke 01 TWO
Frame
Bicycle weight	10.39 kg	11.02 kg
Frame material	Not informed	Carbon
Weight limit	Not informed	110 kg
Drivetrain
Largest sprocket	50	51
Lowest gear	19.7 in	19.3 in
Other specifications
Bottom bracket standard	BB86/BB92	BSA