BMC Fourstroke 01 LT ONE

Name: BMC Fourstroke 01 LT ONE
Brand: BMC

2021 MountainTrail Manufacturer page

BMC Fourstroke 01 LT ONE, color Gloss Carbon Prisma

Last known price: $7,999

Prices shown first for United States
Travel: 120 / 120 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 34t / 10–52t
Gear range: 520%
Weight: 11.32 kg 25.0 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

13 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, 120mm Travel, • Advanced Pivot System Suspension, • Fully Guided Internal Cable Routing, • Integrated Fork stopper, • 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 XX1 Eagle 12 speeds
Crankset
- SRAM S-650 Eagle 11 speeds 34t
S-650
Rear derailleur
- SRAM XX1 Eagle 12 speeds
Shifters
- SRAM GX Eagle Trigger 12 speeds

Brakes

1 part

Brakes
- SRAM Level TLM

Wheels and tires

4 parts

Front hub

CROSSMAX CARBONE XLR Not identified
Rear hub

CROSSMAX CARBONE XLR Not identified
Rims

CROSSMAX CARBON XLR 30mm Not identified
Tires
- Maxxis Rekon

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 440mm

Stack 596mm

Wheelbase 1155mm

Head angle 66.5°

Seat angle 74.8°

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	415	440	456	476
Stackmm	586	596	606	622
Top tube lengthmm	582	607	630	654
Seat tube lengthmm	420	440	480	510
Head tube lengthmm	96	107	117	134
Head tube angle	66.5°	66.5°	66.5°	66.5°
Seat tube angle	74.8°	74.8°	74.8°	74.8°
Chainstay lengthmm	429	429	429	429
Wheelbasemm	1129	1155	1180	1206
Front centermm	700	726	750	777
Bottom bracket dropmm	35	35	35	35
Bottom bracket heightmm	339	339	339	339
Standover heightmm	742	751	763	772
Fork rakemm	44	44	44	44
Trailmm	112.5	112.5	112.5	112.5
Stack/reach ratio	1.41	1.36	1.33	1.31
Suspension and parts
Crank lengthmm	170	175	175	175
Handlebar widthmm	760	760	760	760
Stem lengthmm	50	50	60	60
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: 11.32 kg

25.0 lb
Weight limit: 120 kg

264.6 lb

Suspension

Suspension configuration: Full suspension
Front travel: 120 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: 2.4″
Wheel material: Carbon
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

120 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 Fourstroke 01 LT ONE	BMC Fourstroke 01 LT TWO	BMC Fourstroke 01 ONE	BMC Fourstroke 01 Three	BMC Fourstroke 01 TWO
Frame
Bicycle weight	11.32 kg	12.08 kg	10.71 kg	12.04 kg	11.02 kg
Weight limit	120 kg	120 kg	110 kg	110 kg	110 kg
Suspension
Front travel	120 mm	120 mm	100 mm	100 mm	100 mm
Drivetrain
Largest sprocket	52	52	52	51	51
Lowest gear	19.0 in	19.0 in	19.0 in	19.3 in	19.3 in
Cockpit
Shifting	Mechanical	Mechanical	Electronic	Mechanical	Mechanical
Other specifications
Bottom bracket standard	BB86/BB92	BB86/BB92	BB86/BB92	BB86/BB92	BSA
Tire width	2.4″	2.4″	2.25″	2.25″	2.25″
Rear travel	120 mm	120 mm	100 mm	100 mm	100 mm
Wheel material	Carbon	Aluminum	Carbon	Aluminum	Aluminum