BULLS SIX50 + E FS 2

2018 MountainTrail Electric bicycle

Last known price: $3,999

Prices shown first for United States
Travel: 120 / 120 mm Fork / rear shock
Wheels: 27.5″
Drivetrain: 1 × 10 15t / 11–36t
Gear range: 327%
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

41cm
46cm
51cm

The manufacturer did not publish rider heights for these sizes.

Components

20 of 25 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

Aluminum Not identified

Electric system

3 parts

Suspension

3 parts

Drivetrain

7 parts

Cassette
- Shimano CS-HG50-10 10 speeds
CS-HG50-10CS-HG50
Chain
- KMC
Chain guide

Alloy bash guard Not identified
Crankset
- SR Suntour
Front derailleur

None
Rear derailleur
- Shimano RD-M781-GS
RD-M781-GSRD-M781
Shifters
- Shimano SLX
SL-M610

Brakes

2 parts

Brake levers
- Magura
Brakes
- Magura

Wheels and tires

5 parts

Cockpit and contact points

5 parts

Handlebar

STYX Not identified
Pedals
- Wellgo
Saddle
- Selle Royal On
Seatpost

STYX Not identified
Stem

STYX Not identified

Sizes and geometry

3 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 46cm

Table

Geometry diagram unavailable

The drawing needs wheelbase, which the manufacturer did not publish. Available facts remain in the table.

Size Reach Stack

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	392	412	432
Stackmm	617	617	617
Top tube lengthmm	575	595	615
Seat tube lengthmm	410	460	510
Head tube lengthmm	110	110	110
Head tube angle	69.5°	69.5°	69.5°
Seat tube angle	73.5°	73.5°	73.5°
Chainstay lengthmm	493.4	493.4	493.4
Bottom bracket dropmm	37.5	37.5	37.5
Bottom bracket heightmm	318	318	318
Standover heightmm	805	805	825
Stack/reach ratio	1.57	1.50	1.43

Not published by the manufacturer: Wheelbase, Front center, Fork rake, Trail, 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: Aluminum

Suspension

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

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 15
Largest chainring: 15
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 11.5 in
Highest gear: 37.5 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Battery: Bosch, 36V, 13.4Ah
Fork spring: Air
Wheel material: Aluminum
Wheel size: 27.5″

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: 2018
Sample: 925 bicycles with this information
Coverage: 98.6% of the class

Lowest gear

11.5 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2018
Sample: 845 bicycles with this information
Coverage: 90.0% of the class

Highest gear

37.5 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2018
Sample: 845 bicycles with this information
Coverage: 90.0% of the class

Shifting

Mechanical

25 of 938 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2018
Sample: 938 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 4.4 km/h
Highest gear: 14.4 km/h

Total gear range 327%

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: 11.5–37.5 gear inches
Class reference (p10–p90): 16.5–93.5 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2018
Lowest gear: 845 bicycles with this information, 90.0% of the class
Highest gear: 845 bicycles with this information, 90.0% 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 2018 builds

Differences across 2018 builds
Specification	This bicycle BULLS SIX50 + E FS 2	BULLS SIX50 + E FS 3	BULLS SIX50 EVO AM 2	BULLS SIX50 EVO AM 3	BULLS SIX50 EVO AM 4
Frame
Bicycle weight	Not informed	21.77 kg	Not informed	Not informed	Not informed
Suspension
Front travel	120 mm	150 mm	150 mm	150 mm	150 mm
Drivetrain
Rear sprockets	10	11	11	11	11
Largest sprocket	36	42	46	46	46
Lowest gear	11.5 in	9.8 in	9.0 in	9.0 in	9.0 in
Cockpit
Seatpost	Rigid seatpost	Rigid seatpost	Dropper seatpost	Dropper seatpost	Dropper seatpost
Other specifications
Battery	Bosch, 36V, 13.4Ah	Bosch, 36V, 13.4Ah	Bosch PowerTube, 36V, 13.4Ah	Bosch PowerTube, 36V, 13.4Ah	Bosch PowerTube, 36V, 13.4Ah
Fork spring	Air	Air	Not informed	Air	Air
Rear travel	120 mm	150 mm	150 mm	150 mm	150 mm
Tire width	Not informed	2.8″	2.8″	2.8″	2.6″