BULLS Copperhead Carbon S

2021 MountainCross-country Manufacturer page

BULLS Copperhead Carbon S, color Carbon Matt / Black

Price: Not published

Prices shown first for United States
Europe: €2,049 Last known price
Fork travel: 100 mm
Wheels: 27.5″
Drivetrain: 2 × 11 26–36t / 11–42t
Gear range: 529%
Weight: 10.7 kg 23.6 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Sizes

Size guide

41cm
44cm
48cm
54cm

The manufacturer did not publish rider heights for these sizes.

Components

17 of 20 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

Carbon Not identified

Suspension

1 part

Fork
- Fox 32

Drivetrain

7 parts

Bottom bracket

BSA, 73mm, threaded Not identified
Cassette
- Shimano SLX CS-M7000-11 11–42t
CS-M7000-11
Chain
- Shimano CN-HG601-11
CN-HG601-11
Crankset
- Shimano Deore XT FC-M8000-B2 11 speeds 36/26t
FC-M8000-B2
Front derailleur
- Shimano Deore XT FD-M8020
FD-M8020
Rear derailleur
- Shimano Deore XT RD-M8000-GS
RD-M8000-GS
Shifters
- Shimano Deore XT SL-M8000
SL-M8000

Brakes

1 part

Brakes
- Magura MT4

Wheels and tires

4 parts

Cockpit and contact points

6 parts

Handlebar
- Bulls
Headset

Tapered Not identified
Pedals
- Wellgo
Saddle
- Selle Royal
Seatpost
- Bulls
Stem
- Bulls

Sizes and geometry

4 sizes Open in the geometry plotter

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

Size 44cm

Table

Reach 417mm

Stack 601mm

Wheelbase 1092mm

Head angle 70.0°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	403	417	439	446
Stackmm	602	601	611	636
Top tube lengthmm	575	595	620	640
Seat tube lengthmm	410	440	480	540
Head tube lengthmm	100	105	115	145
Head tube angle	70°	70°	70°	70°
Seat tube angle	74°	73.5°	73.5°	73°
Chainstay lengthmm	420	425	425	430
Wheelbasemm	1071	1092	1118	1135
Front centermm	655	670	696	707
Bottom bracket dropmm	45	40	40	35
Bottom bracket heightmm	310	315	315	320
Fork rakemm	45	45	45	39
Trailmm	82	82	82	88
Stack/reach ratio	1.49	1.44	1.39	1.43

Not published by the manufacturer: Standover height, 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: Carbon
Bicycle weight: 10.7 kg

23.6 lb

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 26
Largest chainring: 36
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 17.0 in
Highest gear: 90.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
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

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

17.0 gear inches

This value is below 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

90.0 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: 6.5 km/h
Highest gear: 34.5 km/h

Total gear range 529%

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: 17.0–90.0 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 BULLS Copperhead Carbon S	BULLS Copperhead 1 27.5	BULLS Copperhead 1 29	BULLS Copperhead 2 27.5	BULLS Copperhead 2 29	BULLS Copperhead 2 Plus 27.5
Frame
Frame material	Carbon	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum
Bicycle weight	10.7 kg	15.2 kg	15.2 kg	14.4 kg	14.4 kg	14.3 kg
Drivetrain
Front chainrings	2	Not informed	Not informed	2	2	3
Smallest chainring	26	Not informed	Not informed	26	26	22
Largest chainring	36	Not informed	Not informed	36	36	40
Rear sprockets	11	10	10	10	11	Not informed
Largest sprocket	42	42	42	42	42	36
Lowest gear	17.0 in	Not informed	Not informed	17.0 in	18.0 in	16.8 in
Highest gear	90.0 in	Not informed	Not informed	90.0 in	94.9 in	100.0 in
Cockpit
Seatpost	Rigid seatpost	Not informed	Not informed	Not informed	Not informed	Rigid seatpost
Other specifications
Bottom bracket standard	BSA	Not informed	Not informed	Not informed	Not informed	BSA
Fork spring	Air	Coil	Coil	Coil	Not informed	Coil
Wheel size	27.5″	27.5″	29″	27.5″	29″	27.5″