Cotic RocketMAX Mullet / Gold XT

2025 MountainEnduro Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £6,369 Last known price
Travel: 170 / 160 mm Fork / rear shock
Wheels: 29″ / 27.5″
Drivetrain: 1 × 12 32t / 10–51t
Gear range: 510%
Frame: Steel
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

C1 162–172
C2 170–178
C3 176–184
C4 182–190
C5 184–195

Components

11 of 13 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.

Suspension

2 parts

Drivetrain

4 parts

Bottom bracket
- Shimano BB-MT801
BB-MT801
Cassette

SLX 12spd 10-51 Cassette Not identified
Crankset
- Shimano Deore XT FC-M8100 12 speeds 32t
FC-M8100
Rear derailleur
- Shimano Deore XT RD-M8100 12 speeds
RD-M8100

Brakes

1 part

Brakes
- Magura

Wheels and tires

2 parts

Cockpit and contact points

4 parts

Handlebar
- Cotic
Headset

Works 1 Degree EC44/EC44 Angle Headset for Mullet Not identified
Seatpost
- SDG Tellis V2 Dropper Post
Stem
- Cotic

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size C3

Table

Geometry diagram unavailable

Diagrams for different front and rear wheel sizes are not available yet. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	435	451	473	492	511
Stackmm	638	647	656	665	665
Top tube lengthmm	599	621	639	660	679
Seat tube lengthmm	390	417	444	471	496
Head tube lengthmm	100	110	120	130	130
Head tube angle	63.5°	63.5°	63.5°	63.5°	63.5°
Seat tube angle	74.8°	74.8°	75.2°	75.2°	75.2°
Chainstay lengthmm	448	448	448	448	448
Wheelbasemm	1233	1257	1279	1303	1322
Front centermm	787	811	833	857	876
Bottom bracket dropmm	32	32	32	32	32
Fork rakemm	44	47	43	43	43
Trailmm	138	134	139	139	139
Stack/reach ratio	1.47	1.44	1.39	1.35	1.30
Suspension and parts
Stem lengthmm	25	25	25	25	25

Not published by the manufacturer: Bottom bracket height, Standover height, Front travel, Rear travel, Crank length, Handlebar width, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Steel

Suspension

Suspension configuration: Full suspension
Front travel: 170 mm
Rear travel: 160 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 17.3 in
Highest gear: 88.0 in

Wheels and brakes

Wheel configuration: Different sizes
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Fork spring: Air
Tire width: 2.5″
Wheel material: Aluminum
Wheel size: 29″, 27.5″

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

170 mm

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2025
Sample: 1,419 bicycles with this information
Coverage: 97.5% of the class

Rear travel

160 mm

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2025
Sample: 1,106 bicycles with this information
Coverage: 76.0% of the class

Shifting

Mechanical

477 of 1,455 bicycles with this information use electronic shifting.

Cohort: Mountain / Enduro Model year: 2025
Sample: 1,455 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.6 km/h
Highest gear: 33.7 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: 17.3–88.0 gear inches

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 2025 builds
Specification	This bicycle Cotic RocketMAX Mullet / Gold XT	Cotic RocketMAX Bronze Deore	Cotic RocketMAX Enduro / Gold XT	Cotic RocketMAX Enduro / Silver SLX	Cotic RocketMAX Trail / Silver SLX
Suspension
Front travel	170 mm	170 mm	170 mm	170 mm	160 mm
Rear travel	160 mm	155 mm	160 mm	160 mm	155 mm
Drivetrain
Lowest gear	17.3 in	18.2 in	18.2 in	18.2 in	18.2 in
Highest gear	88.0 in	92.8 in	92.8 in	92.8 in	92.8 in
Wheels
Wheel configuration	Different sizes	Same size	Same size	Same size	Same size
Other specifications
Bottom bracket standard	BSA	Not informed	BSA	BSA	BSA
Tire width	2.5″	2.6″	2.5″	2.5″	2.5″
Wheel size	29″ / 27.5″	29″	29″	29″	29″