Cotic Solaris Trail / Gold XT Di2

2026 MountainTrail Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £4,697 Last known price
Fork travel: 130 mm
Wheels: 29″
Drivetrain: 1 × 12 30t / 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

12 of 12 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

1 part

Fork
- RockShox Pike Ultimate

Drivetrain

4 parts

Bottom bracket
- Shimano BB-MT801
BB-MT801
Cassette
- Shimano Deore XT CS-M8200 12 speeds
CS-M8200
Crankset
- Shimano Deore XT FC-M8200 12 speeds 30t
FC-M8200
Rear derailleur
- Shimano Deore XT RD-M8200 12 speeds
RD-M8200

Brakes

1 part

Brakes
- Shimano

Wheels and tires

2 parts

Cockpit and contact points

4 parts

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size C3

Table

Reach 470mm

Stack 634mm

Wheelbase 1215mm

Head angle 65.7°

Seat angle 74.7°

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 5 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	434	452	470	488	506
Stackmm	615	624	634	643	643
Top tube lengthmm	604	624	645	665	683
Seat tube lengthmm	390	417	444	471	495
Head tube lengthmm	100	110	120	130	130
Head tube angle	65.7°	65.7°	65.7°	65.7°	65.7°
Seat tube angle	74.7°	74.7°	74.7°	74.7°	74.7°
Chainstay lengthmm	444	444	444	444	444
Wheelbasemm	1171	1193	1215	1237	1255
Front centermm	735	757	779	801	819
Bottom bracket dropmm	67	67	67	67	67
Bottom bracket heightmm	307	307	307	307	307
Fork rakemm	46	46	46	46	46
Trailmm	119	119	119	119	119
Stack/reach ratio	1.42	1.38	1.35	1.32	1.27
Suspension and parts
Stem lengthmm	25	25	25	25	25

Not published by the manufacturer: 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: Hardtail
Front travel: 130 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 30
Largest chainring: 30
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 17.1 in
Highest gear: 87.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Electronic

Additional specifications

Bottom bracket standard: BSA
Fork spring: Air
Tire width: 2.4″
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

130 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2026
Sample: 1,640 bicycles with this information
Coverage: 96.3% of the class

Lowest gear

17.1 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2026
Sample: 1,227 bicycles with this information
Coverage: 72.0% of the class

Highest gear

87.0 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2026
Sample: 1,227 bicycles with this information
Coverage: 72.0% of the class

Shifting

Electronic

388 of 1,702 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2026
Sample: 1,702 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.5 km/h
Highest gear: 33.3 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: 17.1–87.0 gear inches
Class reference (p10–p90): 17.1–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2026
Lowest gear: 1227 bicycles with this information, 72.0% of the class
Highest gear: 1227 bicycles with this information, 72.0% 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 2026 builds
Specification	This bicycle Cotic Solaris Trail / Gold XT Di2	Cotic Solaris Bronze Deore	Cotic Solaris Downcountry / Gold Eagle 90	Cotic Solaris Downcountry / Gold XT	Cotic Solaris Downcountry / Gold XT Di2	Cotic Solaris Downcountry / Platinum X0 Transmission
Suspension
Front travel	130 mm	130 mm	120 mm	120 mm	120 mm	120 mm
Drivetrain
Smallest chainring	30	32	Not informed	32	28	Not informed
Largest chainring	30	32	Not informed	32	28	Not informed
Smallest sprocket	10	10	10	10	9	Not informed
Largest sprocket	51	51	52	51	45	Not informed
Lowest gear	17.1 in	18.2 in	Not informed	18.2 in	18.0 in	Not informed
Highest gear	87.0 in	92.8 in	Not informed	92.8 in	90.2 in	Not informed
Cockpit
Seatpost	Dropper seatpost	Rigid seatpost	Dropper seatpost	Dropper seatpost	Dropper seatpost	Dropper seatpost
Shifting	Electronic	Mechanical	Mechanical	Mechanical	Electronic	Electronic
Derailleur hanger	Not informed	Not informed	Not informed	Not informed	Not informed	UDH
Other specifications
Bottom bracket standard	BSA	Not informed	Not informed	BSA	BSA	Not informed
Fork spring	Air	Air	Not informed	Not informed	Not informed	Not informed