Polygon Collosus DH7

2026 MountainDownhill Manufacturer page

Last known price: $3,499

Prices shown first for United States
Fork travel: 200 mm
Wheels: 29″
Drivetrain: 1 × 7 34t / 11–25t
Gear range: 227%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 155–166
MD 164–176
LG 174–186
XL 184–195

Components

18 of 22 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

Suspension

2 parts

Drivetrain

6 parts

Brakes

3 parts

Brake levers
- TRP
Brakes
- TRP
Disc rotors
- TRP RS01E

Wheels and tires

5 parts

Front hub
- Novatec
Rear hub
- Novatec
Rims

F: ALLOY RIM 622-29 32H / R: ALLOY RIM 584-29 32H Not identified
Spokes
- Sapim
Tires
- Schwalbe Tacky Chan

Cockpit and contact points

5 parts

Handlebar
- Race Face Atlas 35
Headset
- FSA NO.55
Pedals

ALLOY W/ REPLACEABLE PIN Not identified
Saddle

LINC XTENT Not identified
Seatpost
- Polygon

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 460mm

Stack 632mm

Wheelbase 1273mm

Head angle 63.0°

Seat angle 78.5°

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
Reachmm	437	460	480	502
Stackmm	632	632	632	632
Top tube lengthmm	557	580	600	622
Seat tube lengthmm	390	390	390	390
Head tube lengthmm	105	105	105	105
Head tube angle	63°	63°	63°	63°
Seat tube angle	78.5°	78.5°	78.5°	78.5°
Chainstay lengthmm	445	445	445	445
Wheelbasemm	1250	1273	1293	1315
Front centermm	806	829	849	871
Bottom bracket dropmm	24	24	24	24
Bottom bracket heightmm	356	356	356	356
Standover heightmm	817	817	817	817
Fork rakemm	52	52	52	52
Trailmm	132	132	132	132
Stack/reach ratio	1.45	1.37	1.32	1.26

Not published by the manufacturer: 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: 200 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 7
Smallest sprocket: 11
Largest sprocket: 25
Lowest gear: 39.4 in
Highest gear: 89.6 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
Tire width: 2.4″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

1 measure

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

Front travel

200 mm

This value is within the central range for this class.

Cohort: Mountain / Downhill Model year: 2026
Sample: 107 bicycles with this information
Coverage: 96.3% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 15.1 km/h
Highest gear: 34.3 km/h

Total gear range 227%

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: 39.4–89.6 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 2026 builds
Specification	This bicycle Polygon Collosus DH7	Polygon Collosus DH9	Polygon Collosus N7	Polygon Collosus N8	Polygon Collosus N8 Carbon	Polygon Collosus N9
Frame
Frame material	Aluminum	Aluminum	Aluminum	Carbon	Aluminum	Aluminum
Suspension
Front travel	200 mm	203 mm	170 mm	Not informed	170 mm	170 mm
Rear travel	Not informed	Not informed	Not informed	Not informed	170 mm	170 mm
Drivetrain
Front chainrings	1	1	1	Not informed	1	1
Smallest chainring	34	34	32	Not informed	32	32
Largest chainring	34	34	32	Not informed	32	32
Rear sprockets	7	7	12	Not informed	12	12
Smallest sprocket	11	11	10	Not informed	10	10
Largest sprocket	25	25	51	Not informed	52	51
Lowest gear	39.4 in	39.4 in	18.2 in	Not informed	17.9 in	18.2 in
Highest gear	89.6 in	89.6 in	92.8 in	Not informed	92.8 in	92.8 in
Cockpit
Seatpost	Rigid seatpost	Rigid seatpost	Dropper seatpost	Not informed	Dropper seatpost	Dropper seatpost
Derailleur hanger	Not informed	Not informed	Not informed	UDH	UDH	UDH
Other specifications
Fork spring	Air	Air	Air	Not informed	Air	Air
Tire width	2.4″	2.4″	2.5″	Not informed	2.5″	2.5″
Wheel material	Aluminum	Aluminum	Aluminum	Not informed	Aluminum	Aluminum
Tire clearance	Not informed	Not informed	Not informed	Not informed	Maximum tire width: 2.6″	Maximum tire width: 2.6″