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2025 Polygon

COLLOSUS DH7

A 29″ aluminum frame full suspension downhill bike with high-end components.
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Manufacturer Price

$3,499
FrameAluminum
SuspensionFull, 200 / 200mm
ForkRockShox BoXXer
ShockRockShox Vivid
Wheels29″ Aluminum
Drivetrain1 × 7
GroupsetTruvativ Descendant, GX
BrakesTRP DH-R EVO Hydraulic Disc
View on polygonbikes.comLearn about Polygon
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
COLLOSUS DH7
Other Downhill bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

27 mph

COLLOSUS DH7

26 mph

Similar Bikes

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full COLLOSUS model range

View Comparison
Sizing
SM

5'1" – 5'6"

MD

5'4" – 5'10"

LG

5'8" – 6'2"

XL

6'0" – 6'5"

Rider Fit Notes

None yet.

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Price History
Reviews

Summary

The Polygon Collosus is praised for its modern enduro geometry, providing a planted and stable ride that excels in high-speed descents and corners. It offers impressive value for money with solid build kits and efficient suspension that delivers good traction and pedal performance, though it is often noted as heavy, which can hinder playfulness and climbing agility. While the bike requires careful setup to optimize its potential, it is a capable choice for rough, gravity-focused trails.

Pros
  • Modern enduro geometry

  • Good value for money

  • Efficient suspension performance

  • Planted and stable handling

  • Solid build kit

Cons
  • Heavy weight

  • Requires careful setup

  • Limited playfulness

  • Draggy tires

  • High maintenance due to multiple pivots

Key Quotes
It dived in and out of a snaking section of steep, supported corners in a solid, predictable manner and the dimensions felt good.
Bikerumor logoBikerumor
Indeed it’s a bloody good enduro bike for the money, and one that is perfectly at home riding the roughest and rowdiest gravity-fuelled descents.
Flow Mountain Bike logoFlow Mountain Bike
Polygon once again delivered an impressive bike for the money.
Loam Wolf logoLoam Wolf

Feedback?

View all reviews

99 Spokes
Polygon Collosus N7 Review

Nov 2023

The Polygon Collosus N7 is the cheapest way to purchase in new enduro mountain bike in 2023. But does that mean it's worth buying? Spoiler Alert: It's for the park rats 🐀

Highs
  • Extremely affordable

  • Relatively solid spec given the price

  • Great performing suspension (one you set it up correctly)

  • Well rounded geometry

Lows
  • Weight (41 lbs / 18.6 kg tested)

  • Weak brakes

  • Minimal dropper post insertion

Read Review

NSMB
Polygon Collosus T9 DI2 First Impressions Review

May 2026

Polygon's premier trail rig has great handling and comes in at $3k+ cheaper than rival offerings.

Read Review

Pinkbike
The 2026 Polygon Collosus T Isn’t Perfect, But Holds Its Own Against Bikes Twice the Price

Dec 2025 · Mike Kazimer

There's room for refinement, but it fared well against expensive competition at our trail bike Field Test.

Highs
  • Great value

  • Very capable, punches above its weight

  • Lots of geometry adjustments

Lows
  • Noticeable frame flex

  • Flimsy in-frame storage door (supposed to be fixed in the future)

  • Finishing touches aren't as refined

Read Review

Bikerumor
Polygon’s New Collosus T Might Be the Best Value in Mountain Biking

Oct 2025 · Jeremy Benson

The latest from Polygon Bikes is the Collosus T, an aggressive new trail bike model that’s surprisingly affordable.

Read Review

Loam Wolf
Review: Polygon Collosus N8E

May 2024

If you’re working with a $5k budget and seek a capable and comfortable E-Enduro rig, then the Polygon Collosus N8E is a very solid offering.

Read Review

Flow Mountain Bike
2024 Polygon Collosus N7 Review | A big-hitting enduro bike with a bonkers price tag

Sep 2023

Selling for well under $4,000 AUD, the Polygon Collosus N7 is one of the cheapest enduro bikes going. But is it any good?

Highs
  • Incredible value for money

  • Smooth, traction-rich suspension

  • Impressive pedal efficiency

  • Great geometry

  • Solid build kit

Lows
  • Very heavy

  • Draggy tyres

  • Noisy

  • Limited seatpost insertion

  • Lots of pivots to maintain

Read Review

Top To Bottom MTB
2024 Polygon Collosus N9 - Build & Close Look!

Apr 2023

Today, we take a closer look at my brand NEW 2024 Polygon Collosus N9 enduro MTB. We go over all the components and all ...

Watch Review

Geometry
Specs
Build
Frame

aluminum

BB StandardBSA, 83mm, Threaded

ColorBlack Gold

Fork

ROCKSHOX BOXXER BASE, AIR SPRING, TRAVEL:200mm, CHARGER 3, COMPRESSION, REBOUND

Travel200mm

Spring TypeAir

Shock

ROCKSHOX VIVID BASE, E2E: METRIC 250x75mm

Travel200mm

Bottom Bracket

SRAM DUB BSA 83mm

Headset

FSA NO.55/57-1, ZS 56/28.6 | ZS 56/30

Stem

Raceface Atlas 35, 50mm Length, Bar Bore: 35mm

Handlebar

RACEFACE ATLAS 35, W: 820mm, BB: 35mm, R/D: 35mm, B: 8degree

Saddle

LINC XTENT

Seatpost

POLYGON EXPERT, DxL: 34,9 X 320mm

TypeRigid

Pedals

ALLOY W/ REPLACEABLE PIN

Grips

Lock-on Grips

Groupset
Rear Derailleur

SRAM GX DH

Crank

SRAM DESCENDANT DH, 34T

Shifters

SRAM GX DH, 1x7-SPEED TRIGGER

Cassette

SRAM PG720, 11-25T

Chain

KMC X11

Brakes

TRP DH-R EVO HYDRAULIC DISC

TypeTRP DH-R EVO Hydraulic Disc

Brake Levers

TRP DH-R EVO

Wheels
Rims

F: ALLOY RIM 622-29 32H / R: ALLOY RIM 584-29 32H

Spokes

F: SAPIM J-BEND NDS:290mm DS:294mm W/ 14Gx14MM BRASS NIPPLE / R: SAPIM J-BEND NDS:274mm DS:274mm W/ 14Gx14MM BRASS NIPPLE

Front Hub

NOVATEC 32H TA 20X110 6B

Rear Hub

NOVATEC 32H TA 12X157 6B FOR CASSETTE SPROCKET

Tires

SCHWALBE TACKY CHAN ADDIX SOFT FRONT: 29"x2.4" (622-62) ; REAR: 27.5"x2.4" (584-62)

Disc Rotors

TRP RS01E 203mm, 6BOLT

Rider Notes
Riders Also Viewed

First added April 8

Last updated June 1