Collosus DH Series | Polygon Bikes

Downhill Demolition

The Return Of Dh Era.

You can never truly leave DH! We are back making waves in the biking world once again with the long-awaited release of our newest addition to the DH scene. Since the 2018 XQUARONE DH bike, we've been crafting and perfecting our latest offering, and now, we're thrilled to unveil the result of years of development, the Collosus DH. The Collosus DH was born from our Collosus N enduro bike which was tested extensively by the PFR team at EDR for two seasons. We realized the demand for something bigger, bolder, and more suited to the rigors of racing and aggressive riding. The Collosus DH has been meticulously designed with versatility in mind. With 4 different geometry configurations, riders can tailor their experience, seamlessly transitioning from playful park rides to dominating the downhill course.

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Features

Multiple setup possibilities

The Collosus DH offers 4 geometry configurations using two flip-chips. Riders can fine-tune the bottom bracket position for either a mullet setup with a 27.5” rear wheel or a full 29er configuration. When using a smaller rear wheel, set the flip chip in its tallest position to maintain rear center height. Switching to a 29” rear wheel allows the frame to drop down, ensuring a consistent riding position across wheel sizes.
Dial In Your Perfect Geometry

With a 1.5” headset, riders can further customize their ride by fitting aftermarket angle-adjust cups, dialing in the perfect geometry for their style and terrain.
No Compromise

Our innovative 6-bar independent floating suspension is engineered to control wheel path and anti-squat independently to the leverage curve, ensuring optimal performance across varied terrain.
UDH Compatibility for Next-Gen Shifting

With the UDH dropouts, the Collosus DH is now compatible with T-Type drivetrains for seamless integration with modern shifting systems.

Choose your series

Polygon Collosus DH9 Downhill Mountain Bike

COLLOSUS DH9 Compare

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Price

$4,999.00

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COLLOSUS DH7 Compare

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$3,499.00

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Build Specs

Kit	COLLOSUS DH9	COLLOSUS DH7
Frame	ALX DOWNHILL 200mm TRAVEL	ALX DOWNHILL 200mm TRAVEL
Fork	FOX 40 FACTORY SERIES KASHIMA COAT, AIR SPRING, TRAVEL:203mm, GRIP 2, HSC, LSC, HSR, LSR	ROCKSHOX BOXXER BASE, AIR SPRING, TRAVEL:200mm, CHARGER 3, COMPRESSION, REBOUND
Rear Shock	FOX FLOAT X2 FACTORY SERIES KASHIMA COAT, E2E: METRIC 250x75mm	ROCKSHOX VIVID BASE, E2E: METRIC 250x75mm
Shifter	SRAM X01 DH, 1x7-SPEED TRIGGER	SRAM GX DH, 1x7-SPEED TRIGGER
Crank Set	SRAM DESCENDANT DH, 34T	SRAM DESCENDANT DH, 34T
Cassette	SRAM PG720, 11-25T	SRAM PG720, 11-25T
Rear Derailleur	SRAM X01 DH	SRAM GX DH
Tire	SCHWALBE TACKY CHAN ADDIX SOFT FRONT: 29"x2.4" (622-62) ; REAR: 27.5"x2.4" (584-62)	SCHWALBE TACKY CHAN ADDIX SOFT FRONT: 29"x2.4" (622-62) ; REAR: 27.5"x2.4" (584-62)
Brake Lever	TRP DH-R EVO	TRP DH-R EVO
Brake Caliper	TRP DH-R EVO HYDRAULIC DISC	TRP DH-R EVO HYDRAULIC DISC
Rotor	TRP RS01E 203mm, 6BOLT	TRP RS01E 203mm, 6BOLT

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FAQ

Can both wheels be 27.5", or is the bike limited to mullet and full 29” setups?

The Collosus DH is designed for mullet (MX) or full 29” setups. A full 27.5” setup is not supported.
Is the bike compatible with a single crown fork?

Yes, if you use a 190mm travel fork.
Can I install a dropper post on this bike?

No, the bike is not designed to accommodate a dropper post.
What are the axle sizes?

Rear axle: 12 x 157mm DH (OLD).
Is the frame UDH-compatible?

Yes, the Collosus DH uses a UDH derailleur hanger, making it compatible with modern drivetrain systems.
What is the shock size and eye-to-eye measurement?

Shock size: 250mm x 75mm.
What type of rear suspension travel does the bike have?

The suspension system follows a progressive travel curve.
Can I use a coil shock on this bike?

Yes, the frame is compatible with all aftermarket coil shocks.
Do chainstay lengths vary by frame size?

No, the chainstay length is 445mm across all sizes.
What is the head tube size?

The bike features a 1.5” headset, allowing for further geometry adjustments with angle-adjust cups.