Polygon Collosus DH7 - Frameset
Polygon Collosus DH7 - Frameset

Details

DOWNHILL REBORN

DOWNHILL REBORN

After years of development, Polygon returns to the DH scene with the all-new Collosus DH—a bike that blends racing pedigree with bike park versatility. Born from the Collosus N enduro platform and refined over two full UCI Enduro World Cup seasons with Polygon's Factory Racing team, the DH is built for the rigors of racing and aggressive riding. Designed for riders who demand speed, adjustability, and reliability at full send.

IFS LINKAGE DESIGN

IFS LINKAGE DESIGN

Polygon’s 6-bar Independent Floating Suspension (IFS) delivers a highly tunable ride, separating wheel path and anti-squat from the leverage curve for precision performance. The result? Better control under braking, optimal cornering traction, and responsive support over repeated hits—whether sending gaps or charging through relentless rock gardens.

TUNE IT YOUR WAY

TUNE IT YOUR WAY

Versatility is at the core of the Collosus DH. With four geometry configurations and the option to run either a mixed wheel (MX) or full 29er setup, the bike lets riders tailor their ride to the terrain and their style. Seamlessly transition from playful park laps to full-on DH race runs—whether you want quick handling or straight-line speed, the Collosus DH adapts.

Model Year

2024 – Present

Colour Options

  • Metallic Black / Gold

Description

Engineered for World Cup DH tracks, high-speed bike park laps, and massive freeride features, the Polygon Collosus DH7 Frameset* is a relentless, 200mm travel downhill chassis. Constructed from heat-treated ALX heavy-duty aluminum with a carbon fiber upper linkage, this frame utilizes a high-pivot 6-bar floating suspension kinematics system to deliver maximum traction and smooth rearward axle path movement over violent hits. Featuring flip-chip adjustable geometry, mixed-wheel (Mullet 29" front / 27.5" rear) or full 29er compatibility, an 83mm threaded BSA bottom bracket, SRAM UDH rear dropouts, and 12x157mm DH axle spacing, it serves as an ultra-rugged foundation for an unyielding downhill race rig.

*Frame only without rear shock

Technical Specifications

  • Frame Material: ALX Downhill Hydroformed Aluminum Alloy with Carbon Upper Linkage

  • Rear Wheel Travel: 200mm

  • Wheel Size Compatibility: Mullet Configuration (29" Front / 27.5" Rear) or Full 29er via Flip-Chip

  • Recommended Rear Shock: Metric 250x75mm (M8x30mm hardware)

  • Rear Axle Spacing: 12x157mm DH Thru-Axle (SRAM UDH standard dropout)

  • Bottom Bracket Standard: 83mm Threaded BSA

  • Seatpost Diameter: 34.9mm

  • Headset Standard: Zero Stack (ZS 56/28.6 | ZS 56/30)

  • Chain Guide Standard: ISCG 05 Mounts

  • Brake Mount Standard: Post-Mount Hydraulic Disc (180mm direct / up to 203mm/220mm rotor max)

  • Cable Routing: Fully internal shift and rear brake line routing

  • Intended Use: Downhill (DH) Racing, Bike Park, and Extreme Freeride

Any questions? Chat to our friendly team
Geo



MX


LOW HIGH
Frame Size S M L XL S M L XL
Height (cm) 5'0"-5'5" 5'4"-5'9" 5'8"-6'1" 6'0"-6'5" 5'0"-5'5" 5'4"-5'9" 5'8"-6'1" 6'0"-6'5"
(A) Frame Stack 635 635 635 635 632 632 632 632
(B) Frame Reach 433 456 476 498 437 460 480 502
(C) Head Tube Angle 62.6° 62.6° 62.6° 62.6° 63° 63° 63° 63°
(D) Head Tube Length 105 105 105 105 105 105 105 105
(E) Seat Tube Angle 71.6° 71.6° 71.6° 71.6° 72° 72° 72° 72°
Effective Seat Tube Angle 78.1° 78.1° 78.1° 78.1° 78.5° 78.5° 78.5° 78.5°
(F) Seat Tube Length 390 390 390 390 390 390 390 390
(G) Effective Top Tube 558 581 601 623 557 580 600 622
(H) BB Height 350 350 350 350 356 356 356 356
(I) BB Drop F:30 R:11 F:30 R:11 F:30 R:11 F:30 R:11 F:24 R:6 F:24 R:6 F:24 R:6 F:24 R:6
(J) Chainstay Length 446 446 446 446 445 445 445 445
(K) Wheelbase 1251 1274 1294 1316 1250 1273 1293 1315
(L) Standover Height 813 813 813 813 817 817 817 817
Front Travel 203 203 203 203 203 203 203 203
Rear Travel 200 200 200 200 200 200 200 200
Maximum Chainring Size 36T 36T 36T 36T 36T 36T 36T 36T



29"


LOW HIGH
Frame Size S M L XL S M L XL
Height (cm) 5'0"-5'5" 5'4"-5'9" 5'8"-6'1" 6'0"-6'5" 5'0"-5'5" 5'4"-5'9" 5'8"-6'1" 6'0"-6'5"
(A) Frame Stack 634 634 634 634 631 631 631 635
(B) Frame Reach 435 458 478 500 439 462 482 504
(C) Head Tube Angle 62.8° 62.8° 62.8° 62.8° 63.2° 63.2° 63.2° 63.2°
(D) Head Tube Length 105 105 105 105 105 105 105 105
(E) Seat Tube Angle 71.8° 71.8° 71.8° 71.8° 72.2° 72.2° 72.2° 72.2°
Effective Seat Tube Angle 78.3° 78.3° 78.3° 78.3° 78.7° 78.7° 78.7° 78.7°
(F) Seat Tube Length 390 390 390 390 390 390 390 390
(G) Effective Top Tube 557 580 600 622 556 579 599 621
(H) BB Height 352 352 352 352 358 358 358 358
(I) BB Drop 27 27 27 27 22 22 22 22
(J) Chainstay Length 446 446 446 446 445 445 445 445
(K) Wheelbase 1253 1276 1296 1318 1252 1275 1295 1317
(L) Standover Height 815 815 815 815 819 819 819 819
Front Travel 203 203 203 203 203 203 203 203
Rear Travel 200 200 200 200 200 200 200 200
Maximum Chainring Size 36T 36T 36T 36T 36T 36T 36T 36T



Note: 29er - Our bikes do not come set up as full 29’’. You can change to 29er which will result in the following numbers.


* All lengths in mm