Details
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
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
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.
INDUSTRY REVIEW
“The Polygon Collosus DH stood out as the best value to performance DH bike in our test… This bike offers a plush ride that makes it feel like you’ve got more travel than the spec sheet says.” — The Loam Wolf
Specs
| frameset | |
|---|---|
| Frame | ALX Alloy Frame, 200mm travel, Mullet (29" F / 27.5" R), 157mm O.L.D., BSA 83mm threaded BB, Floating Suspension, Adjustable Geometry, Carbon Upper Linkage |
| Headset | FSA No.55R/57‑1 – ZS56/28.6 | ZS56/30, Semi‑Integrated, 1‑1/8" Threadless |
| suspension | |
| Fork | Fox Factory 40, Kashima Coat, Air Spring, 203mm Travel, Grip X2, HSC, LSC, HSR, LSR, 20x110mm Thru Axle |
| Shock | Fox Factory Float X2 – Air Spring, HSC, LSC, HSR, LSR, 250x75mm, M8x30mm For Both Sides |
| drivetrain | |
| Rear derailleur | SRAM X01 DH 7-Speed |
| Shifter | SRAM X01 DH 7-Speed |
| Crank | SRAM Descendant DH, Arm Length: 165mm (S, M, L, XL) |
| Chainring | 34T (Max 36T) |
| Cassette | SRAM PG720 7-Speed, 11-25T |
| Chain | KMC X11 |
| brakes | |
| Front brake | TRP DH-R EVO Hydraulic Disc Brake, 4-Piston Calipers |
| Rear brake | TRP DH-R EVO Hydraulic Disc Brake, 4-Piston Calipers |
| Rotor | TRP RS01E, 203mm, 6-bolt |
| wheels | |
| Front hub | DT-Swiss 240, Thru Axle, 20x110mm, 32H, 6B |
| Rear hub | DT-Swiss 240, Thru Axle, 12x157mm, 32H, 6B |
| Rim | DT Swiss FR-541, 32H, Front: DT-Swiss FR-541 (29), 32H, Rear: DT-Swiss FR-541 (27.5), 32H, Tubeless Compatible ** |
| Tyre | Schwalbe Tacky Chan Super Gravity, Addix Soft, Front: 29x2.4", Rear: 27.5x2.4", Tubeless Compatible ** |
| contact points | |
| Handlebar | Raceface Atlas 35, 820mm Width, Rise: 35mm, 8° Back-Sweep, Bar Bore: 35mm |
| Grips | Lock-on Grips |
| Saddle | Xtent, Steel ø 7mm |
| Seatpost | Polygon Expert 34.9mm, 320mm, Seatpost Clamp: 38.9mm |
| Stem | Raceface Atlas 35, 50mm Length, Bar Bore: 35mm |
| Pedals | Flat Alloy |
| weight | |
| Bike weight | 38.58 lbs |
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
Build
Assembly Videos - Dual Suspension MTB
Get ready to hit the road with your new bike! It’ll arrive almost ready to go, but you’ll need to do a quick setup first. Don’t worry, we’ve popped all the tools you’ll need right in the box.
If you’re a bike-building pro: You’ll be done in just 10-15 minutes.
Got a knack for fixing things? Give it 15-25 minutes.
New to the DIY world? Take your time, around 30-40 minutes, and you’ll get there!
Need some visual aids? We’ve got you covered! Just click on our step-by-step video guide below for a smooth setup. Happy cycling!
How To Unbox Your Dual Suspension MTB
How To Setup Your Suspension
Dial In Your Bike Fit
Dial In Your Tyre Pressures
Pre-Ride Check