Polygon Collosus DH9 Dual Suspension Downhill Mountain Bike


Contact us for special order. Lead time is typically 2 to 3 weeks.

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The New Collosus DH9 is upgraded with a new longer front end, lengthened wheelbase, and using a new carbon upper linkage design. Proven to be one of the burliest DH bikes of 2017, this bike cannonballed its way to numerous podium positions throughout the UCI World Cup Downhill Season including Gold and Silver medals at the World Champs in Cairns by our home grown Aussie UR riders, Tracey Hannah and Mick Hannah. This bike also helped Kurt Sorge take out the crown at Red Bull Rampage in 2015 and 2017.

The DH9 features 203 mm of smooth, bottomless travel, 27.5” wheels, and an ALX aluminum front triangle paired to an ACX Advanced Carbon swingarm.

Polygon uses a floating shock design in the DH9 to provide 8” of rear wheel travel. The rear shock is floating between the front linkage and the rear linkage to keep pedal and brake feedback to a minimum. The floating rear shock gives the DH9 the ability to soak up anything from high frequency bumps to big hits with ease. There is a new flip chip in the rear shock mount that will lower or raise the bottom bracket height to accommodate 26” wheels if needed as well as give 27.5” riders the opportunity to adjust their geometry.

This bike comes equipped with a full Shimano Saint 10 speed groupset, Fox 40 Factory Float front fork, Fox Factory Float X2 rear shock, and an E13 LG1+ wheelset.

Check out the below video for more info:




Magazine Reviews

Check out the review of the Colossus DH9 on Flow Mountain Bike Australia here: http://flowmountainbike.com/tests/tested-polygon-collosus-dh9-2016/

Check out the review of the Colossus DH9 on Pink Bike here: http://www.pinkbike.com/news/first-look-polygon-collosus-dh9-2015.html

Check out the review of the Colossus DH9 on VitalMTB here: http://www.vitalmtb.com/product/feature/First-Look-2016-Polygon-Collosus-DH9,355

Key Features

  • ALX Hydroformed Downhill Floating Suspension Frame with ACX Advanced Carbon rear triangle - 203mm travel
  • Full Shimano Saint 820 groupset
  • Fox 40 Float Factory front fork w/ Kashima Coat
  • Fox Float X2 Factory rear shock
  • Race Face Atlas handlebar and stem
  • Race Face Atlas saddle
  • E13 LG1R wheelset
  • Schwalbe Magic Mary 27.5 X 2.5” TL-Ready tyres
  • 5 Year Warranty on frame
  • Full manufacturer’s warranty on parts



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Comparison 2018 COLLOSUS DH9 2018 Giant Glory Advanced 0 Comments
FRAME Hydroformed ALX DH frame with low center 203mm fully active suspension, ACX Advanced Carbon rear triangle and Carbon upper linkage Advanced Composite with ALUXX Aluminum rear triangle, 8"/200mm Maestro suspension Similar
FORK Fox 40 Float Factory W/ Kashima Coat RockShox Boxxer Team, 200mm travel Polygon better
REAR SHOCK Fox Float Factory X2  RockShox Vivid R2C Polygon better
HANDLEBAR Race Face Atlas 35, Alloy, 800mm Giant Contact SLR DH, Carbon, 31.8mm Giant composite
STEM Race Face Atlas DM35, 50mm Truvativ Descendant Similar
SADDLE Race Face Atlas Giant Contact SL Forward Polygon better
SEATPOST Race Face Chester, 30.9mm Giant Contact SL, 30.9mm Polygon better
CRANKSET Race Face Atlas 36T, 165mm SRAM X01 DH, Carbon, 34T Giant better
BOTTOM BRACKET Race Face BSA for 83mm BB shell SRAM GXP  Similar
CHAIN Shimano Deore XT CN-HG95 KMC X11 SL DLC Similar
CASSETTE Shimano CS-5700 11-25T SRAM XG 795 DH, 10-24T, 7sp Similar
SHIFTING LEVER Shimano Saint SL-M820 SRAM X01 DH trigger Similar
BRAKE Shimano Saint with 203mm 6-bolt Ice-Tech Rotors SRAM Guide Ultimate hydraulic, Fr: 200mm Rr: 180mm Similar
TYRE Schwalbe Magic Mary 27.5 X 2.5”  Maxxis Minion 27.5x2.35" Similar
WHEEL SET E13 LG1+  DT Swiss EX471 w/ DT Swiss 240 hubs Similar
Price $5,799 $8,499 $1,700 difference
Size Chart





RIDER HEIGHT 155-165cm 165-175cm 175-185cm 185-195cm
SEAT TUBE LENGTH 15" 16" 17" 18"


Note: If you are in between sizes, measure your wingspan. If it is greater than your height, go for the frame size up. If your height is greater than your wingspan, go for a frame size down.



Sizes (A) Stack (mm) (B) Reach (mm) (C) Head Tube Angle (D) Head Tube Length (mm) (E) Head Tube Diameter (mm) (F) Seat Tube Angle (G) Seat Tube Length (C-T) (mm) (H) Top Tube Actual (mm) (I) Top Tube Effective (mm) (J) Front Center (mm) (L) Rear Center (mm) (M) BB Height (Ground Clerance) (mm) (N) BB Height (BB Drop/Rise) (O) Stand Over Height (mm) (P) Rear Wheel Axle / O.L.D (mm) (Q) Seatpost Size (mm)
15 (S) Low BB 595.1 377.6 62.8 110 Tapered 50/44~62/56 62.8 383 476.8 536 743.3 442.8 361.4 2.9 Rise 725.1 12 x 157 30.9
15 (S) Hi BB 593.4 380.3 63.1 110 Tapered 50/44~62/56 63.1 383 476.8 534.8 743.3 441.5 364.7 6.2 Rise 728.5 12 x 157 30.9
15 (M) Low BB 595.1 397.6 62.8 110 Tapered 50/44~62/56 62.8 383 494.8 556 763.1 442.8 361.4 2.9 Rise 724.8 12 x 157 30.9
15 (M) Hi BB 593.4 400.3 63.1 110 Tapered 50/44~62/56 63.1 383 494.8 554.8 763.3 441.5 364.7 6.2 Rise 728.3 12 x 157 30.9
15 (L) Low BB 595.1 425.3 62.8 110 Tapered 50/44~62/56 62.8 383 519.9 583.8 791 442.8 361.4 2.9 Rise 724.7 12 x 157 30.9
15 (L) Hi BB 593.4 428 63.1 110 Tapered 50/44~62/56 63.1 383 519.9 582.5 791 441.5 364.7 6.2 Rise 728.1 12 x 157 30.9
15 (XL) Low BB 595.1 447.3 62.8 110 Tapered 50/44~62/56 62.8 383 540.1 606 812.4 442.8 361.4 2.9 Rise 724.7 12 x 157 30.9
15 (XL) Hi BB 593.4 450 63.1 110 Tapered 50/44~62/56 63.1 383 540.1 604.5 813 441.5 364.7 6.2 Rise 728.1 12 x 157 30.9

We understand how important shipping is once you click "buy now", that's why we have the following policies

Australian Warehouse

All products are in stock and ready to ship from our Sydney warehouse (with the exception of preordered bikes, which have the dispatch date illustrated)

Next day dispatch

All orders received by 5 pm AEST will usually be dispatched the following business day. If an order is placed on the weekend or public holiday, please note dispatch will usually be the next working day. For tracked shipments, please allow 12 hours for tracking to begin.

Shipping of Parts, Accessories and Apparel

Economy Shipping

There is free delivery available on all small parcels Australia wide using tracked services of Australia Post or Fastway, no minimum order value required! Estimated delivery time is 4-9 business days. 

Express Shipping

We do also offer Express Shipping for a small additional fee on parts, accessories and apparel orders. Estimated delivery time on Express Shipping is 1 to 4 business days.

Shipping of Bikes

Shipping of bikes and other bulky goods is free to 85% of residences in Australia. However, some postcodes incur a surcharge starting from $29. 

Once shipped you will be issued a consignment number which can be used to track your parcel. We use Direct Freight Express for deliveries and you can track your delivery by calling 1300 347 397 or online at www.directfreight.com.au


We’re so confident that you’ll love our extensive range of bikes, that we’ll let you ride one as your own for a full 14 days and if you don’t like it, simply e-mail us at sales@bicyclesonline.com.au and we’ll pick it up from you, free of charge! Just make sure you keep the box so it can be re-used to send it back. Click here for more information. 

All of our bicycles come with a Free Pro Build valued at $99. This means that your bicycle will be pre built by our professional mechanics. For your convenience, safety and comfort all our bikes are fully assembled prior to delivery. The bike is then packaged back into a box for secure shipment.


When your bike arrives, all you have to attach is the front wheel, the handlebar and pedals, everything else has been done – the headset has been adjusted, wheels trued, pedals and seat post greased, brakes and gears calibrated, and the tyres have been pumped up (please note upon arrival, in some cases you may need to add more air to tyres).

Most companies simply sell you the bike as it comes from the factory, which will require significant know-how to get your bike on the road. Currently we are the only Australian company providing this service, and have the 14 day test ride to back it up.

Whilst your new bicycle will have already gone through our Pro Build process, you will still need to complete some minor final assembly steps when you take your bicycle out of its box.

Please follow the video playlist below to correctly complete the setup of your new bike:


Assembly Time:

  • 10-15min - You have assembled bikes before
  • 15-25min - You are mechanically handy
  • 30-40min - Never assembled a bike and working with tools isn't your thing


Unboxing your bike:

Start by carefully opening the top flap to expose the contents. You will see the bike with plenty of protective packaging and next to the rear wheel, the saddle & seatpost, a small cardboard box where your pedals, tools, bell and reflectors are. If you ordered any other products with the bike, it is likely they were placed on the bottom of the box as well. Remove all the loose items before pulling the bike out of the box and gently placing it on the floor.

Keep the box and all the protective packaging found on the bike in case you choose to change frame sizes, upgrade/downgrade the bike, or return the bike for a full refund under the 14 Day Test Ride Policy.




How to install a thru axle:


Disc Brake Setup:


How to Install Handlebars and faceplate:


How to install pedals on your bike:


Congratulations on your Purchase:

This bicycle is backed by a 5 year factory warranty on the frame and full manufacturer’s warranty on parts.

Warranty is valid only for bicycle that has been properly and well-maintained under the following conditions:

Warranty includes:

  • All damaged or fractured or broken frame / fork / component which was caused by manufacturing or assembling error in factory.
  • Non functioning mechanism caused by manufacturing error in factory.

Warranty is NOT valid for:

  • Incorrect assembly, i.e pedals installed in the wrong crank arm. 
  • Normal degradation caused by frequent use, such as degrading brake shoe, deflated tire, etc
  • Surface defects, such as stained, marred, defaced, etc
  • Damaged caused by misuse or accident
  • Other damages which are not caused by factory error
  • Bicycles which have been sold to another party
  • Bicycles used in commercial capacity, such as rentals
  • Bicycles which have not been well-maintained

For any damages which is guaranteed by the brand as the first condition above, the brand will repair or replace damaged frame / fork / component with the one of the same brand or similar.

Warranty is valid for all Polygon and Marin bicycles to the original owner only, by showing the purchase invoice.  

To make a claim click here.

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