Powered by Outside

Kurt Sorge's Polygon Colossus - Red Bull Rampage 2017

Oct 27, 2017
by Paul Aston  

Kurt Sorge is part of an elite group of riders who have claimed victory at Red Bull Rampage more than once. Over its 11 event history, there have been 8 winners, and only three of those have doubled up: Sorge, Semenuk, and Strait. Kurt uses a large-sized Polygon Collosus DH9 with the flip chip in the higher and steeper setting, and the veteran uses a 26" wheel 'cuz they ain't dead yet.

Rider: Kurt Sorge

• Polygon Colossus DH9 - Large
• Wheel size: 26"
• 200mm travel
• Handlebar width: 790mm
• Tire pressure: 30 psi with tubes
• Cane Creek DB Coil: 700 lb/in spring
• Suntour Rux: Hard and slow
• Flip chip in high and steep mode to raise BB
• Weight 35lbs

Bike caddies have cool jobs but I bet this one is glad glad he doesn t have to carry a bag full of downhill bikes for every different lip on Kurt Sorge s line.


Sorge s Polygon Collosus DH9
Sorge s Polygon Collosus DH9

Sorge's Cane Creek DB coil is set up super stiff with a 700lbs titanium spring. The fork is also pumped up to take on the big hits with high pressure and slow rebound. SR Suntour are also on hand at Rampage to keep the fork running smoothly in the super-fine dust found on this moonscape.

bigquotesI'm running it pretty stiff, trying to find the balance between downhill bike setup and a FEST Series setup – at the FEST we pretty much set it as stiff as possible with really slow rebound. Though I have gone a tiny bit softer here than what I use for normal jumps to help with grip. But, pretty much as stiff as possible with as much rebound as possible!

Cockpit and Contact

Sorge s Polygon Collosus DH9

Sorge's hands are supported by Sensus 'Disisdaboss!' grip – the signature model from Andreu Lacondeguy. Deity takes care of steering with a Holeshot bar cut down from 825mm to 790mm. The bar is bolted to the Rux fork with a 35mm diameter Intake DM stem.

Sorge s Polygon Collosus DH9
Sorge s Polygon Collosus DH9

Sorge s Polygon Collosus DH9
Deity also supplies pedals in the form of the low profile Bladerunner platform.

Tires and Wheels, Stoppers and Starters

Sorge suggests his Addix rubber Magic Mary tires from Schwalbe are pumped up to around 30psi with tubes - measured with the tried and tested 'hand gauge,' going by feel and getting them hard enough to not roll on the rim. The wheelset is from Hope and Sorge is using the Tech DH rim with a 28mm internal width.

bigquotesHope Wheels are most bomber wheels I have run the last few years!

Sorge s Polygon Collosus DH9
There is little need for a drivetrain at Rampage after the initial timid crank turns into the various vert drop-ins. Sorge is using a Shimano Saint 10spd system.
Sorge s Polygon Collosus DH9
Stopping, on the other hand, is more of a priority. Saint calipers are set on 200mm IceTec rotors.

Sorge s Polygon Collosus DH9

Author Info:
astonmtb avatar

Member since Aug 23, 2009
486 articles
Must Read This Week
Sign Up for the Pinkbike Newsletter - All the Biggest, Most Interesting Stories in your Inbox
PB Newsletter Signup

  • 85 3
 26 gets the chicks!!
  • 14 11
 Nice to see how influential Cotic is with their 26" ain't dead tagline. Not saying they made Polygon or Kurt go for a 26" wheeled bike but definitely for creating that tagline (for a much more accessible bike too).
  • 43 0
 He runs 26 to make room for his massive balls.
  • 9 1
 @Smallbright the two of us have very different experiences with 26" wheels apparently...
  • 4 2
 26" wheels for this man of steel makes the ladies squeal!
  • 9 16
flag NYShred (Oct 27, 2017 at 8:22) (Below Threshold)
 "...26" wheel 'cuz they ain't dead yet." - check that language, using "yet" implies that eventually they will be dead - and they won't.

Theres absolutely no reason to kill off 26 other than for frame/component makers to have one less standard to adhere to when developing products. If you want to kill something off, kill off 27.5 - Theres barely any difference between 26 and 27.5, but theres a huge difference between 26 and 29.
  • 2 2
  • 7 1
 26" still winning rampage!
  • 1 0
 @NYShred: why do bikes have gears, its just another way for companies to make money. 27.5 master race!!
  • 57 3
 On of those times then the "ride or die" sticker has a little more legitimacy behind it
  • 1 1
 "a little more"
Now that's an understatement!
  • 21 0
 All the talk about latest standards, carbon wheels etc and this legend slaps a pair of 26” Hopes on and is gonna send it at Rampage!! Respect
  • 2 0
 I was gonna get a pair of hope dh-s anyway, but seeing them on so many rampage bikes i'm conviced they will also serve more than well on my enduro bike.
  • 2 0
 @igorov: Been riding the hope wheels on both my Enduro and DH bike this year, can't say enough good things about them. Definitely worth the purchase, and they'll be going on the new bikes as well.
  • 18 0
 how does he go down that mountain with bars that are ONLY 790mm? I was told your handlebars had to be at least 800mm
  • 2 1
 790mm handlebar surprise you buddy
  • 2 0
 @chococlove: it was a joke. pretty much all the reviews here seem to say you need 800mm bars stock on xc bikes
  • 4 0
 Because of the 26" wheels, I suppose.
  • 18 0
 26" for those that still know!
  • 9 0
 Those pedals are not T-macs
  • 6 0
 obviously mr. aston didnt see the pedal article yesterday
  • 7 2
 Perhaps a bit ignorant question: are the two following statements the same: " The fork is also pumped up to take on the big hits with high pressure and slow rebound", and "But, pretty much as stiff as possible with as much rebound as possible!"? I guess the question is whether more rebound equates to slower rebound? Seems counter intuitive or I'm just not reading it correctly?
  • 15 1
 Probably should read "with as much rebound damping as possible"
  • 4 1
 probably he meant as much rebound damping as possible
  • 7 1
 The term "adding rebound" means to add damping which means slower rebound. Seems counterintuitive but that's just how we say it lol you aren't the only one that thinks it's weird
  • 1 0
 Yes, it would be short for "more rebound damping" which is slow rebound.
  • 3 2
 To answer your first question, yes, more rebound dampening makes the fork or shock rebound slower. This is needed when running high pressures or stiff springs to keep the bike from bouncing like a pogo stick on the landings.
  • 2 3
 Yeah 'more' rebound, or turned more towards the + means the fork will return slower, also it's less poppy off jumps. The stiffness is obvious, to take the big hits on landing. Because there's more rebound, the bike won't sit sagged out after landing. (Think that's right?).
  • 6 1
 Would somebody please explain rebound damping and how it slows down rebound.
  • 3 0
 @scjeremy: Basically, dampers reduce the effect of a spring in a given state. In the case of rebound, with no damping the spring would return to its uncompressed state as quickly as possible. The more damping you add, the more you slow the spring down compared to its undamped state. So, adding more rebound damping means you slow the spring down as it tries to decompress (rebound).
  • 2 0
 @scjeremy: A spring in the left side of your fork wants to extend it, a tiny valve regulates oil from moving between 2 chambers in the right side of your fork, thus slowing down the spring's springyness. Check out "tuesday tune" videos by vorsprung suspension for more than you ever thought you'd know
  • 2 0
 @dscaz: Plus adding more air to stiffen the fork up means you need more rebound damping to match the return force of the increased spring rate, other wise the fork turns into a pogo stick. Many people forget this when stiffening their forks and shocks.
  • 9 0
 Sacred Ride represent!
  • 4 0
 Congrats to @SRSuntour for being the fork that won this years rampage. I think that is huge for an underdog fork company. May you live long and prosper for this win.
  • 3 0
 Interesting you call them underdog. They are one of the biggest (if not the biggest) bicycle suspension fork manufacturers in the world. That said, I agree they may be relatively new to the high end long travel market though of course with the UR Polygon DH team they've already proven they can keep up with the established names. Other than the long travel market, I think they've been right up there in XC and 4X racing for quite a while.

Has anyone been riding the new Formula DH forks there? Now that would have been an underdog!
  • 4 0
 Winning bike right there! According to my Fantasy pick... But I know he can do it.
  • 3 0
 Congrats dude!
  • 2 0
 Ha! Called that!
  • 4 0
 Is the fork 26" specific, or did he slap a 26 in a 27.5 fork? Doesn't look to be much more room in there.
  • 4 0
 Sr suntour make that fork 26" specific
  • 1 0
 The Rux uses the same lowers for 26 and 27.5. The 26 has a more flat crown and 44 mm offset. The 27.5 has a bit more height to it and a 50 mm offset. Kurt's running the 27.5 crown. There's tons of room on both wheels sizes for some big tires.
  • 3 0
 i would love if red bull setup radar guns at some of the higher speed sections of trail
  • 3 0
 Aluminium frame, 26 inch wheels, forks that look like zocchi 888's. What year is it?
  • 3 0
 It's the future........
  • 1 0
 Thanks pinkbike and Paul Aston for such a great review !! As a biker myself I think this wicked articles make us progress at the time of setting up our bikes so BIG THANK YOU!
  • 2 0
 How many other pros are riding a aluminum bike? I'd love to hear their reasoning.
  • 1 2
 Strait Bizet Tupin mc caul and ferry are all riding aluminium bikes. It's not out of preference but what their sponsors give to them .
All of they're sponsors make carbon bikes (except commencal) but no gravity bikes. Some manufacturers feel that aluminum can give better performance and they can shape the bike much easier to their specific wants
  • 3 0
 Do keep in mind that Polygon does have a carbon prototype downhill bike. The Hannahs have been racing on them.
  • 1 0
 @felimocl: it is of preference'
  • 1 1
 I think there is also a different mindset from freer riders an racers too.
Racer are more likely (gullible) to believe the latest carbon weight saving, axle wheel tire size/standard stiffer part is gonna make them a few hundredths of a second faster an therefore will pay thousands of £ € $
Whereas free riders understand that's a load of bollox an nothing makes up for skill.......
  • 1 0
 To all those high end carbon parts and 27.5 / 29 wheels fanboys...: F**k YOU
  • 1 0
 hahaha made my day! most of my buddies are always looking down on 26'ers. This is the most authentic shit that you can't win rampage with a stupid 29 carbon rig
  • 2 0
 35LBS on a Large aluminum DH bike, who are you kidding?
  • 4 3
 What's the fork? Clearly a 26" specific.
  • 16 0
 @alexeyter - Its our RUX. The fork chassis and internal parts are same for 26 and 27.5, only difference is the crowns. Offset and Steerer type. 46mm offset 26" with Straight steerer, 50mm offset with Tapered Crown for 27.5". Coming in 2018 we will have a straight steerer 50mm offset 27.5" crown option.
  • 2 0
 It's a SR Suntour Rux. I love the Rux on my DH bike. I've been on it for over a season now and I don't see myself going back to any other fork anytime soon.
  • 1 1
 @SRSuntour: why straight steerer? do any dh bikes not take a taper?
  • 7 0
 @adrennan: Triple clamp fork is stiff enough without tapered steerer. It also leaves room in the headtube to use an angleset/reach adjust headset.
  • 5 0
 @SRSuntour: congratulations winnin fork! happy for you guys
  • 1 0
 More room for internal routing too as any V3 owner will know!
  • 4 2
 Why not tubeless?
  • 5 0
 the tube pushes the bead against the rim so even lesser chance of rolling the tire off the rim.
  • 5 8
 big high speed jumps. tubeless can't be inflated to as high of a psi so they would squirm a bunch on takeoff.
  • 5 4
 @adrennan: thats not exactly accurate my sir
  • 3 3
 @chillrider199: i dont know just reciting what some of the riders have said. they probably dont know anything though.
  • 2 0
 @chillrider199: I've also seen that tubes add weight which helps when its windy
  • 1 0
 Not @deityusa T-Mac's, those are Bladerunners Wink
Nice bike tho
  • 2 2
 They posted 2 bikes...obviously of Sorge or Strait...one won...I smell Rampage winner is rigged... Get rid of the judges!
  • 5 2
 Shut the fuck up and go buy a bike that someone said is cool!
  • 1 0
 I wonder if there is POV footage, it would be sweeeeet!
  • 1 0
 Don't Ride, don't die?
  • 2 0
 Cruise and only end up with a bruise?
  • 1 1
 Indonesia Polygon Best Bikes.
Below threshold threads are hidden

Copyright © 2000 - 2024. Pinkbike.com. All rights reserved.
dv65 0.076322
Mobile Version of Website