Polygon's
XquarOne EX attracted all sorts of attention when it debuted in the spring of 2017, and for good reason. The otherworldly frame design stood out from the ever-growing crop of four-bar lookalikes, and its performance on the trail was out of the ordinary as well. It wasn't long before members of the Polygon UR team were spotted riding DH bikes with a similar suspension layout as the XquarOne EX, and semi-camouflaged prototypes started appearing at Crankworx and World Cup events around the globe. That bike, called the XquarOne DH, is now ready for public consumption, with two complete models and a frame-only option hitting the market.
XquarOne DH Details• Intended use: downhill
• Wheel size: 27.5"
• Rear wheel travel: 218mm
• Carbon frame
• 63° head angle
• 440mm chainstays
• Super Boost 157 rear spacing
• Sizes: S-XL
• DH9: $6,399 USD, DH8: $4,999 USD
•
www.polygonbikes.com 29” DH bikes have been a hot topic this season, but Polygon chose to go with 27.5” wheels for the XquarOne DH, stating that they were focused more on creating a bike that was fun to ride, and wasn't strictly for DH racers. Now, whenever I come across a marketing pitch that supports the idea that 29” downhill bikes aren't fun to ride I tend to roll my eyes, mainly because it's an antiquated notion that wheelsize has any relation to the level of enjoyment delivered by a bike, but that's a topic for another time. Big squishy DH bikes are fun no matter what size wheels they have. Anyways, back to the XquarOne DH.
Along with 27.5” wheels, the bike also has 218mm (8.6”) of rear travel that's delived via the Snuffleupagus-looking NAILD R3ACT suspension layout. The suspension configuration is relatively the same as the XquarOne EX, but the shock tune was developed with the rigors of downhill riding and racing in mind.
Frame Details The XquarOne DH's frame is carbon from tip to tail (excluding the rocker links and the stanchion that the swingarm slides on), part of the reason Polygon were able to keep the weight down to a very reasonable 8.8 pounds, including the shock.
Super Boost 157 spacing has begun to pop up on a handful of trail and enduro bikes, and it also makes an appearance here on the XquarOne DH. That means there's a 12x157mm rear end matched to BB92 bottom bracket, rather than the BB107 or threaded 83mm bottom bracket shell that you'd typically expect to find on a DH bike.
The rear brake and derailleur housing are tucked away inside the frame, emerging only briefly to bridge the gap between the front triangle and the swingarm. The frame's unique shape leaves a lot of surface area exposed in front of the bottom bracket shell, so Polygon installed a thick plastic protector to keep the bike's underbelly safe from rock damage. There's also a fender attached to the swingarm, complete with a label warning that the bike isn't to be ridden without the fender in place.
Suspension DesignIf you're unfamiliar with the NAILD suspension design, here's the basic rundown. The swingarm is attached to the front triangle by a short aluminum link, and the shock is driven by a yoke that wraps around the seat tube. That description would work for a number of dual-link designs, but there's one more element to this system – an aluminum stanchion tube that the swingarm slides over. No, it's not another shock, just like the two short rods on Yeti's Switch Infinity design aren't tiny shocks either. Instead, this layout allow for the bike to have a consistent amount of anti-squat (between 98 – 110%) throughout the entire gear range. In theory, that means the bike should still pedal well even if you're at the bottom of the cassette and need to throw in a couple extra pedal strokes to get speed for a jump, or putting down the power for a final sprint to the finish line.
The NAILD design works best with a shock that has a very low amounts of compression and rebound damping, and in this case a custom tuned Fox Float X2 gets the job done.
GeometryThe XquarOneDH's geometry numbers fall right in line with what you'd expect from this style of bike – it has a 63-degree head angle, 440mm chainstays, and a reach of 450mm for a size large. Standover height remains the same for all four sizes, which makes it easy for riders looking for a little extra length to size up. The lack of an XXL may have the tallest of riders looking elsewhere, but as it is the four sizes should cover a wide range of heights.
Build Kits Along with the two complete bikes, the DH9 and the DH8, Polygon will also offer the XquarOne DH as a frame only option for $2,999 (including the Fox Float X2 shock), or it can be purchased with a Fox 40 Float fork for $4,399.
First Ride ImpressionsIn a perfect world, this would be where I'd describe the nuances of the XquarOne DH's handling, and report on how it's been holding up to long days in the Whistler Bike Park. Unfortunately, that plan didn't really work out the way I'd hoped, and I've been on the injured reserve list for the last few weeks.
However, I did get in a couple of laps in the park before being forced to the sidelines, laps that made one thing abundantly clear: the XquarOne DH delivers an incredible amount of traction, especially while cornering. Typically, it's pretty easy to let the back end get drifty when summer is in full swing and the trails are dry and dusty - all it takes is a subtle weight shift in the right scenario and the rear wheel of almost any bike out there will break free and slide around like a gymkhana car. With the XquarOne DH it's a different story – that rear tire feels absolutely glued to the ground, no matter how hard you push into it. It's a wild feeling, one that quickly leads to increased confidence when heading into a sharp turn with a good head of steam.
| The XquarOne DH delivers an incredible amount of traction.—Mike Kazimer |
That massive amount of traction had me expecting to need to fight to get airborne, but the XquarOne responded relatively well. There's not as much pop as you'd find with something like a YT Tues, but it didn't take a massive amount of effort to take flight either. My abbreviated stint on this bike left me with plenty of unanswered questions – I'm curious about how the bike will feel in really rough, choppy terrain, and about how the swingarm elements will fare when it comes to durability, but I'll need more time on the bike before I can figure out the answers.
Stay tuned.
Shop Dude: Huh!
Me: You know the Ex Queeaarrr One DH
Shop Dude: Are you even using words?
Me: f*ckit! Can I have a Session please
What are you talking about? It's had a crazy short development period. Some bikes take years to be released
Just gonna leave this here...
It looks like a YT front end with a 1993 Cannondale Super V Rear triangle, and 2004-2011 Honda Civic CV Steering axle connecting them at the bottom bracket. lol
Thats how I read that lol
Or a gas cylinder from under an office chair. Where is the lever that makes it go up and down?
Build to ensure a third place win or less in the women's category.
Dam it I had to say it and all I really want to see Tracey on the top of the podium. I mean the girl took third place in the 2017 world championship after crashing and being knocked out on the course.
MTWA: Make Tracey Win Again.
Polygon: hold my beer!
Any Orange FS bike is at the mercy of precisely two bolts sharing an axis, and those are some of the toughest machines around.
Journo Spud. Lol.
Sorry icant stand bike radar site cuz it tooo heavy loading content ans too much publicity and pop up. Sorry bro it took too long for my taste. Didnt evar see the cracked frame cuz it too long to load ( 10 second ) ***gasp*** and i hit the back bitton to PB FFS !!!!
Bike radar is utter crap compared to PB
“I was hurt and couldn’t ride it”
Still got the talking points about 29ers being fun in. We must condition people to the future of 2020 when 27.5 is dead and SuperBoost rules all. Build is decent though. Except the same exact Saint brakes people were riding when GW Bush was still president.
And @SlodownU, please find me one place where I've said I wasn't having as much fun because of a bike's wheelsize. I've written about performance differences between one wheelsize versus another - that's part of my job after all - but I can certainly have just as much fun on a 26" bike as I can on a 29" bike.
How bad is/was ur injury ?
"Unlike the Marin Wolf Ridge, which uses its own version of the R3act system, I didn’t notice any issues with frame flex or shock binding."
www.bikeradar.com/mtb/gear/category/bikes/mountain-bikes/full-suspension/product/polygon-xquareone-dh9-review-52156
I wont go to bike radar.
Too much crap. Heavy content. Useless publicity. Toi many window to other link. Toi heavy to load on my phone.
PB is simple and faster loading ,1 advertisment per page is good nuff and fun to read the comments
if that is the case why are they using an air shock and not a simpler coil (not a coil shock) ?
in other words the review bike broke and the manufacturers said it was their production issue that caused it but dont worry yours wont do it so please spend several thousands on our bike and trust us.
yeh hardly a great start but sure spin it however you see fit.
29 is for racing and 27,5 now is the fun bike
When most of riders asked can you leave 26 for fun and 39 do for racing, than they sad no no no,
but now there is solution
Whoa. Colour me impressed.
Translation, extremely linear design, high spring rate (or air pressure) to compensate. If you add compression, it will become very harsh. Reminds me a bit of my old Orange 322, very linear, barely any compression but high pressure to prevent bottoming out all the time.
Why, in this day and age, especially for a bike designed for racers, would you go for a very linear suspension design? And you can see that in the slowmo videos of the bike from the team at world cups, the bike eats up most (if not all) of the real travel at the smallest of pebbles on the track... That would probably be a really good design for an XC/AM short travel bike (smaller shocks, steeper ramp up during the travel), but not for a DH race bike...
I guess you missed where others have said that it moves smoothly through it's travel when they remove the shock to examine it?
Whatever
QUICK MAFFS.
Super boost been out for what..5 years?
Def the way to go, should never have bothered with boost light when dh parts already available for super boost.