The not-so-minor details
Polygon Collosus N9
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Sizing is quite short.
Rear end flex.
Rear tyre clearance.
Five years ago, we’d rather have shared a car ride to Melbourne with a pack of angry wasps than have ridden a Polygon. Clearly that ain’t so any longer. This brand has undergone a transformation more pronounced than Rene Zellweger’s face; and while we preferred the old Rene, the definitely prefer the new Polygon. Right here we’ve got the all-new Collosus N9, the very same bike the Hutchinson / United Riders teams have been racing in the Enduro World Series.
“Holy Moses! Is that the new Polygon?” was the standard response from all who laid eyes on this savagely futuristic looking piece of kit, usually followed by the question, “what’s it like?” Well, we’ll tell you.
If the world suddenly starts to run low on carbon fibre, you can blame Polygon. The new Collosus N9 is has some of most incredibly complex, but perfectly executed, carbon frame shapes we’ve ever seen – Tom Ritchey and Gary Fisher certainly didn’t envisage that bikes would ever look like this! It’s clear that Polygon have looked for opportunities to shape this frame is ways that would have been basically impossible in aluminium. While they’re at it, they’ve equipped the Polygon with some of the most intricate frame graphics out there. Look closely and you’ll see some incredibly detailed graphics subtly adorning the less visible parts of the frame – very cool.
This 160mm-travel machine has a compact look about it, and the frame numbers reflect this, with the wheelbase a couple of centimetres shorter than many of its competitors. The chain stays are 430mm (fun), and the top tube is 590mm (a little short), while the head angle is 66.3 degrees (ideal). But numbers don’t mean a thing if it ain’t got that swing, and there’ll be plenty of time to chat about that later.
Polygon have employed their FS03 suspensions system, which is another variant of a four-bar linkage. The lower link arcs over the bottom bracket shell, driving the shock, which is also squished by the stubby upper link. (The design is actually a little similar to the Quad Link II arrangement previously used by Whyte bikes, but the Polygon’s lower link is located closer to the bottom bracket, which makes for less pedal feedback – winner.) The most striking aspect of the design is the extremely long ‘seat stay’; while most four-bar linkage designs have an upper link mounted off the seat tube, the Polygon’s upper link is way forward. This uninterrupted curve of the seat stay looks insane, but it does present design challenges in terms of keeping it all stiff. Giving the rear end a quick waggle reveals that even the use of huge pivot axles and an E-Thru 142x12mm axle can’t get rid of the inherent flex of this design. But as we’ve noted many times, a bit of wobble in the carpark doesn’t necessarily mean a thing on the trail.
With such a complicated looking frame, Polygon have managed to declutter things by routing all the cables internally, keeping them clear of the frame so there’s no rub at any point either. External routing options are in place for a dropper post, should you not get along with the Rockshox Reverb Stealth. We really don’t like remote fork lockouts on this style of bike (keep them for cross country racing, please) so we removed the CTD fork remote that came on the bike to further declutter its appearance. Speaking of lockouts, because of the orientation of the FOX Float X shock, getting access to the CTD lever is quite a stretch. Fortunately the Polygon pedals beautifully, so you’re not relying on the CTD lever to scoot it along at all.
Few details have been overlooked; the down tube is protected from rock strikes by thick frame stickers, and the chain is silenced by a heavy duty moulded rubber guard. You can fit a front derailleur should you wish, or a chain guide with the ISCG tabs, but not a water bottle – it’s a pack only affair.
Tyre clearance out back is pretty tight, not width-wise, but you’re restricted by height/depth of the tyre. A Schwalbe Hans Dampf in 2.25 squeezes in with plenty of room on either side, but there’s minimal space between the tread and the chain stay junction, so fitting anything much bigger than the stock rubber is not advisable. We didn’t test the Polygon in the wet, but we can imagine this could get a bit gloopy in the mud.
While a price tag of $5799 isn’t exactly pocket change, what you get for your money is pretty fantastic. With the exception of a adding a carbon bar in place of the Spank Oozy alloy number, you’d be hard pressed to upgrade the N9 in any meaningful way.
We like the fact that Polygon have cherry-picked the components, rather than sticking with a SRAM or Shimano/FOX theme. The end result is a great mix of Shimano, SRAM, FOX and e13. Shimano provide the ever-reliable XT brakes (still the best on the market, we feel), SRAM deliver with the superb XX1 drivetrain and RockShox Reverb Stealth post, and e13 supply the stiff (and loud!) TRS Race wheelset. FOX handle front and rear suspension, with a Float X rear shock and 160mm-travel 34 TALAS fork. Spank provide the 740mm-wide bar and 50mm stem, and it’s really nicely finished kit. The anüss pleasing Fizik Gobi saddle is a safe call too.
Specific praise should be given to Polygon’s decision to add a travel-adjustable fork; dropping the front end by a few centimetres on climbs does wonders for bikes like this, which can be a handful to keep on track up loose, steep fireroad grinds. As we mentioned before, we ditched the fork’s remote CTD lever – we think the travel adjustment is far more important on this kind of bike than remote lockouts.
Compared to many new all-mountain wheel offerings, the e13 TRS rims are a little bit narrower than we’re becoming accustomed too. But these wheels are certainly stiff, thanks to absolutely massive hub shells/flanges, and the rims come ready for tubeless use, just add valves and spooge. They’re also amongst the loudest wheels we’ve ever ridden, which is sure to divide riders into the ‘look at me, look at me’ crew and those who want to actually talk to their mates while riding!
The Collusus N9 is the funnest thing to come out of Indonesia since those Gudang Garam clove cigarettes that gave us head spins back in year 8 at high school. (Smoking is bad, kids!) But seriously, this bike is incredibly playful, especially given its generous chunk of travel. With its relatively short wheel base, it wants to hop, flick about and manual, hiding its 160mm of bounce until you need it. The same can be said of the way this bike pedals – it’s stable and efficient under pedalling efforts, not wallowing about like some 160mm bikes.
The bike’s immediate, first-pedal-stroke acceleration isn’t quite as good, which we put down to the frame’s rear end flex. It just seems to lose a bit of that initial snap when you first put down the power, when compared to a stiffer framed bike.
Carrying speed, however, is not an issue, as both fork and rear suspension do a fantastic job of getting the wheels moving out of the way of the bumps that want to slow you down. The suspension design is super active, delivering excellent traction under power. We’re certain the FOX Float X shock plays a big role too, as its arguably the most responsive and smoothest air shock on the market, handling fast, repeated hits beautifully.
Getting the fork pressure dialled was easy thanks to the handy setup guide on the FOX website, and from the word go we were 100% happy with the fork’s feel, the rear end took a little more twiddling. We ultimately ended up running a tad less sag than usual for this style of bike (just on 25%), which delivered the balance that we wanted. If we dropped the pressures towards the 30% sag mark, we found the bike hitting the bottom of its travel a bit easily and not keeping in step with the fork. It’s always worth taking a shock pump out for your first few rides we think, and the Polygon proved this once again. Once we had the pressures dialled, the bike’s balance was impossible to fault.
Descending is obviously the bike’s forte, and we loved how quiet and smooth the Polygon was. The fact that it’s such a playful, manoeuvrable machine makes it easy to manhandle around technical trails, putting the wheels exactly where you want them, and the grip is sensational (great tyres, supple suspension), letting you brake hard and late with the awesome Shimano stoppers. We wouldn’t say it’s a class leader in flat-out, super rough terrain – there are other longer and slacker 160mm bikes that will serve you better if you’re looking for downhill bike stability at speed – but for the kind of steep, techy descending that most riders will be doing, the N9 is brilliant. It’s a fun bike in corners too, making easy work of tighter trails that would bog a lot of other bikes in this category down.
The Polygon’s climbing prowess is fine on shorter inclines, where you can get out of the saddle and hit the climb nice and quickly. On long grinders we found ourselves wishing for a little bit more length – either a slightly longer stem or a longer top tube – as the upright seating position is hard on the lower back. As with every bike, it’s important to get a test ride if you can, and we wouldn’t be surprised if many riders go up a size over their usual, in the N9 in order to get the required top tube length.
In today’s market, and particularly in this rapidly-growning all-mountain segment, it takes a lot to standout. But the N9 really does; it looks amazing, is excellent value (yes, an expensive bike can still be good value), blends fun and confidence perfectly, and registers Polygon as a serious contender for the ‘most-improved’ award in the industry. Make sure you check the length of the bike before you buy, because some riders may want to size up, but otherwise you should have no reservations about handing over your hard-earned for this weapon and hitting those rowdy trails on a bike that quite clearly comes from the future.