Construction and Features Siskiu frames are beautifully welded, with most of the tube junctions smoothed using a second-pass technique that is usually reserved for high-end aluminum and titanium construction. Stand-over clearance is maximized with a dramatically sloping top tube - a feature that also enables short-legged riders to take advantage of longer-stroke dropper posts (the medium sized T-8 rocks a 150-millimeter Tranz-X). Stand-over is 30 inches (76 cm) at the center of the top tube, which is good for a 140-millimeter-travel 29er.
Most 29er dual-suspension frames offset the seat tube in order to clear the larger wheel at full compression. Polygon follows this design trend, the upside of which is that the chainstays can be shortened. The downside, however, is that raising the saddle positions taller riders farther back over the rear wheel, which is the opposite direction of where their weight distribution should be going. None of that should prove troublesome, though, if you are properly sized for the bike.
Under-appreciated as it is well proven, Polygon's single-pivot swingarm hinges at the top of the bike's 32-tooth chainring, where it can produce ample anti-squat when its rider needs it most (while struggling uphill in the larger cassette cogs), while minimizing pedal kickback throughout the suspension's range of compression. There is plenty of room in the rear triangle to fit larger tires than its 2.3 inch Nobby Nics, and while we are on the subject of big wheels, large clevis pivots at the rear dropouts, assisted by a sturdy one-piece wrap-around seat stay and a forged rocker link, ensure that the rear of the bike will not flex when push comes to shove.
Tradition dictates internal cable and hose routing, and the Siskiu reluctantly obliges, drawing a line in the sand with an externally routed rear brake hose that will pay dividends to any home mechanic who has to replace a brake and lacks the time or skills to sever a hose and re-bleed the system.
Tucked near the threaded bottom bracket shell are ISCG 05 mounts, which I'd expect on this well-appointed frame, but one detail that Polygon missed was a provision for a water bottle on the down tube. That's not a deal-breaker for me, however, so I'll leave it to someone else to call them out for that faux pas
Two Wheel Size Options Polygon hails from Indonesia and its off-road range sells quite well in Asia, where there is a large demand for small-sized frames. To capture their home market, Polygon offers small and medium-sized Siskiu models with 27.5-inch wheels.
The 29 versions that we feature here begin with a medium-sized option and run up to extra large. Their specifications are very similar, although the smaller-wheel bikes enjoy more suspension travel and are booted up with wider tires. Interested? You can
compare the two here
Gotta be a typo, or a late April fool's, or , or ...
Seriously, more of these please.
Thx Pinkbike for alternating stratospherically priced bike porn and realistic options.
Keep going
Where?
www.polygonbikes.com/shop/bikes/frame/frame-siskiu-d8
Given the fact a Manitou Mattoc with vastly superior damping can usually be had for below $500, I have to disagree with this statement.
Otherwise, I love that you guys have reviewed a bike with a realistic pricetag and thank you for the elaborate analysis. Keep up the good work!
X-Fusion, DVO, etc. face the same problem.
Words to live by.
You’re joking
But there can be no dispute...a 32x46 is not a tall gear.
A 32-46 would be (and in fact is, on my hardtail) a totally fine gear for me in the woods here locally, but some of the sustained climbing on the bigger hills around here can start to get painful.
@lozzerbiker Sometimes when I'm climbing here, I get the feeling that it's never going to end. That and the fact that I often need my GPS (android app) just to know where I'm going makes knowing altitude a nice side benefit.
But I still think that a 32x46 is right at the top end of easy gearing. There’s only one more step to go before you must reduce your overall gearing just to get to the top. And if you got such big manly mountains to climb then you’re gonna want some gearage to come back down surely? (Aimed at the haters, not you @ssteve)
4000 ft over 22miles does sounds painful but after I checked it is directly comparable to some climbs I do here (and have done with a 34x42). If you guys wanna try and justify using smaller gears go right ahead, like I already said, I don’t care. You probably have a different bar width too, saddle, maybe we even prefer different grips...blah blah. Whatever works and gets you out on the bike.
@ssteve that's fair enough, for me it's the same reason why I wouldn't want di2, just not keen on electronics on the bike.
One thing I have noted in the past with Polygon bikes (my lad rides one and a few mates have the T7) is that the wheels are not fabulous (side to side flex is cruel!) and the Entity branded components are basic first and functional second. Otherwise...they are solid and well worth the consideration.
I sent a detailed question to polygon. I'll report back.
That gives you a bit of time to put some coin together for some custom wheels. Which would really make this bike sing...
Just my 2 cents
Why not having a big wheels frame for smaller riders would be disadvantage? Why would small rider benefit from big wheels on trail bike?
Huh???
They do share the Naild suspension platform on their top tier bikes. Not much of a jump from that and the similar construction of their less expensive models that they may be made in the same factory.
Geo, suspension and frame design...
Just a thought.
Looks nice especially for the price.
Too original for my taste.
Unfortunately it has shitloads of mid stroke support so it fails at taming rocky sections. Gnar.
Helloooooo. Bike companies. Mid stroke support is for people who mash the pedals and panic brake.
How about making a bike that is plush, comfortable to ride. Ok it will bob if you mash the pedals . Try spinning .
Mid stroke support is a crutch for lack of riding skill.