|Posted||23 Aug 2018|
|Wheel Size||27.5" / 650b|
USED MTB CARBON HARDTAIL Polygon Cozmic RX 3.0 2015 -XXS Super OFFER
The Cozmic RX 3.0 is an impressive looking carbon hardtail that will not look out of place next to a Scott or Trek equivalent. With a weight of 9.7kg (minus pedals), it is impressively light without having to resort to extreme weight weenie products. The Taiwan made frame, like most carbon frames, is a sight to behold in its lustrous carbon weave pattern. The white and gold graphics lend a very subtle classy look which differentiate it from the sea of fanciful bicycles. With details like an oversized downtube, beefy bottom bracket junction and a wishbone seatstay, it shouts stiffness and efficiency. But will it be painfully rigid? The tight tire clearance around the seatstay and chainstay might pose mud clearance problems should the rider go for more substantial rubber than the 1.95″ standard Panaracer Trailblaster tires. Other clean and thoughtful details include the replaceable rear derailleur hanger and the triple top tube cable routing.
The drivetrain and braking departments are all taken care of by the latest generation of Shimano XTR M970 components. The latest Dual Control shift/levers is particularly interesting, however we shall leave that to the complete review on the XTR which will available shortly. The wheelset supplied for this test is also from Shimano’s XTR range, for the purpose of reviewing the latest XTR offerings. The actual bike will be sold with Mavic Crossmax SLR, the cream of the crop wheelset from Mavic. The rest of the bike was dripping with high end parts from Ritchey and Fizik. The whole bike is equipped to stand wheel to wheel with other competitive XC bikes on the start line of a race.
Polygon has also made a wise choice in choosing the Rockshox SID team for this bike. It is neither the plushiest nor the stiffest XC fork on the market, but it is plenty stiff and lightweight for XC racer types. A remote poploc is mounted on the lefthand side of the handlebar, allowing the fork to be locked out on the fly with a simple push of a thumb. However, due to the poploc’s release button, the remote lever could not be mounted completely flush against the dual control shifters. The SID team was reasonably plush for its purpose, but being a heavy rider, it left me wishing for something more capable of soaking up big bumps.
ACX Advanced carbon frame with tapered head tube - internally routed
Fox Float Factory CTD fork with Remote lockout, Kashima Coat, Travel 100MM
15mm thru axle and 12mm rear axle
Shimano Deore XT 22 Speed groupset (M8000)
Entity Elite carbon finishing kit
Shimano pressfit bottom bracket
Schwalbe Racing Ralph tyres
DT Swiss Spline One Wheelset
5 Year Warranty on frame
Full manufacturer’s warranty on parts