I just got this 52t Osymetric chainring 130bcd and tried it out as a fast spinning setup for a little less than 200 miles and decided I’m going back to the 56t. This is the new 2014 model ramped and pinned. It will come with all the accesories included which was the chain catcher and front derailleur mount. It also will come with a Sram pc1030 10 speed chain with 108 links and has less than 200 miles as well.
