Kmc x101 single speed bike chainbrass plated to increase its strength by 30%, the dazzling x101 single speed bike chain brings you hard wearing and consistent operation under hard acceleration and in all riding conditions'. '.strtoupper('a')n ideal replacement or upgrade for your track bike, single speed commuter or even bmx use, kmc supply it with their tool free ldquomissinglinkrdquo chain joining link, so you can get your bike rolling again in no time.features material brass plated speed single speed use road, track, bmx and city bikes compatibility single speed, internal gear, bmx, track and fixed gear size 1 2 x 1 8 links 112 adjustable yes quick link joining link included yes, kmc missinglink pin length 8mm extra features  patented sealed locking design manufacturer's part number gold bx101g112 silver bx101n112 weight 367g approx.buy kmc components from chain reaction cycles, the world's largest online bike store.