Kmc e1ept single speed e bike chainthis high quality chain is suitable for use with mid motor e bikes and any other single speed internal gear systems'. '.strtoupper('w')hat's most impressive is its higher inner plates which also prevent chain drop and allow for a more confidence instilling ride'. '.strtoupper('r')ust resistant e bike chain this brilliant version features kmc's latest breakthrough in rust protection called ecoproteq treatment which doubles rust resistance when compared to the previous rust buster treatment'. '.strtoupper('b')enefits of this versions smoother coating are less noise, great performance, maximum rust resistance and a sleek look'. '.strtoupper('f')eatures use e bike size 1 2x3 32 pin length 6.7mm compatibility mid motor e bikes and any other single speed internal gear sysems top performance triple x durability anti rust for high end internal gear systems ecoproteq coated weight 306g approxbuy kmc components from chain reaction cycles, the world's largest online bike store.