Stranger strangergram sprocketthe strangergram is a standard style sprocket compatible with alll non socket drive cranks and is supplied with reducer tophats strangers new strangergram sprocket is sure to cause a stirfeatures 3d pentagram style custom design fully cnc machined from aircraft grade 6061 t6 alloy teeth 25t 28t weight 80gbuy stranger from chain reaction cycles the worlds largest online bike store