According to Taiwanese page
https://forum.jorsindo.com/forum.php...=1&tid=2552776 Yamaha
93102-22843 are as 19.8*30*5 ***At ur own risk***
Nitrile (NBR) is the most common type is this application. Fluorocarbon (FKM) aka those "brown
thingy" also available IF u tried HARD to find it at the right place...
https://www.ptt.cc/bbs/biker/M.1460098893.A.AEB.html Intresting ?!!! SYM's infamous "brown" to "black" & endless failure ...