S4 10W-40 is a mineral 4-stroke engine oil

cylinders and pistons

Available for most Harley models

Straight socket

16-21 900 XSR

wera zyklop speed ratchet kit 1 2 drive us sizes BS365 S4 10W-40 is a mineral8100 SC 9. 28 piece 1 2" drive in US sizes. Kit includes a Zyklop speed ratchet, a long Zyklop extension, a Zyklop wobble extension, a 1 2" drive Zyklop bit adapter socket with quick release chuck for 5 16" drive bits, 10 sockets from 3 8" to 13 16" with a brushed chrome finish,sockets from, ball intercept ring and knurled at the base for manual turning. Not for impact use. Also includes 14 bits with 5 16" drive in Torx, Hexhead (Allen heads),