These spacers allow you to convert a standard LSA offset 8 rib pulley to the Innovators West or ATI spacing. This moves the blower pulley one rib forward. Each spacer is precision machined out of 17-4 Stainless Steel and then ground to thickness for zero runout, and comes with longer appropriate hardware.
We can make these for any hub/pulley combo if we have dimensions, but the 3 stocked sizes are for L2V Griptec (early style), MKII Griptec (later style), and Lingenfelter hubs.
Early L2V Griptec hubs use an M4 bolt, internal diameter is 32mm (1.265") with a 42mm bolt pattern.
Later MKII Griptec hubs use an M5 bolt, internal diamters is 29.5mm (1.161") with a 1.55" bolt pattern.
Lingenfelter hubs TBD