I have the 412's in 12.5 inch and weigh around 180 also. I found that setting the preload up one notch was required.
Last edited by grapeman; 03/25/2011 7:33 PM.
'06 SM with T100/America Wheels (D&D's, 10.5 to 1 Wiseco pistons, TTP Igniter +3, K&N PODS, 150 x 40, FZ1 springs & TBS needles w/3 shims)
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