I guess the size is not indicated on the web site. The ZX9 and ZX7 they list as 12mm. Can anyone tell me the size thread they used for spools?
http://www.pit-bull.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=PBMSA&Category_Code=spool_kits
Also, Is there any problem fastening Pit Bull spools to the bike? I have heard of people having to grind some spools down on the edge to get them on -- I guess that may be necessary because the rounded contour of the swingarm doesn't allow the spool to tighten flush to the mount.