big rear wheel applications and other cool mods:

[Thomas Hoy]

More on this subject:

http://cgi.ebay.com/ebaymotors/5-8-offset-countershaft-sprocket-16Tx630-GPZ-
drag-bike_W0QQitemZ120369866697QQcmdZViewItemQQptZMotorcycles_Parts_Accessor
ies?hash=item1c069a67c9

Sorry for the ebay link mess.  Kosman sprockets 5/8 inch offset front
sprocket for GPz applications.  16 or 15 teeth on ebay at $35.00

Dunno how much rear wheel 5/8 inch will buy at the front, but I imagine it's
it should make for a 5.5 wheel and 180 tire at least. 


Also:  Rearset pegs:  Tarozzi and Omar's do bolt-on rearsets for GPz1100. 
Tarozzi has steel or aluminum brake lines precut for the GPz as well.