The Battlax Superbike slicks are great tires and they're available in a 180 or 190 rear. The Soft (YCX) compound is a Medium in the Bridgestone range and these work very well at NorCal tracks. Viets Performance has both the 125 front slick with 'V' shaped profile and stiffer carcass and the 120 front slick with a more rounded profile and slightly softer carcass. 

The Medium (YCY) slick is more of an endurance tire but in a 165 slick works well for SV650s and we stock these. For 2011, Viets Performance is offering Superbike slicks with 180 or 190 rears for just $385 a set at AFM race weekends.

Bridgestone slicks for 125/250cc GP bikes are in stock and Supermoto and Rain tires are also available by request. Let them know what you need.