Tires

From http://www.us.metzelermoto.com/product_info/faq/page_0002.htm:

 Can radial tires be used with tubes inserted?
 No. Motorcycle radial tires have different constructions than a bias ply tire so it is not permitted.

From http://www.us.metzelermoto.com/product_info/pcare/safety/index.htm:

 When fitting new TT (tubetype) tires, new tubes have to be used. Tubes 
 become stretched in service. If a used tube is fitted in a new tire, it
 can crease and fail due to thinning of the tube rubber.  When fitting 
 new TL (tubeless) tires, a new valve should be fitted for safety reasons. 
 Under acceleration and braking, as well as during continuous riding at 
 elevated speeds, the   centrifugal forces acting on the valve can bend 
 it down up to 90°.  Therefore, short valves should be used. At speeds 
 above 200 km/h, the centrifugal forces acting on the valve insert become
 so high, that the preload of the valve spring might not be enough to keep
 the valve closed. Short valve inserts have a higher preload than long ones.
 Even better are short inserts with a red   Teflon-ring.  These have further
 increased spring preload. Whichever type of valve insert is used, it is 
 very important to carefully tighten the valve cap.

 Some METZELER tires have a red dot in the tire sidewall to indicate the 
 lightest point which should be positioned next to the valve.

Suggested Bay Area wheel builder:

 Chris at Wheel Works in Hayward

 From local.google:  Wheel Works The - (510) 785-4396 - 1957 W Winton Ave, Hayward, CA 94545