The ITCS line for the '85 - '87 CRX Si says that 13" or 14" is OK, and it's easier to get a 13x7 to fit than a 14x7 on the 1st gens (plus the gearing change doesn't hurt). I believe it would also be covered under the update/backdate allowance - '85 - '87 had the same body and engine... The 2nd generation Si can only use 14" for ITA.

Dave - what year CRX are you driving?

-noam