I am in the process of going to 15" wheels, and in looking at the selection of tires that have the correct load range and are more of a street/trail tire, say a 215/70R15 look like they have a theoretical rev/mile of about 751 revs per mile vs about 797 for the 205/70R 14 tires.

This is about a 6% difference.

Right now I'm running XCA 205/75R14 tires which are about 754 rev/mile and I definitely noticed the difference. Its livable, but I'm not going to win any 1/4 mile acceration contests - steep hills that I used to be able to get by in 2nd gear, now require a shift into 1st.

Has anyone gone to the trouble to change the gearing to adjust for this? If so, what did you do?

Todd
'88 Westy