Have heated Oxford grips on my 748: Ideal - it allows me to ride in summer gloves all year round!
Sorry, can't help with the fitting bit though: Tony at Two Four Italia put them on when he repaired my little beauty after a myopic woman drove into the back of me 18 months ago (knee will never be 100%
)
I can only recommend heated grips - even if some say it is heresy on a 74*/9**
