Hi Jon
Why not take a look at liveindia.co.uk who specialise in small group motorcycle tours in India. I am the company's MD which means i am a little biased but i also know we are a cut above the competition if you are looking for a genuine travel experience.
We take you right off the beaten track and vary our route each time to make sure each trip is a unique adventure. You won't ride 8 hours a day with us as you will want plenty of time to enjoy and take in what you see along the way.
We keep the group numbers to a minimum (max 8) so that you get a much more "intimate " travel experience rather than being ushered round in an army like formation. This means much more flexibility during the trip allowing us to tailor it to your own tastes as we travel. This also permits us to stay in smaller, more atmospheric accommodation and to visit wilder out of the way places than you could do with a larger group.
I cant go into any more detail here Jon as words are limited, but please do have a look at the website and the facebook page and drop me a line to chat about it.
Take care and all the best
Andrew