Looks like the official gps is on the garmin site (zip file is here
http://static.garmincdn.com/shared/uk/custom/ridelondon/downloads/training.zip ) Although it just says training route - sure i read somewhere that the start for the timing isn't the olympic park but along the road a bit so that would be the reason for it being 96 miles
just over 1200 metres climbing according to that.
That's not the exact route as it diverts on a legal to ride path through Kingston, hence a training route - on the day we will benefit from closed roads so I would imagine a different route ignoring the one way streets. Having said that its about the closest it seems we will get to a proper on the day ride, just have to put up my Garmin beeping the feck out of me around Kingston way.
Also, the pens are in the Olympic park, we ride slightly north to get on the A12, and loop down that normally busy road (which cyclists normally cant ride, hence not on the training route) and the actual start line is near the bottom of the A12 before we come off to go west.
Its that part which is not clear, otherwise I would have made my own garmin file months ago. RL's half baked maps they have released so far leaves that part a ?
Interesting yet more deviation in the elevation...around 4k on that.
Im still going for higher :P