Fits with stock s/a.
I have 17" Dymags with the bigger tyre and no issues.
Shouldn't be any problems with stock length shock.
It is tiiiight to get into the frame though.
The only problem I had was with aftermarket side panels, one pair I chose wouldn't fit because the tank comes out into that part of the frame and there wasn't sufficient clearance. Found a pair that fitted OK and stock wouldn't be an issue.
One other down side is the lack of bragging rights as no-one can see it.
Best bit is that I can do 130 miles + before needing to fill up.