My Cruiser Medium is 15†by 15†but that is flat. I guess if it had three puffs, which I don't have available, it might be 14†by 14â€.
In fact I just looked on the label inside and it is indeed 14â€x14â€.
Mind you, mine is on the Sargent seat which is different in all ways to the stock seat.
Honesty, the things we do for those we love....OK, just stuck it on my stock seat and it fits 'perfectly'.
Go buy one...
OR!
Pay the postage and I'll let you try mine for a while, I'm not riding to Timbuktoo anytime soon.
Actually, come to think of it, that is exactly how I got mine from Timbox...anyone remember him