Just to let you know that I have just purchased a glass type battery (sealed) for one of my other bikes.
But it’s the same size as the odyssey battery.(that we fit in our 1100Rs) Its made by moto batt and is around £50.00 and is bright
yellow so you won’t trip over it whe you put it on the garage floor.
It also has top and side conectors and is sold by Wemoto.
The price for the odyssey battery is now £107.00 so at under half price it’s maybe a good option