new smaller battery question

[TajMan]

I'm fabbing up my frame now, and I need to finish a battery box/holder before I'm ready to have it sandblasted.

I eliminated the stock battery tray/bracketry.

I want to install a new smaller battery, and have it in the triangle of frame on the left side where side cover would be.

I simply need to know what battery I can use, that will have the amps to turn over the 1100 engine ok, but smaller to fit in that left side area.
With measurements, I can build the holder. No cash, I can buy the battery itself later.

(some nice new motorcycle batteries are completely sealed, and can be mounted in any orientation)

[CatatonicBug]

The sealed battery is definitely the way to go, but I have no idea what other batteries have the guts to suit, but are smaller, as I just go for the stock item. Might head to the store with the electrical specs of the old battery and compare the smaller ones that are available.

[TajMan]

Yeah I got a size for a standard size motorcycle battery I will use.

Basically 6" X 5 3/4" X 3 1/4"

[Geezer]

If I were doing it, I would go to a larger battery and set it up to take those cheap garden tractor batteries... If you like bump starting, I guess a smaller battery is OK...

Geezer