..... that'll fit in the OEM battery box on my 1991 R100GS. Since the stock alternator is rated at 280W at ?? rpm, I'd like to have the added assurance of a larger electrical 'bank account.' Thinking 25 - 30ah. Now that's she's had her top end rebuild, I'm thinking about some traveling late spring early summer on the old gal, and not considering adding a higher output charging system at this time.

Thanks .... Bob