..I'm putting this one (Odessy PC625) in my bike now..my stock battery is 2 years old and wouldn't start the bike in this cold weather even with the battery tender being left on over night..
..my Honda VTX stock battery is 2 years old and still going strong..probably get a few more years out of it, but I don't think these rocket batteries are much good for any more than a couple of years it seems..but then again, I'm sure it's a lot harder to turn these motors over than it is a V twin..Budman