Got mine off ebay, under "Triumph" listings. I beleive it's the only one I've seen on ebay, but it's not any of the above shown. However, the "buy it now" price is either $39 or $49.00, and I got mine for $26. It's worked perfect for one - two years now, and I haven't replaced the original battery yet. It mounts directly to the triple tree top nut.
