Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
https://www.tayna.co.uk/YTX14-BS-Varta-Powersports-AGM-Motorcycle-Battery-512-014-010-P186.htmlI've bought from this supplier with very good service so far, same battery also from Amazon maybe better delivery cost depending on any concessions you get. I'll not argue with the other options offerered above as I've not tried them, but I'm very impressed with these AGM Varta batteries both on cars and bikes. Any examples I've used or recommended to others show a remarkable ability to maintain voltage with no use and always start the engine when asked.
I have always used rob hunter lead acid batteries, never had any problems, I use an Optimate when laid up and check the charging system every few months, I usually get around 4 years out of them.