Ok, this seems like a really elementary/stupid question, but can anyone confirm which battery fits my 2018 XRT?
This is the first time I'm buying a new battery for the 1200 (been through at least 1 or 2 with the 1050), and what's current installed is a Yuasa YTX12-BS:

(taken from right side of bike, so negative is towards front)
Now the interesting part is that if I check Yuasa's website, they say I need something like a YTX20L-BS
https://www.yuasabatteries.com/batteries/search-results/?vehicle_type=motorcycle&vehicle_make=triumph&vehicle_year=2018&vehicle_model=tiger-explorerThe YTX20L is both slightly longer and taller than the YTX12, and the 'L' indicates the negative terminal is on the Left side (so opposite the YTX12). I've been buying BikeMaster AGM/Gel batteries for years, so I checked their website. Nothing listed for my bike. I found other info on the net that maps their AGM MS12-20L-BS to the YTX20L-BS, and their physical size matches, so I pulled the trigger... I'm not sure what I expected, but I now have the MS12-20L-BS in hand and don't see how it would work. Since I found nothing saying the YTX12 was the right battery I kind of assumed that the PO just put a smaller, cheaper battery in and maybe yanked the cables around. I double-checked the owners manual, and it doesn't seem that a L battery is expected. See below where it indicates that the negative terminal is on the Right side (when you're looing at the batter with the terminals closest to you).

I'm also somewhat interested in Lithium. My latest bike, a 2018 KTM 690 Duke, came with an Antigravity battery, installed by the PO, and it has been great. Starts up strong every time and has maintained a charge all winter so far with no tender. Antigravity's website recommends their ATX20-RS. That model is very similar in physical size (6.8" x 3.4" x 5.1") to the YTX12...
So, which battery is this bike really expected to take?
Site note: why is the Gen3 treated like such a bastard when it comes to parts finders? Half the time the XRT isn't even listed (though I know that almost never matters for most parts), and sometimes even the 2018 MY is missing! In fact, Yuasa doesn't list any batteries for the 2019+!