Shorai lithium. Never had a problem with them.
So small and light, one can get a higher cold-cranking amp with hardly any weight penalty.
I bought a Shorai LFX19A4-BS12 (19Ah) for my Speed Triple with 285 CCA, at 2.85 lbs.
As I said, not cheap at around $160, but if you have no power draw (or current drain) when switched off, they will keep a charge forever.
I have one that lost only .02V after 3 years of sitting on the shelf.
Just remember, they are different technology than lead-acid and one must observe the operating limits, or they will be toast permanently.
But in typical riding conditions, this is not an issue.