My 2016 CFMOTO Zforce 800 still has its original battery - I decided to replace it since I feel its overdue but am having trouble locating one - A quick search on ATV parts sites and EBAY does not list any replacements in the USA - Anyone know of a supplier or a part number I can cross reference to aftermarket ?

[2015 Z Force 800 53/Trail EPS]

This is the one I put in my 2015. Was the same as what it had. Should be the same as yours:

https://www.amazon.com/gp/product/B0022XTZO0/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1