they are coming out with a new gerneration, with stronger terminals. i know this cause my friend and i called and spoke with them about the terminal design and how it could be better. they agreed and now are coming out with a new terminal.
other than that, the case the quality the price you can go wrong.
i used the 12amp one on a 750 gsxr. and a stock 1000. i was going to try it on a zx14 but i couldnt get my hands on the bike. they act just like any other lithium ion they seem week at first then as you crank they warm up and work fine.
i guess the one bigger size the 14 amp would be sufficient for bigger motors, but i dont no how theyd act on strokers. although using 2 12 amp batteries, is still lighter than one stock battery by a few pounds.
I installed last month in a KTM 990 Adventure. Used the 18amp size and it works great. The terminals are ok so make sure you have slack in the battery leads so you do not put extra tension on the post. It was 1.8 lbs vs. the 12 lbs stock on my KTM.
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