You don't need them. In the US market quantity means quality. The Yuasa I run now is the YB12A-A. It claims to have more CCA than the conventional 12N12A-4A-1. But the next one will be the old type again. First of all: you don't need extra CCA. If your bike doesn't start within some 7 seconds, better stop trying. There will be a cause that needs to be adressed. Moreover, our bikes have a kickstart as back-up. The old type 12N12A-4A-1, costs € 3,- more (!) than the newer type YB12A-A... The extra CCA the YB has, means thinner plates than the old type has. Less robust than the old type on bumpy roads.
