Motocross vs. Yuasa | Which is the Best Motorcycle Battery? http://www.batterystuff.com/blog/motocross-vs-yuasa-which-is-the-better-motorcycle-battery-.html You might be considering a replacement battery, and you're not sure if you can trust another brand. Maybe you got 7-8 years of life from your OEM (Original Equipment Manufacturing) battery. Can a brand like Motocross compete with that? Read the article to find out. The answer may surprise you.