Needed a new battery for my wife’s Z650 as the OE item was failing after 5 years of reliable service. Having always had a good experience with Yuasa batteries over 30+ years of motorcycling, this YTZ10S was the natural choice. A perfect like-for-like fit for the OE battery in the Z650, but with improved cold cranking amps. Easy to fit and the bike now starts first time every time again. The usual great service from SBS too. Best price online and delivered next day.