Gelijk aan Yuasa YB4L-B. Merken: APRILIA, BENELLI, CAGIVA, DERBI, GILERA, HONDA, PIAGGIO, PIAGGIO - GILERA, SUZUKI, YAMAHA. Types: All Models, Bullit, CE50 Riva Jog, CG50 Riva, CW50 Zuma, CW50 Zuma II, Easy Moving, K3, Mojito, NB50M Aero, NN50MD Gyro, NQ50 Spree, Quartz, RS50, Sactto, Sfera 50, Sfera 80, SH50 Riva Razz, SP200, SP50, SR50, Stalker, Stepper 125/150, Storm, Top Rally, Typhoon, W4