... of motorcycle engines with balance shaft, such as Yamaha, Jianshe, Zongshen etc.4, Partners: Honda,Yamaha,Suzuki, Mitsubishi, BMW, Polaris, Kohler , Briggs&Stratton ... , Bajaj India, TVS India, Daelim Korea, Hyosung Korea, Zongshen, Loncin, Jianshe, Lifan ...