The exact dimensions of the Zen LX 2001 model can be known from an aftermarket accessory shop or a Maruti Suzuki authorized spare part dealer. You can contact your nearest possible source for exact model and dimensions of the mirror. The Zen comes with a 4-cylinder 993 cc engine, which feels alive but lacks the efficiency factor of a Maruti Suzuki. You can even ask for further accessories like better rear view mirrors and genuine engine oil for better riding experience.