21 Research Methodology Baseline Methodology Our dedicated team of industry experts has monitored and analyzed various aspects of global electric two - wheeler market . The team has analyzed the outlook of various segments of this market, while considering the major influencing factors such as growing fuel prices and surging initiatives of the government to escalate the acceptance of emission - free vehicles, including two - wheelers . The study includes market forecasting, which would enable our clients to take better decisions while planning their strategy to achieve sustainability in global electric two - wheeler market . Methodology Followed for Calculation of Market Size : • Market Size by Value & Volume : Market size, in terms of value & volume, for the year 2021 was calculated based on information collected through exhaustive secondary research and primary surveys, with various key opinion leaders/stakeholders, such as electric two - wheeler companies , channel partners, market influencers & end users, industry experts, and other industry participants . • The team interviewed more than 15 – 20 electric two - wheeler companies , 45 – 50 channel partners, 80 – 100 end users, and 15 – 20 industry experts and other value chain stakeholders in the global electric two - wheeler market to obtain the overall market size from 2017 - 2021 , which was validated by the Delphi technique . Taking standard deviation into consideration, the market size was averaged out, to arrive at the market size data from 2017 to 2021 .