In the following years, new constructions suitable and relevant to the state of technology of the time were created for example in 1919, the Ransomes, Sims & Jefferies company had created a prototype of an electric motorbike powered from a battery located in a sidecar and named it Orwell [3][4]. As a result of technological advances in construction and materials technology, new innovations were created and presently there is a wide choice of models to choose from. This report will discuss the present state of technology and the design criteria incorporated in a racing electric motorbike which has gone beyond proving performance is possible with an electric motorcycle in comparison to traditional internal combustion engines.

Several specialist electric motorcycles and traditional motorcycle manufacturers have electric bikes in the market which are used as daily transportation as well as for racing or have concepts awaiting to be showcased [6]. Today’s racing motorbikes have mixed performance requirements due to different consumer targets and racing promotes innovation as it gives a chance to push the technology with limited liability to its limit prior to mass manufacture as well as publicising the technology. Examples of electric motorbikes in the market are; KTM Freeride E, Alta Motors Redshift MX, Zero SR, Victory Empulse TT, Brutus V9, Tacita Diabolika, Energica Ego, Harley-Davidson Project Livewire etc which are mainly designed around transportation.

Figure 1 [5] below shows the University of Nottingham electric superbike drivetrain system and components. It has three main parts; battery pack (including the battery management system), power converter and motor as shown in figure 1. It is a typical arrangement with typical main parts of most of the electric motorbikes either intended for racing or transportation in the market and the focus of this report will be based around the main component parts and how they function individually and/or together. They must be optimized as a closed loop system to meet the required use