Essex Wheels and Engineering can assist customers in improving engine performance.  It modifies and adapts existing engines to suit customer requirements.

While most of the customers are mainly involved with either grasstrack or speedway racing, this service can be provided for any bike engine.

Engine modification services include:

- tuning

- gas flow

- reboring

- head skimming

- balancing cranks

- lightening cranks

- knife edging

- reseating valves