Upperton Racing is a company dedicated to producing maximum performance from motorcycle engines, whether they be for road, or race use. We have been in business for over 25 years and our experience and knowledge is second to none. Our race engine work has helped riders win races and championships in all forms of racing from SuperMoto right through to Top Fuel drag racing. We specialise in cylinder head modification and preparation and do work for some of the top engine builders in the UK. If your needs are for road/race engine building, crankshaft repairs and modification, transmission work or any engine machining procedures, we can guarantee top quality workmanship and results.