Guy, sorry to hear that sean no longer trading ,in the past I've installed his reg box and dynamo belt kit as well as having the dynamo rewired to 12 v ,all good jobs , however if you look up some of the posts about magmetos you'll see a forum member mentioned along with his regulators and capacitors ,he is very knowledgeable ,helpful and I beleive very well thought of on this forum, best wishes Bob H.