Aye Notnats,
Welcome to the loony bin

or comfy old leather Chesterfield with a malt at your side!

A little 'Googling' produced this article:
DR385_articleAnd this one from the 'Valleys', which could light up a few lights amongst the "Arbenigwyr silindr Sengl y Rhondda" or "gwrth-gymdeithasol gyrwyr beiciau modur o goedwigoedd Cymru" as others may refer to them!
VDSRThis place in the States gives some idea of whats available:
Pro-cycleand finally, this man who distributes Wiseco products over here in the UK. Good old fashioned service and knowledge available, when I have bought stuff for an SRX600:
Eastwood_RacingAll the best and I hope you get the beasty up and running.
regards, Bill.