Thanks AndyB/Guido, i have just purchased a splitter/Riveter about 20 mins ago! turning out to be expensive this, i only wanted to change the gearing and have ended up buying
Talon 40T sprocket
Talon carrier
Afam Chain
Chain Riveter
Best part of £240
Ah well at least the bike should be spot on by tonight
Thanks Chaps mucho appreciated as ever
Darren