Hello all, thanks for all your replies. I tried BMW dealership, apparently they don't make keys for r100's anymore so the only thing they could suggest is to change all locks - costly! I called a couple of localish locksmiths but they were not interested. I'm not doubting that it can be done this way but as I live in the middle of nowhere, many many miles from civilisation, and I'm working 7 days a week for the next month to save my pennies for the big bike trip I've decided to go with the moto guzzi service. I called them and they were very helpful, for £35 I think it a good deal. I've sent the barrel off, I'll post back here to say how I get on. Tedmagum, it is a simple ignition but the moto guzzi service works out cheaper than replacing the barrel with a new one. New barrel is £67 from motorworks, no doubt I could pick up second hand but don't have the time. Also, this way I get my original shape key back, so I'll still have use of steering lock and be able to get under my seat otherwise I would need to change these too.