Andy, the Gardner NSR is owned by Hubert Rigal from France, but it's a non runner. It's missing some electrics control modules and powervalve servos. Hubert took the faring & tank off for us to have a good look inside, first time I've ever seen a V4 NSR 500 engine in the flesh.
The Shell Advance NSR-V is owned by a guy in the UK, I'll have a word with him about Donnington.
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Rich
MC21 Track Bike / RS250 NF5 'Spencer', NX5 'Cadalora' & NXA 'Aoyama' / RS500 / Two Brothers Racing RC30