Gosh I missed that racing business and all those late nights in the shed
One of the footrest bolts broke in the thread. I have already drilled it to try and extract the rests of it but no luck so far. I do not really want to drill more, as I might start ruining (if not already done ) the thread.
Please don't break the stud extractor in the hole as its a specialist job to get them out. I would not take the risk myself unless the thread is fairly loose. Drill the hole out out in gradually increasind increments until you can pick the threads out. If (like me usually) you don't manage to start exactly in the middle and you damage the threads then you may have to resort to a helicoil.