As part of a batch of useful spares I’ve just acquired from another forum member was a alloy top yoke for a R80ST made from an original lower yoke. As the original fork stanchions butted up against the underneath of the original steel top yoke and they now fit inside the alloy top yoke I have the option of extending the tubes using a fork ‘slug’. I could usefully do with a 25mm or 30mm extension. Does anyone know of a suitably sized, threaded slug that would fit these tubes? 36mm tubes by the way.