Speedo drive .. increase the diameter of the 'hole'

[Taid]

A while back (as a result of my own incompetence) I came close to having my 16ms rear wheel sieze, destroying the Speedo drive ..

I bought a new one from club spares, but it requires the bore increasing. While debating how to do it, I found one unit (possibly the last) on the net, with the correct bore, and have fitted that one

I still have the club supplied item, and would like to get it modified to the correct dimension, (just in case) ..

Can any of you guys do the job for me, please?

Happily pay for the work

Thanks