happy to oblige. do you have a picture of yours? make, model?
I have a couple, some with wear marks etc, others for bikes with disk brakes etc.
But, and this is the but, I'm not sure when I am next over in Failsworth. But I am at Wythenshawe hospital a couple of times in the near future including this Wednesday and Monday 14th December (which would probably be better for me). Not knowing where in Manchester you are (given your location under your avatar says Hull !)