Long rear caliper securing bolt

shipley Posts: 549
edited May 2012 in Workshop
I've just fitted my new campag brakes (wow dual pivot are excellent - really positive and snappy)

The front went on fine but the rear fork bridge on my Bianchi 928 is quite thick so the supplied securing bolt is too short.

It's a 21cm allen key bolt (see through) and I need a longer one.

Does anyone know where I can source one from ?