Join Date: Aug 2008
Location: near Stoke-on-Trent, U.K.
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Fitting new Shimano Ultegra Brake to 1980's Raleigh
I'm in the process of 'modernising' my old Raleigh Pulsar, probably considered a waste of time to most people but the bike has huge sentimental value, and I've started using it again as a commute bike. Anyway, the old brake callipers were pretty useless so I bought a pair of Shimano Ultegra brakes. On attempting to fit them I've realised that the new brakes seem to use a recessed nut, unlike the old brakes which used an exposed retaining/fixing nut. The hole in the front forks is too narrow to accommodate the new nut so I've reamed the rear of the hole so that the nut is a very snug fit, however I'm unsure as to what length nut I should really be using, the standard (10mm) nut only winds onto the pivot bolt threads by about 2.5mm. To keep things 'safe' should I try and locate the longest nut that will fit, like 18mm?
Thanks for any guidance offered!