Recently, whilst trying to assemble components for my 80's Atala, to my dismay I could not mount the Suntour Sprint brakes with recessed allen bolts on the frame. Yes, thats right, even though my Atala is of the year 1987 (years after recessed allen bolts became standard) it was made for 'older' 1970's style nutted brakes. Mercian Cycles gladly drilled out the fork crown to fit an allen bolt just fine, but they refused to drill the rear brake bridge because they said it would 'weaken it'. I mulled over drilling/grinding it myself but I trust Mercian's frame-modification repertoire.
I know tektro do make modern brakes with a nutted fitting for older frames, and SJS cycles just sell the bolt part for some models of modern dual pivot Tektro and Shimano models: http://www.sjscycles.co.uk/tektro-tektr ... prod24266/
But I really want to run the Suntour Sprint brakes to keep everything period correct and to match the other Sprint groupset parts on the frame. I thought about getting some stock all thread and grinding it down. The only other thing I can do is get my hands on another Sprint front brake and mount it at the rear where it will be long enough to put a nut on it. But Suntour Sprint brakes are very rare and go for a high sum on ebay.
My question is, if you were to adapt recessed allen bolt brakes to a vintage frame for nutted brakes, how would you do it?
_________________MTB1995 GT Tequesta custom chocolate (winter XC and rugged touring)
, 1998 Sunn Notion
, 2012 On-One Scandal (XC Race)Road1987 Atala Corsa Columbus Aelle (winter bike)
, 1989 Scapin Atec Columbus Cromor (set up for time trial)
, 2012 Bob Jackson Olympus Reynolds 631 (summer best)
, 2012 Planet-X Kaffenback (cyclocross, 700c tourer)
Bring back the old channel 4 Tour de France theme tune!: http://www.youtube.com/watch?v=q0FchiH9NPs