Gabriel,
My 2ยข...
Since it's a Ron Cooper and it's set up for center pulls, why not go with GB Coureur 66 center pulls? Or the 88s that superseded them?
If you want side pulls, how about GB Sport MKIII's (first on the market in '58 but still around in '70). Dave Marsh of Universal Cycle Centre has NOS sets with Arret levers complete with cables. May have some on eBay now (eBay handle "carltoncycles").
Pete Paine (oldcyclebits) has/had some black GB Superhoods up, too, that will fit the levers.
gabriel l romeu wrote:
> for a 1970 Ron Cooper frame.
> this may be a fairly basic question, but I was thinking of installing
> a set of sidepull brakes on this frame that was obviously centerpull
> originally. I have a set of centerpull calipers, but none of the
> ancillary bits, though I can machine interesting subsitutes.
>
> My question, which also holds for a KOF Track bike that I would like
> to add a rear brake to (already drilled), is that the hole diameter is
> too small for the sleeved nuts that all my calipers have. I am not
> willing to ream anything out (except the seller of the frame that
> removed the original components).
>
> Is there a particular set of calipers I should be looking at or should I
> go with the universal centerpulls?...gabriel
--
Phil Sieg
Knoxville, Tennessee