Hi forum members! This is my first post, so please be gentle. If I am asking an extremely obvious question I apologise!
I purchased recently this week a Holdsworth 531 Special and I intend to restore it to its former glory. I am not 100% sure of it's production year but it is currently fitted with Huret rear derailleur and shifters, Zeus crank and Suntour rear cassette. On the frame it states that it was a Holdsworth Campagnolo set so I am assuming it was originally fitted largely through out with Campagnolo components and I want to get them back on the bike.
I have purchased a Campagnolo nuovo record derailleur, set of down tube shifters and front gear shifter. I wanted to know what rear cassette (5 speed) would usually come combined with a Campagnolo nuovo record group set if that makes sense?? Is it likely that it would genuinely be a Suntour one, or an I right in thinking it is more likely to be a Regina or is it just down to personal preference?? I would like it to be of a chrome/polished finish if possible rather than black.
Any advice or recommendations would be appreciated.
Holdsworthy were Campagnolo's main (I think) UK commercial connection for a number of years. As a framebuilder and retailer under the Holdsworth name, they fitted a lot of Campagnolo to their bikes and sponsored heavily with frames and groupset parts in the 60s, 70s and into the early 80s.
There is an interesting history of the company here: Holdsworth
So - depending on the time at which the frame and group were made, likely the freewheel (not a cassette at the time) would have been something like Regina or Everest. Again, depending on the vintage, it might have been 5 or 6 speed and the traditional racing ratios were often "straight through", so 13-14-15-16-17 or maybe "stepped" 13-14-15-17-19
Finishes on sprockets were typically flat silver - not chromed.
Unfortunately the shop closed late last year ... but there are sources of information out there which can identify your frame, it's age and from that, you can probably, with a bit of digging, get an idea at least of what parts were likely to have been fitted so that your restoration will be period-correct, if not an absolute restoration of that machine as it left the shop.