Hello

I have a yellow Jack Hearn from the 70s, working on a more exact date.

Anyway I'm after some advice and tips on the best kit for the period


It was in a shocking state and i've managed to save the frame, forks, seat post, handle bars- virtually no rust and in good condition


The mafac racer brakes seem to be fine to and I'm thinking I'll keep them as the reviews I've read said they are decent


The only other thing that is useable are the brake leavers, Mafac, which don't seem very good


It was fitted with a simplex front and rear derailleur, rusted and completely done- are these any good?

I've read up a little on Jacks bikes and it seems he favoured Campy, what do you think would fit?


I havent taken the bb and crank off yet to inspect but suspect the bb will need replacing at least.


I have some campy, 27" wheels which will go nicely


after any hints or tips


thanks

I've done some research and it seems suntour cyclone were about the best groups of the period? Any thoughts?

I think Cyclone from this period is fantastic stuff. It's light, functions excellent and looks like jewelry.

Keep in mind that the front derailleur from this period had an integrated housing stop, so you may want to consider that depending on the details of the frame and any bolted-on bits for the cable routing.

Thanks Diego
seems cyclone isn't too difficult to find here in the UK either.
looking at crank options now, the maxy one fitted looks alright, just looking for reviews of what was decent at that time.