TA and Nervar made similar three arm cotterless cranks in that era. It's just possible they all had the same BCD, which would make the number of usable rings out there greater.
Regards,
Jerry Moos Houston, TX.
dddd <dddd@pacbell.net> wrote: Richard Cielec wrote:
I have a Campag., alloy, three arm crank, compleat - dumpster find, actually, attached to an Ishiwata tubing Trek. Are rings difficult to find, either Campag or after market? What model is this? The Gran Sports I've seen are 5 arm.
>>> It sounds like an earlier Gran Sport crank, as was fitted to the early-70's Raleigh Competition. I can remember wanting one of those.
Chainrings? You've gotta be kidding, tho someone here might have something. Many of these cranks probably have narrow range gearing, so you'd be lucky to turn up a 52-42. Which ring do you need?
David Snyder