Reassembling the 1969/1970 Raleigh Pro I recently bought on eBay after treating with Weigle's Framesaver, washing and many coats of wax. I note that the undated Campy NR cranks are 172.5, even though this is only a 21" frame, measures 53 cm ctc. It seems odd to see 172.5 cranks on a frame this small. The undated cranks are of course correct for 1969/1970 and there is no other indication the cranks are not original. Plus if the cranks were replaced, it is likely this occured soon after purchase, since 172.5 is a moderately unusual length, and finding an undated 172.5 would have been a little difficult many years later.
Anyone remember these bikes coming with 172.5, even in smaller frame sizes? Any guesses if this could in fact be original?
Regards,
Jerry Moos
Big Spring, Republica de Tejas