The Regina SL chain with the hollow pins is also somewhat more flexible than the ORO, so you can expect a degree of less positive shifting. That is my experience with it. Possibly you can expect the hollow pin one to stretch out faster? Do chains strtch out at the pin, or do the metal side plates stretch?
Dennis Young Hotaka, Japan
> In a message dated 9/10/2004 7:47:18 AM PST, greg@nofatcomm.com writes:
> Greetings:
> A chain question! What are the differences between the Regina Superleggera
> chain and the Regina Extra "Oro" - when did they appear? Are they both
> identical spacing? Both correct for a classic Nuovo Record crank and 5
> speed Regina 'gold' cog? Thanks!
> Greg Arnold nyc
> -------------------------------------------------------
> Greg-
> I think you are asking 2 questions, so I will give you 2 answers.
> Regina ORO is "gold" colred, actually brass plated, and in my hnads works
> fine with 6 speed freewheels and below and of course have no problem w/Campy
> NR
> cranks. Appeared befor my time (1960s)
> Regina SL has hollow pivot pins, weighs about 1/5 less than the ORO, no brass
> plating, appeared mid 80s, slightly narrower spacing than ORO, will work with
> up to 8-speed clusters and below.
> Which one is correct for you? only you can decide that.
> cheers-
> Dave Anderson
> Cut Bank MT