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Shimano deraileur Part numbers(4 posts)

Shimano deraileur Part numbersDan Ida
May 15, 2001 7:04 PM
I have a pair of deraileurs that I am wondering about. Are they 7 or 8 speed era? The part numbers are RD A 410 and FD A 410. On the front deraileur it also says "triple 63-66". Please interpret
re: They are 7 speed RSX...nmJohnnyP
May 15, 2001 10:27 PM
more questionsDan Ida
May 16, 2001 4:04 PM

What do the other numbers triple 63-66 and double 61-66 mean? Is the front deraileur for the small diameter 46 tooth chainring or the larger 52 tooth chainring? Or can it be used with either?

more questionsSydnie
May 16, 2001 6:53 PM
Duno for sure about the double or triple numbers other than possibly for double or triple chainring. Front derailer for triple will have deeper inner cage. RSX 7 speed used the 46 tooth largge ring and a derailer matched to it. I tried one on a 52 tooth chainring and it was a no -go...cage curvature was wrong.