Originally Posted by
gtownviking
You know, to me, it looks like its in good working order. And I counted 6 cogs....don't know for sure but doesn't the "Ten" in Seven Ten mean it's a ten speed, which means the cassette has five cogs?
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Not necessarily. What I've read in several Miyata threads now is that while there may be some coincidental coordination between the model name/number and the number of gears that the bike has, there are also known examples of the gear count differing. In other words, if you convert the bike to 5 cogs you might not have a correctly outfitted bike when done.
But I'm not any expert on these things. I say run it as a 2x6 until or unless you find proof that it's supposed to be a 2x5 setup.