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Old 03-19-18, 02:57 PM
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Originally Posted by ThermionicScott View Post
I believe the first 7-speed freewheel was a SunTour, in 1978. Citation pending on that...

But I think the first 6-speed freewheels were in the late 60's, so as the mid-70's progressed you saw bikes opening up to take those. Ultra-6 came way later than regular 6, so it wasn't a case of "expanding ultra-6."
So Ultra 6 was more of a bandaid for the old 120mm standard to make those bikes competitive with the standard 6 speed bikes? That makes sense.

How were 6 speeds used in the '60s before 126? Just too much dish and lots of broken spokes?
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