Old 02-08-24 | 06:15 PM
  #8  
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Bill Kapaun
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Joined: Feb 2007
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From: Mid Willamette Valley, Orygun

Bikes: 87 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds. 2019 Giant Explore E+3

Originally Posted by RH Clark
........There is no rhythm to it even keeping a steady pace on the smooth track testing it.
Stay in the same gear for an extended period at the same cadence, then time the intervals to prove/disprove some harmonic condition with 1 or 2 specific chain link(s).
Edit- Or maybe your chain is too tight and an out of round chain ring & out of round cog....
Did the new cassette have a larger "biggest" cog and you didn't add length to the chain?
Elliptical chain ring?

Last edited by Bill Kapaun; 02-08-24 at 06:19 PM.
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