Originally Posted by
Andrew R Stewart
The second issue is that the OEM rings likely hade shift aids, tooth sculpting/shapes that better allow the chain to climb off the current ring and thus shift onto the next smaller ring. These Sugino rings look to not have this feature. Andy
This,
I re-installed the middle OEM ring and noticed the "shift aids", shifted fine from middle to small ring. The OEM middle ring does have a couple of bent teeth. I'm thinking of just getting a replacement crankset, but most are for a ~120 spindle length, I have 110. Still looking. Or maybe just move the large ring to the middle position and ride it as an 8 speed, pretty flat where I'm at.