Originally Posted by
jcinnb
Yeah, I'm about to fold um...two final questions.
1) Can I use a piece of pvc pipe (the heavy stuff) for a spacer (short term) until the real deal gets here?
If the diameter is right, I don't see why it wouldn't work. The PVC
is soft so go easy on any compression you might put on it.
Originally Posted by
jcinnb
2) I routinely adjust my chain and rear derailleur and get very smooth, precise shifting as I start out, but over time 8 - 10 mile mark, shifting gets mushy, and degrades to the dreaded "auto-shift", randomly. I am gravitationally challenged. Pretty severe. Is my weight causing "stuff" to flex back and forth to the extreme that the adjustments are negated. I have a Jamis Coda Elite, a pretty good quality steel frame, but this is getting tiring. Is there a solution, if flexing the frame or flexing something, due to my weight, is messing up my derailleur?
Help. .
You say that you adjust the chain and rear derailer but did you adjust the cable tension? Cable tension is the most important part of the equation. If you haven't do so already, check the Park Tool website on
derailer adjustment. Ignore the first half down to "Checking the Rear Indexing Adjustment" unless you are having overshifting problems.
If you have loosened the anchor bolts to adjust cable tension, I'd check them too. If you don't tighten them sufficiently, the cable can slide under the bolt and result in reduced cable tension.