Is it possible to promote RD ghost shifting by having too much cable tension?

Thanks.

J

Yes.

-Kurt

That's it!I thought so but I don't recall ever reading it. And have never experienced it before.

Is it so esoteric or unlikely a factor (too tight) that it could vary by marque or model? Any rule of thumb or technical method you use to git right from the git-go. Or is it a matter of refinement between stand and road adjustment?

Thanks, Kurt.

Julian

Assuming you are asking about a friction shifting system. Then only if you have a very flexible frame and/or a very large/strong person. "Ghost shifting" is caused more by shifters that are not adjusted tight enough. For a friction system cable tension should just be snug, not crazy tight. But it should not matter too much if the shifters are adjusted properly.

It can also be caused by worn out housing or cables, or frequently from road grit on the guides under the bottom bracket.

I've also heard that it can be caused by ghosts...ask her:

Thanks for the input guys. It is a friction system, but everything else you mention is already accounted for - NEW - including my favorites and the best shifters I know of - Simplex retrofriction. The one thing I notice out of the ordinary is the unusually taut tension compared to past setups and experience. I was looking for a little stretch to settle it out.

I would have gone ahead on my deduction even absent Kurt's cryptic, spare comment. I do trust his knowledge on these kinds of matters. Heck, he even has videos.

I'll report back soonest. Including details on drivetrain and frame. It has happened only 3-4 times and always when I am mashing.

J

I vote for calling in Jennifer Love Hewitt.

I wholeheartedly concur (obviously )

It was happening to a friend of mine over this past weekend. When she was pedaling at a constant cadence or accelerating there was no issue, but if she coasted and then resumed pedaling she'd get ghost shifts.

Problem turned out to be a shot RD. The joints in the parallelogram were badly worn out and at rest you could move the RD about 1.5 cogs space in either direction. Trashola. Swapped in a new RD and everything was perfect.

You mean worn out parts affect performance? Pshaw! Perish the thought!

right? who knew!

Wow a thread with Jennifer Love Hewitt in it!

Can my day get any more better!!!!

Thread sabotage ..........but I'll allow it since I already got my answer.

You all can have the dadblame thing all to to yurselves now. While I plan revenge.

J

Sorry, any chance to post a pic of JLH must be taken advantage of. My apologies for the hijack...

No problem, have at it. I know your intent is good natured.

I'm done, post more pics ........ show more eerrr..... body parts, a bare shoulder, an ankle.......Show some imagination.... (my favoritesmileyface)

J

Let's see her in Lycra, (or wool, since this is C&V), astride a panto'd Italian steed!

way too easy to get this to the gutter...

I'm talking about a road bike, numbnuts!

That's what I'm talking about...... "Let me help you with your bike, dear......"