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English 3 speed shifter cable routing

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English 3 speed shifter cable routing

Old 05-03-12, 07:52 AM
  #26  
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The steel one doesn't break -it happens. Usually it just fractures at the lip allowing the cable to slide off at an inopportune moment.

Really the plastic pulley wheel isn't as big a deal as the plastic fulcrum sleeve which has a bad reputation of giving out on older 3-speeds. They are really only good for 15-20 years of service life (whether the bike is ridden or not) and after that period tend to just degrade and allow the cable to slide through the cable-stop and create shifting problems. The steel fulcrum sleeves are quite sought-after because of this but really a new plastic sleeve will make a bike shift like new and be good for another 15-20 years.

I think that the hubbub around the plastic fulcrum sleeve has spilled over onto the related plastic pulley wheel as both used to be steel and both were replaced by plastic units in later bikes. The Pulley wheel in plastic is OK as long as it doesn't get bonked and breaks the lip off. I suppose as the plastic ages it gets more brittle too.
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Old 05-03-12, 05:55 PM
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Originally Posted by silvercreek View Post
Is there anything particularly wrong with the plastic pulley wheel that warrants a steel replacement?
Not really but they do get brittle with age and may fracture without warning. I also like the look of the steel. IIRC my old Sports (1971) still has the original plastic one on it, but it really should have been replaced a long time ago, it is not really round any more...

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Old 08-28-12, 11:50 PM
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By having the gear cable routed on the downtube. Has anyone ever experienced the back of their heels clipping the cable? This happened to me a few times since I switched from routing on the top tube to down tube.

Is there a fix for this?

sorry to hijack the thread!
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Old 08-29-12, 04:30 AM
  #29  
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Originally Posted by lonelybikeboy View Post
By having the gear cable routed on the downtube. Has anyone ever experienced the back of their heels clipping the cable? This happened to me a few times since I switched from routing on the top tube to down tube.

Is there a fix for this?

sorry to hijack the thread!
Never had that problem, re-route it along the top tube?

Aaron
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Old 08-29-12, 05:59 AM
  #30  
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Originally Posted by lonelybikeboy View Post
By having the gear cable routed on the downtube. Has anyone ever experienced the back of their heels clipping the cable? This happened to me a few times since I switched from routing on the top tube to down tube.
yes, as was mentioned earlier in this thread:

Originally Posted by mparker326 View Post
My issue with the lower mount is that the heel of my big foot sometimes hit the cable.
Originally Posted by lonelybikeboy View Post
Is there a fix for this?
Yes, switch the cable routing back to the top tube.
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Old 08-29-12, 06:24 AM
  #31  
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Thank you wahoonc and rhm
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Old 08-29-12, 08:01 AM
  #32  
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Anybody route the cable through the top tube...throught the stay? Then and only then I'd bow in all humility to those who run top tube and say nay to the down tube passage.

Not for nothin, I do understand the top tube run advantages, but......... I've been running a downtube cable for the last 3 years on my daily rider, repaired a few tubes roadside and have never had an issue with adjustment...even with my size 12's ticking the cable on occasion. I haven't experienced any of the "disavantages" named in the above posts and as an advantage, the down tube run under the BB doesn't require a pulley...as I see, it on less part to fail.....just my experience, in the spirit of fair and balanced reporting. Good Day
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Old 08-29-12, 08:38 AM
  #33  
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Yes, yes, we know, we know. It's all good. Top tube is just, well, better.

Put it like this: which do you prefer, good beer, or better beer? I like them both. But I prefer the better one.
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Old 08-29-12, 03:35 PM
  #34  
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Do girls have this option? If not, I call "Foul".
STS
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Old 08-29-12, 03:57 PM
  #35  
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Hmmmm.....

Put it like this: which do you prefer, good beer, or better beer? I like them both. But I prefer the better one.
I was thinking it was more like the difference between Belgian Tripel and a Lager....Both beer, both damn good, but different.
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Old 08-29-12, 04:52 PM
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All of mine came from the factory routed along the top tube, so I left them that way. Also on more than one occasion when the shifter/hub was being cantankerous I could reach down and pull and release the cable to get it to shift into the gear I wanted.

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Old 08-29-12, 05:33 PM
  #37  
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Also on more than one occasion when the shifter/hub was being cantankerous I could reach down and pull and release the cable to get it to shift into the gear I wanted.
And without spilling a "spot of tea" I'd assume....Good show old man, good show! I jest of course about the tea.

All of mine came from the factory routed along the top tube, so I left them that way.
Yes of course, unless you bought a Pashley Clubman, then the routing would be from the down tube (gasp!) Comes that way straight from the chaps bench! Then again, what do the English about building 3 speeds anyhow?

Last edited by Velognome; 08-29-12 at 05:37 PM.
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Old 08-29-12, 05:53 PM
  #38  
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Originally Posted by slowtostart View Post
Do girls have this option? If not, I call "Foul".
STS
Yes, girls have the option, but it isn't very elegant!
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Old 08-29-12, 08:33 PM
  #39  
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Don't think its 'posed to be elegant
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Old 08-30-12, 03:51 AM
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Originally Posted by Velognome View Post
And without spilling a "spot of tea" I'd assume....Good show old man, good show! I jest of course about the tea.



Yes of course, unless you bought a Pashley Clubman, then the routing would be from the down tube (gasp!) Comes that way straight from the chaps bench! Then again, what do the English about building 3 speeds anyhow?
As long as it is "sweet tea"...

Somewhere around 1979/80 Raleigh started routing them along the downtube. All of my bikes are older than that.

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Old 08-30-12, 06:03 AM
  #41  
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The not-so-elegant option for girls is to put the fulcrum on the top tube, a pulley where the top tube meets the seat tube, and a second pulley where the seat stays meet the seat tube; so the cable is extra long and makes a prolonged N shape. This routing has the same advantages of the top tube routing on a man's frame. But as has been mentioned, these advantages are not really necessary; so I'm not sure whether this routing is really preferable to running a housed cable all the way to the chain stay.
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Old 08-30-12, 06:37 AM
  #42  
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Originally Posted by slowtostart
Do girls have this option? If not, I call "Foul".
STS


Originally Posted by Photogravity
Yes, girls have the option, but it isn't very elegant!
and the reply

Originally Posted by rhm
The not-so-elegant option for girls is to put the fulcrum on the top tube, a pulley where the top tube meets ..........
So, I'm thinking, we're not all on the same page are we?
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Old 08-30-12, 07:51 AM
  #43  
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Originally Posted by Velognome View Post
So, I'm thinking, we're not all on the same page are we?
I don't speak for Photogravity. It sounds to me like we need to get together in one room with suitable refreshments and hammer out a platform that's agreeable to all members of the IGH party. I suggest we do this at my LI house this friday, then take our IGH's for a nice long ride on Saturday.
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Old 08-30-12, 08:12 AM
  #44  
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Sounders wonderful...I'll leave NJ last week to beat the Labor Day traffic on LI

Good to see you're being a "Sport" about it, other than timing...sounds like a "Superb" idea. I'll be "Lenton" you know when I can get away for a weekend!
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Old 08-30-12, 09:08 AM
  #45  
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Good. That'll raleigh be a good way to raleigh our spirits.
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Old 08-30-12, 10:53 AM
  #46  
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That "saddles" it then!
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Old 08-30-12, 03:44 PM
  #47  
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Originally Posted by rhm View Post
I don't speak for Photogravity. It sounds to me like we need to get together in one room with suitable refreshments and hammer out a platform that's agreeable to all members of the IGH party. I suggest we do this at my LI house this friday, then take our IGH's for a nice long ride on Saturday.
Originally Posted by Velognome View Post
Sounders wonderful...I'll leave NJ last week to beat the Labor Day traffic on LI

Good to see you're being a "Sport" about it, other than timing...sounds like a "Superb" idea. I'll be "Lenton" you know when I can get away for a weekend!
Originally Posted by rhm View Post
Good. That'll raleigh be a good way to raleigh our spirits.
Originally Posted by Velognome View Post
That "saddles" it then!
Dag guys, but unfortunately I'm unavailable this weekend. Even if I summoned the strength of Hercules, I simply can't make it.

BTW, those are *horrible* puns!

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Old 08-31-12, 10:01 AM
  #48  
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My daily rider has it routed down the downtube and I have had a lot of issues keeping it in adjustment. I switched to indexed housing with less bends and it lessened the issue, but it is still there to some degree. I will probably be switching to a pulley on the top tube when I get the time to deal with it.
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Old 08-31-12, 10:30 AM
  #49  
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I can't see how a down-tube/under-the-BB routed Sturmey cable would be any more prone to indexing issues than one that was run over a pulley -regardless if the pulley was mounted at the top or the bottom of the seat tube. If you are having indexing issues then it is either 1 (or more) of these 4 things:

*Cable/housing is shot
*Bad//failing fulcrum sleeve/loose clip
*Trigger shifter is messed-up
*Hub needs rebuilding/gummed-up

The indexing of a tuned & clean S-A hub is nowhere near as tight or as important as it is on a modern indexed derailleur system and these do just fine with he under-BB routing system.

The real adavantage of the top-tube routing is getting the cable out of the way of the chainline. It's OK 99% of the time but when someone changes a tire or removes the rear wheel it is REALLY EASY to mess the cable up if it gets caught in the chain/chainwheel. Once kinked, the cable will have "spring" in that kink and will cause hard-to-diagnose indexing issues from then on. Running the cable overhead keeps it safely away from the chain. It can't be done on a step-through frame so that is why step-throughs have the lower pulley -it can't be helped. But running it overhead is better if there is a top-tube to run it along.

But the difference between a pulley or an under-bb slider? No difference -or none that would make any difference in an otherwise healthy bike & hub.
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Old 08-31-12, 07:40 PM
  #50  
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Originally Posted by Amesja View Post
I can't see how a down-tube/under-the-BB routed Sturmey cable would be any more prone to indexing issues than one that was run over a pulley -regardless if the pulley was mounted at the top or the bottom of the seat tube. If you are having indexing issues then it is either 1 (or more) of these 4 things:

*Cable/housing is shot
*Bad//failing fulcrum sleeve/loose clip
*Trigger shifter is messed-up
*Hub needs rebuilding/gummed-up

The indexing of a tuned & clean S-A hub is nowhere near as tight or as important as it is on a modern indexed derailleur system and these do just fine with he under-BB routing system.

The real adavantage of the top-tube routing is getting the cable out of the way of the chainline. It's OK 99% of the time but when someone changes a tire or removes the rear wheel it is REALLY EASY to mess the cable up if it gets caught in the chain/chainwheel. Once kinked, the cable will have "spring" in that kink and will cause hard-to-diagnose indexing issues from then on. Running the cable overhead keeps it safely away from the chain. It can't be done on a step-through frame so that is why step-throughs have the lower pulley -it can't be helped. But running it overhead is better if there is a top-tube to run it along.

But the difference between a pulley or an under-bb slider? No difference -or none that would make any difference in an otherwise healthy bike & hub.
Apparently there were some issues somewhere on some bike where the bottom bracket flexing would cause the bike to shift into a gear and back out. On an AW going neutral at full steam can be painful.

Aaron
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