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Old 01-31-09, 11:10 AM   #1
pear7777
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Shimanio Tourney "works inverted"

Hi,

Picked up a replacement Tourney for my damaged one.

After placement I noticed it worked inverted from the previous one:

When the shifter is on "1" the gear's in "7" and vice versa.

The shifter came without manual, and I've been googling for some time now: no Luck.

There is a dice on it with the tekst "directional pulley" on it.

I'm reluctant to start unscrewing this n that,

So i ask you, maybe you know if there is a way to "invert" this inverted derailleur?

Thanx in advance
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Old 01-31-09, 11:14 AM   #2
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I'm afraid not. Shimano call this a feature and have given it a name, rapid rise. Aside from running in reverse it will work fine.
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Old 01-31-09, 11:16 AM   #3
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The replacement you have is called "Rapid Rise" so the spring is reversed. It enables the spring to pull the chain into an easier gear, which in theory should make it a better shift when you are climbing hills.
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Old 01-31-09, 11:23 AM   #4
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Tourney was also offered in "Rapid Rise" meaning that the rear derailleur spring holds it in the lowest gear and the shifter cable pulls it to the higher gears. This is the reverse of the typical setup. My guess is that you have a mixed set of components with your replacement shifter. Either the deraleiure is Rapids Rise and the new shifter is not or the other way around. Either way, the spacing is the same and it will work just fine. The only caveat is that the labels will be wrong. I never use the labels myself so it wouldn't matter to me if the price was right on the shifter.
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Old 01-31-09, 11:27 AM   #5
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I'm afraid not. Shimano call this a feature and have given it a name, rapid rise. Aside from running in reverse it will work fine.
AKA "Low normal"
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Old 01-31-09, 03:07 PM   #6
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Thanks very much for the quick answers.
I installed a new "rapid rise" derailleur, I said "shifter" but it is the deraileur.
As you state the spacing and shifting works fine I didn't mention that.
But we'll manage with that.
I understand this Rapid Rise technique, you're shifting down a bit quicker,which is an advantage
The numbers are not that important..
Thanx again - problem solved.
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Old 01-31-09, 03:45 PM   #7
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Come to think about it, in this "rapid rise" system, the two springactions in the derailleur work together, making "shifting to normal" quicker and 'firmer'.

In the "standard" system the two springs counteract, since the "shifter spring" is pulling the chain to the largest sprocket in the casette, while the other spring is trying to tighten the chain.

This makes shifting to "normal" more liable to error and slower than in the "rapid shift" system.

So "Rapid shift" makes shifting "up" AND shifting "down" better, so I've bought the better choice!



/edit NOT!!! this is completely WRONG, read ahead, it's the other way round and the advantage I mention is for the good old "conventional", "High Normal" derailleurs!!

Last edited by pear7777; 01-31-09 at 06:09 PM.
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Old 01-31-09, 03:52 PM   #8
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The replacement you have is called "Rapid Rise" so the spring is reversed. It enables the spring to pull the chain into an easier gear, which in theory should make it a better shift when you are climbing hills.
I'm thinking it's more likely that the replacement is a conventional "high normal" Tourney and he has replaced a "rapid rise" Nexave. If that's the case, I'd say that he has made an excellent move. I HATE Nexave derailleurs.
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Old 01-31-09, 03:59 PM   #9
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I'm thinking it's more likely that the replacement is a conventional "high normal" Tourney and he has replaced a "rapid rise" Nexave. If that's the case, I'd say that he has made an excellent move. I HATE Nexave derailleurs.
Nah, I checked, and the replacement is a Tourney "rapid rise", sorry, but as i stated I think it's a good choice.

What's wrong with the Nexave derailleurs?

/edit: added "Tourney"

Last edited by pear7777; 01-31-09 at 04:04 PM.
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Old 01-31-09, 04:03 PM   #10
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What's wrong with the Nexave derailleurs?
They work fine when everything is new and clean. Once they get a little dirty, however, there's not enough spring tension to pull the derailleur up onto the larger cogs. This is made worse because you're likely to be pedaling hard uphill when you have to make the downshift.

With a standard derailleur you can force a downshift by using a little more thumb pressure.
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Old 01-31-09, 04:54 PM   #11
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They work fine when everything is new and clean. Once they get a little dirty, however, there's not enough spring tension to pull the derailleur up onto the larger cogs. This is made worse because you're likely to be pedaling hard uphill when you have to make the downshift.

With a standard derailleur you can force a downshift by using a little more thumb pressure.
???!!! You got me running to the shed, (its midnight here in Holland, and cold) to check on what you say, since it is exactly the opposite of what I state in my "happy post" and I've started eating ma hat now, since your completely right!!

This "lucky mis-buy" is a serious "mis-buy".

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Old 01-31-09, 06:04 PM   #12
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???!!! You got me running to the shed, (its midnight here in Holland, and cold) to check on what you say, since it is exactly the opposite of what I state in my "happy post" and I've started eating ma hat now, since your completely right!!

This "lucky mis-buy" is a serious "mis-buy".

All's well that ends well. I'm glad that you're happy.
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Old 01-31-09, 06:23 PM   #13
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???!!! You got me running to the shed, (its midnight here in Holland, and cold) to check on what you say, since it is exactly the opposite of what I state in my "happy post" and I've started eating ma hat now, since your completely right!!

This "lucky mis-buy" is a serious "mis-buy".

Surprised to hear that bikes are kept in sheds in Holland; after all the good things I've read about bike culture there, I assumed bikes were allowed into the warmth of the Dutch home.
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Old 02-01-09, 03:56 AM   #14
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Surprised to hear that bikes are kept in sheds in Holland; after all the good things I've read about bike culture there, I assumed bikes were allowed into the warmth of the Dutch home.
I will not do 10 (though would do more if allowed) of these
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