Jtek Shiftmate 1 help needed

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fredN4
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Jtek Shiftmate 1 help needed

Post by fredN4 »

Hi
trying to fit the shiftmate 1 to a bike running ten speed campag shifters, 10 speed campag RD with Shimano 9 speed cassette. entered cable via the small pulley groove, which when viewing from the back is on the left as I read the instructions. I have fitted an in-line barrel adjuster. when I try to index I need to add plenty of tension to get the RD to shift. It then shifts OK until about the 5th cog when I run out of clicks! I reduced the length of the rear outer cable to get the shiftmate to fit snugly against the derailleur. Not too tight I hope.
Cables inner and outer are new.
Any thoughts please.
Thanks
Fred
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fausto99
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Re: Jtek Shiftmate 1 help needed

Post by fausto99 »

When I get this type of problem I often find that the cable wasn't really tight when I did up the pinch bolt on the RD. One of the ferrules was not properly seated or I hadn't made sure the shifter was clicked to the fully slack position. Worth a check?
PH
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Re: Jtek Shiftmate 1 help needed

Post by PH »

It's a few years since I fitted mine and it's a different model and combination, but I have a vague memory of having to turn the pully round.
This may or may not be relevant, or something you already know, I just post this in case you hadn't realised it was sometimes required.
fredN4
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Location: 30200 France

Re: Jtek Shiftmate 1 help needed

Post by fredN4 »

thanks both. changes OK when I remove the jtek. it says enter via the small pulley. might give it a go the other way round.
gxaustin
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Re: Jtek Shiftmate 1 help needed

Post by gxaustin »

I'm interested to know why you don't use a 10 speed cassette? Is there some incompatibility that a nine speed overcomes?
drossall
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Re: Jtek Shiftmate 1 help needed

Post by drossall »

If you reverse the pulley, you'll reverse the effect of the ShiftMate. It's designed to alter the pull of the shifters of course. The way round that you have the pulley will determine which of the two. It's hard to see how it could help, assuming that you had it correct in the first place.

I have ShiftMates on three machines at the last count. I have had to set one or two of them up a couple of times. I think you're right to focus on cable length and how it makes the ShiftMate sit against the derailleur. The instructions are fairly precise also about how to set the pulley in terms of where the flat lies and so on.
mattsccm
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Re: Jtek Shiftmate 1 help needed

Post by mattsccm »

Sorry to mention granny and eggs but you have got the Ergo set to the very smallest sporcket haven't you? The cable needs a tug as you press the little ear and it can sort of stick about half way down. It is quite possible to just click as far as you can and think that it's there but without that tension it doesn't always work like that.
fredN4
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Joined: 14 Oct 2012, 8:21pm
Location: 30200 France

Re: Jtek Shiftmate 1 help needed

Post by fredN4 »

mattsccm wrote: 31 Jul 2021, 7:19pm Sorry to mention granny and eggs but you have got the Ergo set to the very smallest sporcket haven't you? The cable needs a tug as you press the little ear and it can sort of stick about half way down. It is quite possible to just click as far as you can and think that it's there but without that tension it doesn't always work like that.
will double check. but all works fine when I ditch the shiftmate
De Sisti
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Re: Jtek Shiftmate 1 help needed

Post by De Sisti »

fredN4 wrote: 31 Jul 2021, 7:53pm ..but all works fine when I ditch the shiftmate
Carry on. :D
De Sisti
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Joined: 17 Jun 2007, 6:03pm

Re: Jtek Shiftmate 1 help needed

Post by De Sisti »

gxaustin wrote: 31 Jul 2021, 5:28pm I'm interested to know why you don't use a 10 speed cassette? Is there some incompatibility that a nine speed overcomes?
Someone explain.
PH
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Re: Jtek Shiftmate 1 help needed

Post by PH »

De Sisti wrote: 31 Jul 2021, 9:00pm
gxaustin wrote: 31 Jul 2021, 5:28pm I'm interested to know why you don't use a 10 speed cassette? Is there some incompatibility that a nine speed overcomes?
Someone explain.
What's to explain? Campag levers, Shimano cassette, whatever the speed there's an incompatibility.
Enough to make a difference? I don't know, I understand some people get away with it, but it'll never be perfect.
drossall
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Re: Jtek Shiftmate 1 help needed

Post by drossall »

gxaustin wrote: 31 Jul 2021, 5:28pmI'm interested to know why you don't use a 10 speed cassette? Is there some incompatibility that a nine speed overcomes?
Why bother? If you're mixing and matching anyway, there's no special benefit in using 10. And 9-speed is likely to last a little longer because the sprockets aren't quite so thin. And 9-speed cassettes are probably cheaper. So why spend extra?
De Sisti
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Re: Jtek Shiftmate 1 help needed

Post by De Sisti »

PH wrote: 31 Jul 2021, 9:44pm
De Sisti wrote: 31 Jul 2021, 9:00pm
gxaustin wrote: 31 Jul 2021, 5:28pm I'm interested to know why you don't use a 10 speed cassette? Is there some incompatibility that a nine speed overcomes?
Someone explain to him.
What's to explain? Campag levers, Shimano cassette, whatever the speed there's an incompatibility.
Enough to make a difference? I don't know, I understand some people get away with it, but it'll never be perfect.
In this case (Campag 10s levers, Campag 9 or 10 front and rear derailleur, Shimano 9s cassette) it does work perfectly. I've been using that combination for over 20 years (and this subject has been discussed at length on this and other forums).
fredN4
Posts: 103
Joined: 14 Oct 2012, 8:21pm
Location: 30200 France

Re: Jtek Shiftmate 1 help needed

Post by fredN4 »

De Sisti wrote: 1 Aug 2021, 6:17am
PH wrote: 31 Jul 2021, 9:44pm
De Sisti wrote: 31 Jul 2021, 9:00pm
Someone explain to him.
What's to explain? Campag levers, Shimano cassette, whatever the speed there's an incompatibility.
Enough to make a difference? I don't know, I understand some people get away with it, but it'll never be perfect.
In this case (Campag 10s levers, Campag 9 or 10 front and rear derailleur, Shimano 9s cassette) it does work perfectly. I've been using that combination for over 20 years (and this subject has been discussed at length on this and other forums).
Thought I would give the jtek a go as I have quite a few bikes. Hoping to have them all ready for the family assault of Le Ventoux.
drossall
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Re: Jtek Shiftmate 1 help needed

Post by drossall »

De Sisti wrote: 1 Aug 2021, 6:17amIn this case (Campag 10s levers, Campag 9 or 10 front and rear derailleur, Shimano 9s cassette) it does work perfectly. I've been using that combination for over 20 years (and this subject has been discussed at length on this and other forums).
Not tried it, but you'd need to be careful because, part-way through its life, Campagnolo changed the cable pull for 9-speed, so you need to know which one you're talking about. I think Ergos on eBay tend to be new-9, and quite a few derailleurs are old-9. I'm using one of my ShiftMates to convert between those two.
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