9speed cassette wit...
 

[Closed] 9speed cassette with 9 speed shifters how to?

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Okay, i know Jtek used to make little ratio pullys, however due to health issues he has now shut down.

I want to use Sram TT 10speed bar end shifters and an X.0 deralliur, however iv only just bought a 9 speed TI cassette and chain. i really cant affored another £xxx on another chain and cassette.

I belive on shimanos there is a way to reroute the cable to allow different ratios

Are there any other methods or anything similar to shimanos?

Thanks

Craig


 
Posted : 25/11/2009 3:28 pm
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Not quite sure what you are asking, but if you have SRAM shifters and an X0 mech, they will work together. Cassette & chain make isn't important......


 
Posted : 25/11/2009 3:30 pm
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are the sram TT shifters 10 speed?


 
Posted : 25/11/2009 3:31 pm
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take it the TT shifters are 10 speed

you could experiment with the cable clamp but i suspect tha you'll never get truly slick shifting

the shimano workaround is a fluke of chance really


 
Posted : 25/11/2009 3:32 pm
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Hi yeah, maybe i should have explained myself better.

The TTshifter are 10speed, and the cassette is 9 speed.

I wasnt sure if there any other companys making ratio changing pullys out there?

Thanks

Craig


 
Posted : 25/11/2009 3:34 pm
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Have a look at this:

[url] http://www.ctc.org.uk/desktopdefault.aspx?tabid=3946 [/url]

Bugger, just noticed that it doesn't have SRAM 10 speed on there.

Anyway, as above, chances are that 10 speed SRAM shifters won't work with 9 speed SRAM cassette and mechs.


 
Posted : 25/11/2009 3:40 pm
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Thanks Clubber, Yeah it seems more difficult with Sram.

:/

Craig


 
Posted : 25/11/2009 3:50 pm
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I assume the SRAM shifters can't be switched to friction rather than index?


 
Posted : 25/11/2009 3:58 pm
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They are the new style R2C ones 🙂

So unfortunatly not.


 
Posted : 25/11/2009 4:01 pm
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Why on earth are you using TT shifters on an MTB?

Or... why are you using an MTB mech on a TT bike?

It won't work properly. Simple.


 
Posted : 25/11/2009 4:03 pm
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Reason: i need to mount my shifter on the frame, im going to machine a plate to mount it to the bottole mount.

TT bar ends are perfect for mounting like this. i can machine a plate with a 45 degree block to mount to.

Im using a gyro up front you see and dont wanna go single speed.

Craig


 
Posted : 25/11/2009 4:08 pm
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For all that hassle, I reckon it'd be easier just to get an old handlebar, cut of a section approx 15cm long, flatten/crush the tube at one end, bend that approx 90 degrees, drill a hole in the flattened bit and then bolt it onto the bottle cage mount. Then fit a normal shifter to the handlebar stump. Job done and not having to bodge a system with a very espensive shifter.


 
Posted : 25/11/2009 4:12 pm
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This is on your Kona which, for some totally unbeknown reason, wasn't liked on Pink Bike?

Edit: as an aside... why are you running a Gyro on an MTB, and how do you have brakes?

If you must use TT shifters, just get some Shimano friction jobbies.


 
Posted : 25/11/2009 4:36 pm
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Everythign about this Kona sounds awe-inspiring. Just imagine: a Kona with TT shifters attached to the bottle bosses and a gyro! How could it be anything but ACE? 8)


 
Posted : 25/11/2009 4:49 pm
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Well by all accounts, the mtb with gyro and shifter attached to the bottle cage bosses is the latest done thing in DJ - seriously!

[img] [/img]


 
Posted : 25/11/2009 4:57 pm
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Is this not a Kona Dawg though, hardly a jump bike. I'm certainly intrigued...


 
Posted : 25/11/2009 4:58 pm
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came up a bit short on the skirting board there...


 
Posted : 25/11/2009 4:59 pm
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And it starts.

Well its a DJ/Street, thats what im building it up as.

Using Hydro Gyro will allow me to do bar spins.

Its a Kona Chute


 
Posted : 25/11/2009 5:07 pm
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Well you were warned... Lets see a photo then!


 
Posted : 25/11/2009 5:08 pm
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Here's an example of the frame mounted shifter

[url] http://www.pinkbike.com/photo/2153033/ [/url]

and here (last pic)
[url] http://www.pinkbike.com/news/Jack-Fogelquist-banshee-2009.html [/url]


 
Posted : 25/11/2009 5:11 pm
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Am I missing something? Is 10speed XX not the same ratio lever pull as 9spd XO? So you'll just have a redundant stop if you use a 9spd XO mech?

You could avoid all this by holding the gear cable in your teeth. Bit of gaffa tape and you enamel will be fine.


 
Posted : 25/11/2009 5:11 pm
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Anotherdeadhero. Sorry i wasnt aware that a TT10speed had same pull radio as a 9speed X.0??? if thats the case. thats perfect!

However, whats the problem with me wanting to use a hydro gyro on a jump bike?


 
Posted : 25/11/2009 5:17 pm
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I don't know that it is, thats why I was asking ...

I have no problem with you using a gyro on your bike, it is your bike, you can spaff it up any which way you please.


 
Posted : 25/11/2009 5:20 pm
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That wasnt aimed at you.

I thought you was stating itwas, you got my hopes up then 🙁


 
Posted : 25/11/2009 5:23 pm
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How about just using non RTC 9spd TT shifters? Its a bodge anyway.


 
Posted : 25/11/2009 5:25 pm
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That was the 2nd plan.

What do you mean 'a bodge?'

No disrespect but i am, literally trying as hard as i can with this bike. The parts will be machined to a profesinoal standard(spelling?)

Craig


 
Posted : 25/11/2009 5:28 pm
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As far as I know, all SRAM shifters (maybe not the roadie hoods, dunno) use 1:1 ratio shifting, so you'll just have a redundant shift, but you could probably tension that out if you were really anal about it.


 
Posted : 25/11/2009 5:44 pm
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No no no no no... SRAM 10 speed cassettes are the same width as their 9 speed ones, with an extra cog, so every time you shift on a 9 speed set up, you'll be undershifting by 10% or so.

Why don't you just fit a cheap 10 speed road block to the bike? If it's a jump bike you're hardly going to be honking up hills presumably?


 
Posted : 25/11/2009 5:46 pm
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What do you mean 'a bodge?'

Ok, so it'll be a good bodge, but you're still doing something with a piece of equipment that wasn't the original intension behind the product.

Stop being so touchy.


 
Posted : 25/11/2009 5:46 pm
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use 1:1 ratio shifting

That may be true, but the actual [u]amount[/u] of cable pull here is important, not the ratio.

Looks like a 9spd non RTC shifter then.


 
Posted : 25/11/2009 5:48 pm
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I think the way forward here is goign to be non R2C friction shifter.

They dont make 9speed TT's.

I appreciate the help, i think thats the only way forward here.

Other than spending weeks in making a ratio pully...which i dont fancy.

Craig


 
Posted : 25/11/2009 5:55 pm
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Or you could swap/buy the 9spd stuff you bought in error for some 10spd stuff.


 
Posted : 25/11/2009 5:57 pm
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It looks like what my old man would have called "heath robinson"


 
Posted : 25/11/2009 5:57 pm
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Unfortunatly my 9speed stuff is used so i cant take it back.

Reguardign the Heath Robinson comment: 😆 - true...but i cant help myself

Craig


 
Posted : 25/11/2009 6:04 pm
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Should be easy to sell on nearly new 9sp cassette & chain, the RTC shifter sounds like a neat way of doing it to me and would certainly be different to what most people have...


 
Posted : 25/11/2009 6:56 pm
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Aha, I see, learn something new everyday.


 
Posted : 25/11/2009 7:28 pm