[thecanoe]

I happen to have a new 24/32/bash XTR 9 sp chainring set.
Will they work on my 10sp XT Tallboy

 

[g3rG]

Yes.

Since last November I have been using a Shimano 10-sp front shifter with a Sram 9-sp RD, a Shimano 10-sp cassette, and a Sram 10-sp chain. It works because the full pull of the new Shimano 10-sp stuff is exactly the same as the full pull of the old Sram 9-sp stuff. The Shimano incompatibility engineers must have screwed up.

Shifting has been perfect, even when I screw up and shift under load. I do a lot of steep climbing, so the system has had some abuse. Since the install I haven't even had to adjust it.

gerG

"2. Nine speed rear derailleurs will not work with 10 speed mountain rear shifters. They will however work with road "flat bar" 10 speed rear shifters. Dyna speed shifters pull twice as much cable per shift as 9 speed shifters, so if you use a 9 speed derailleur it shifts two gears for every one push."

"This confirms what I read only once before. The Dyna-sys cable pull to rear derailleur rate is 1:1, like SRAM (9 Speed) now. I haven't heard if SRAM changed from 1:1 to something else for XX."

"I believe the SRAM 10 speed works out as a 0.8:1 ratio now, their 8/9 speed stuff is 1:1, all shimano derailleurs except the new 10speed mtb (and the 7/8 speed DuraAce) are 2:1 and the shimano 10s MTB is I believe its been measured out as something like 1.25:1."

Folks, sorry if i lost something in translation (english is not my native language).. Is it possible to use a 9 sp SRAM rear der in a full 10 sp DynaSys system(i.e. changing a XT RD-M773 for a X9)?
Thanks.

 

[thecanoe]

So 9sp XTR chainrings will fit a 2011 XT crank.
That's great news.

 

[betteron2wheels]

Chain question

Great thread! I'm pulling the trigger on a budget conversion, 9sp front with 10sp rear. I have an ultegra 6701 chain and need to know of it will work before I order parts. The configuration will be 970 (XTR 9 sp) crank and fr derailleur, 980 shifters, 771 cassette and 773 rear derailleur and chain TBD. It seems the mountain 10sp chains are "optimized" but that's the same thing Shimano says about their road chains which I have no problems mixing with SRAM road cranks and cassettes. Thanks!

 

[murrdogg11]

i've read through this forum, but it doesnt seem like my question has been asked/answered. if it has, pardon my lack of comprehension.
i have 9spd every thing...rear cassette, chain, front and rear derailer..id like to get a new crankset...
if i get the dyna sys 10spd cranks will they work well with my old components?
the point of this is so i can go 10spd down the road when its necessary.
im planning on running it as a 2x9 for now, 2x10 down the road.

 

[KPH]

if i get the dyna sys 10spd cranks will they work well with my old components?
the point of this is so i can go 10spd down the road when its necessary.
im planning on running it as a 2x9 for now, 2x10 down the road.

I recently fitted an XTR crankset (3 chainrings, for 10 spd system), replacing an old set of XT (3 chainrings, for 9spd system).

I had to change the front mech to XTR 10spd and also the chain to a 10spd chain.

My current set up that works very well is:

Front shifter - 9-spd (sic) XTR 2008
Front Mech - 10 spd (sic) XTR 2011 - 3 chainring
Cranks/chainring - 10spd 3 chainring XTR 2011
Rear Shifter - 9 spd XTR 2008
Rear mech - 9 spd XTR 2008
Chain - 10 spd XTR 2011

Not buying in to all the marketing BS, but I did notice a significant different (for the the better) over the old XT in gear changes to a larger chain ring.

 

[with_the_band]

Hi murrdogg11, I bought a 10 speed xt crankset and put my old 9 speed rings back on to it.

Works great. I plan on upgrading to 10 speed eventually.

 

[murrdogg11]

I recently fitted an XTR crankset (3 chainrings, for 10 spd system), replacing an old set of XT (3 chainrings, for 9spd system).

I had to change the front mech to XTR 10spd and also the chain to a 10spd chain.

My current set up that works very well is:

Front shifter - 9-spd (sic) XTR 2008
Front Mech - 10 spd (sic) XTR 2011 - 3 chainring
Cranks/chainring - 10spd 3 chainring XTR 2011
Rear Shifter - 9 spd XTR 2008
Rear mech - 9 spd XTR 2008
Chain - 10 spd XTR 2011

Not buying in to all the marketing BS, but I did notice a significant different (for the the better) over the old XT in gear changes to a larger chain ring.

ok thanks for that....so basically i need a new chain and front derailer?

 

[murrdogg11]

Hi murrdogg11, I bought a 10 speed xt crankset and put my old 9 speed rings back on to it.

Works great. I plan on upgrading to 10 speed eventually.

thanks for the advice, however my current rings have no life left in them.

 

[KPH]

ok thanks for that....so basically i need a new chain and front derailer?

Yep, that's what I'd recommend

FYI, I paid US$43 for the XTR 10 spd chain and US$ 73 for the [conventional] front derailer

 

[frenk]

Yep, that's what I'd recommend

FYI, I paid US$43 for the XTR 10 spd chain and US$ 73 for the [conventional] front derailer

Interesting, I may do the same. Did you try with the 9s FD and changed because it wasn't working well or did you go straight to the 10s FD?

Also, is it possible to put a 22t XTR m970 granny on the m980 trail triple instead of the OEM 24t?

 

[murrdogg11]

Anyone have 10spd chain reccomendations? On some of the reviews I've read people are complaining about breaking shimano 10spd chains.

 

[rkj__]

This thread has been helpful to me. I learned a few things. It would be nice if manufacturers made it a little easier to figure out this kind of information.

 

[work-ed]

So I can purchase the SL-M770-10R rear shifter (non flat bar version) and it will be compatible with my 10 Speed Ultegra der?

 

[kuolas]

So I can purchase the SL-M770-10R rear shifter (non flat bar version) and it will be compatible with my 10 Speed Ultegra der?

In theory... no. But, you could use Mega9 and your Ultegra, and it should work.

See this...
http://waltworks.blogspot.com/2011/04/teds-new-fork-artistic.html

 

[work-ed]

Why would a 9sp rear shifter be my answer to a 10sp rear der and 10sp cassette? What about these?

http://www.jensonusa.com/store/product/SL407A08-Shimano++Sl-R770+10+Sp+Flat+Bar+Shifter.aspx

 

[kuolas]

Sorry... 9s only.

You could use Tiagra 10s Flat Bar Shifters (new Tiagra is 10s) or a 10s Dyna-Sys Shadow rear mech. and shifters (why is no Shadow on the road groups?)

http://www.bikeradar.com/beginners/news/health/article/2011-shimano-tiagra-and-acera-first-look-29452/

 

[J. Random Psycho]

why is no Shadow on the road groups?

Ha-ha, this could be marketed as aerodynamic improvement!
Maybe the roadies are too attached to the timeless aesthetics of the cable loop?

 

[Harry Zimmermann]

So I can purchase the SL-M770-10R rear shifter (non flat bar version) and it will be compatible with my 10 Speed Ultegra der?

Dyna-Sys is the key. Finally, a buzz word that is actually useful!

Ten speed Dyna-Sys rear derailers and ten speed Dyna-Sys rear shifters are only compatible with one another. Neither will work with any other type of Shimano component.

 

[eastongeneral]

I had been running a dyna sys 10 spd chain with my mixed 10 spd set up (SRAM shifters and derailuers Shimano dynasys chain, crank and cassette) and it shifted like crap. It was to a point where I thought I had installed the chain backwards. Also very loud. Then I went to a bigger chainring combo and needed more chain. I had a KMC XSL10 spd chain lying around and threw it on. Shifted like a dream immediately. Night and day. Not sure if the issue was with the SRAM derailuer mixed with Shimano chain or Dynasys is no good. Seemed to me that the cassette/chain match would be more important but maybe the pulleys on the SRAM with the shimano chain was the problem. Regardless, KMC chains work well with both sram and shimano 10spd parts