[siv]

Are KMC 10 speed road chains compatible with Dyna Sys? They(KMC) say yes but i dont know if they're just trying to sell a product, expensive one at that.

 

[Straz85]

Okay, I've read through the thread and think I know the answer, but I want 100% confirmation...

My current setup is 2x9, XT RD, SLX shifters, Deore cranks/chainrings. I just had the LBS order XT Dyna Sys RD, shifter, cassette and chain and will be going to 1x9. Will I need a new chainring, or can I keep my current Deore one since I will be 1x9? Thanks!

 

[siv]

IMO, yes you will need new rings. Would seem cheaper to buy a new crank and sell the old one cause rings are not cheap assuming you can find them. Also, appears that only the stock combo(24,32,42) is available. Im still looking for conformation on KMC chain compatibility, seems like the only thing you can mix in that isnt Shimano. Measured the inner and outer width of the chain links last night and compared to the KMC chain on my road bike, damn close. Like .001's close, should work.

 

[Straz85]

IMO, yes you will need new rings. Would seem cheaper to buy a new crank and sell the old one cause rings are not cheap assuming you can find them. Also, appears that only the stock combo(24,32,42) is available. Im still looking for conformation on KMC chain compatibility, seems like the only thing you can mix in that isnt Shimano. Measured the inner and outer width of the chain links last night and compared to the KMC chain on my road bike, damn close. Like .001's close, should work.

Ugh, not what I wanted to hear, that's another $200+ that I didn't plan on spending. What is it about the chain rings that makes the 10 speed ones different exactly? Shape of the teeth? I think if I end up having to order that, I'll be going with X.9 instead. Is XT Dyna Sys that much better than X.9, if at all? Thanks.

 

[shiggy]

Ugh, not what I wanted to hear, that's another $200+ that I didn't plan on spending. What is it about the chain rings that makes the 10 speed ones different exactly? Shape of the teeth? I think if I end up having to order that, I'll be going with X.9 instead. Is XT Dyna Sys that much better than X.9, if at all? Thanks.

siv is wrong. Many people have been using 10-speed chains on 9-speed chains for years.

 

[siv]

siv is wrong. Many people have been using 10-speed chains on 9-speed chains for years.

Wrong about what? If everything else is specific why not the rings?

 

[shiggy]

Wrong about what? If everything else is specific why not the rings?

Read my reply again.

 

[siv]

Got it. Actually just read it again, I dont get it. Please explain so I dont have to speculate and be wrong telling others about Dyna Sys. Thanks.

 

[havenzhiv]

I am trying the following setup:
9 speed gravity light 32-22 or 32-24 (provided that blackspire 24t inner ring can fit)
XT 10 spd shifters
XT 10 spd fd
XT 10 spd rd
XT 10 spd cassette
XT 10 spd dyna sys chain

any thoughts on this? will it work?

 

[ljsmith]

Got it. Actually just read it again, I dont get it. Please explain so I dont have to speculate and be wrong telling others about Dyna Sys. Thanks.

You can use a 9 speed crankset and rings with a 10 speed chain. Weight weenies have already been doing this for years. I have heard that you need to use a 9 speed front derailleur though, but I have not confirmed this. My 10 speed setup is using the 9 speed XTR 970 crankset and it works flawlessly.

 

[ljsmith]

I am trying the following setup:
9 speed gravity light 32-22 or 32-24 (provided that blackspire 24t inner ring can fit)
XT 10 spd shifters
XT 10 spd fd
XT 10 spd rd
XT 10 spd cassette
XT 10 spd dyna sys chain

any thoughts on this? will it work?

It should work fine. However I have heard that a 10 speed front derailleur does not work optimally with a 9 speed crankset, I have not confirmed this though. I personally am using a 9 speed front derailleur and crankset with my system and it works great!

 

[siv]

You can use a 9 speed crankset and rings with a 10 speed chain. Weight weenies have already been doing this for years. I have heard that you need to use a 9 speed front derailleur though, but I have not confirmed this. My 10 speed setup is using the 9 speed XTR 970 crankset and it works flawlessly.

So as long as you have a 10 speed chain you can run 9 speed up front and 10 in the rear? I guess theres no reason why it wouldnt work. Good news for people with old stuff then! So there is a way for me to go 24/36 up front, I just have to go back to 9 speed front shifter and d-rail and "normal" rings.

 

[ljsmith]

So as long as you have a 10 speed chain you can run 9 speed up front and 10 in the rear? I guess theres no reason why it wouldnt work. Good news for people with old stuff then! So there is a way for me to go 24/36 up front, I just have to go back to 9 speed front shifter and d-rail and "normal" rings.

You are correct. A 10 speed chain works great with a 9 speed crank and front derailleur. I actually like the 10 speed chain with a 9 speed front derailleur because it is easier to set it up so it never rubs due to the slightly wider cage.

 

[cstuttle]

SRAM Powerlink

Anyone tried a SRAM Powelink with an XT 10 spd dyna sys chain?

 

[Straz85]

You can use a 9 speed crankset and rings with a 10 speed chain. Weight weenies have already been doing this for years. I have heard that you need to use a 9 speed front derailleur though, but I have not confirmed this. My 10 speed setup is using the 9 speed XTR 970 crankset and it works flawlessly.

I checked with the LBS that I bought all the parts at, who happens to also be a Shimano Service Center and just went to a Shimano training and he said 9 speed chainrings with a 10 speed chain in fine.

Anyone tried a SRAM Powelink with an XT 10 spd dyna sys chain?

I asked him about this as well, he said not to do it.

 

[Dictatorsaurus]

Will the following work together?

- 10-speed Shimano XT crankset

- 9-Speed SRAM cassette
- 9-Speed SRAM Chain
- 9-Speed SRAM X9 Shifter
- 9-Speed SRAM Derailleur

 

[shiggy]

Will the following work together?

- 10-speed Shimano XT crankset

- 9-Speed SRAM cassette
- 9-Speed SRAM Chain
- 9-Speed SRAM X9 Shifter
- 9-Speed SRAM Derailleur

The crank set does not really care what is happening at the rear.

 

[shiggy]

In a consersation with Paul Thomasberg (Shimano R&D rider/thinker) earlier this week I asked if the Dyna Sys cassette uses the same cog spacing (c-c) as the road 10-speed cassettes.

Yes, it is, but the cogs are thicker, which is one of the reasons for the different chain design. When I followed up asking if mixing road and mtb 10-speed chains and cassettes would work as a "B" or "C" compatibility (functions but not as designed or as well), Paul nodded as the Japanese engineer waved "NO! Will not work!"

So, you can probably do it, but do not expect the same performance.

 

[Dictatorsaurus]

The crank set does not really care what is happening at the rear.

A better way to phrase it would be would a 10speed xt crank work with a 9 speed chain and 9 speed FD?

 

[shiggy]

A better way to phrase it would be would a 10speed xt crank work with a 9 speed chain and 9 speed FD?

I believe that has been at least partly addressed in several previous posts to this thread. i.e. Maybe.