SRAM 10 and 11 speed and free hub specs.

[awesme]

Ok, so the wife currently have a 2 x 10 seed SRAM setup, X9 RD and X7 FD.

I'm wanting to upgrade her a bit.. her bike guys....

 

Was thinking of going 1 x 11 via a SRAM XO setup.

 

Can the 11 speed cassette fit onto the current 10speed Freehub body as it is with Shimano, 10 and 11 speed uses the same width cassette, 

 

I really don't want to rebuild the wheel or change the hub also.

 

G

[PeterF]

Hi G

 

You could use the SRAM shifter and rear derailleur with a Shimano 11-42 cassette or you could use the new SRAM NX cassette which is also available in 11-42.  If you want the 10-42 gearing then you will need to replace your freehub with an XD driver.

[awesme]

So basically fit a Shimano 11 speed 11-42 cassette,

 

and then use the SRAM XO 11 speed RD, but does this RD not expect a wider cassette,

 

Think the big question is, is the 10 speed and 11 speed cassette's from SRAM the same width, if yes, do they fit onto the same Freehub body,

 

G

 

 

Hi G

 

You could use the SRAM shifter and rear derailleur with a Shimano 11-42 cassette or you could use the new SRAM NX cassette which is also available in 11-42.  If you want the 10-42 gearing then you will need to replace your freehub with an XD driver.

[awesme]

ok, whats the XD driver ?

 

I know Shimano... SRAM, thats my wife bike,

 

G

 

Hi G

 

You could use the SRAM shifter and rear derailleur with a Shimano 11-42 cassette or you could use the new SRAM NX cassette which is also available in 11-42.  If you want the 10-42 gearing then you will need to replace your freehub with an XD driver.

[Glenmx]

I'm sure the widths are the same. It's the internal radius that's different to get the 10 gear to fit.

[PeterF]

ok, whats the XD driver ?

 

I know Shimano... SRAM, thats my wife bike,

 

G

The cassette width is the same but because of the diametre of the 10t cog you need the special freehub.

 

[Captain Fastbastard Mayhem]

So basically fit a Shimano 11 speed 11-42 cassette,

 

and then use the SRAM XO 11 speed RD, but does this RD not expect a wider cassette,

 

Think the big question is, is the 10 speed and 11 speed cassette's from SRAM the same width, if yes, do they fit onto the same Freehub body,

 

G

Yes, same width. I'm running an XT 11sp cassette on my gx setup.

 

The ONLY difference is when you get to the 11speed / 12 speed cassette with the 10t cog. The 10t cog is too small to fit on a "normal" free hub which is why SRAM developed the xd driver.

 

Spacing remains consistent across brands as long as you're comparing the same cog count. This is true from 7 all the way to 12 speed.

 

In short. No issues running an XT cassette with XX goodies. Saves you from having to change the freehub

[awesme]

Light bulb

 

forgot about that 10 tooth 

 

ok so simplest is to leave her then as a 11-42, skipping that 10-... avoids having to get this XD driver/Freehub...

 

Ok. now I understand.

 

thanks.

 

G

[Captain Fastbastard Mayhem]

Oh and the 11sp XT cassette fits the same free hub as a 10sp. Exactly the same width at the free hub interface. They are able to do this by mounting the large cogs on the 3rd cog instead of making it a full size cog, thereby dishing the 42t closer to the spokes.

[Captain Fastbastard Mayhem]

Light bulb

 

forgot about that 10 tooth

 

ok so simplest is to leave her then as a 11-42, skipping that 10-... avoids having to get this XD driver/Freehub...

 

Ok. now I understand.

 

thanks.

 

G

Exactly. Should have had your coffee before posting

[awesme]

Curious

 

is this XD driver universal? Wondering if it ill fit into her current hub.

 

G

 

The cassette width is the same but because of the diametre of the 10t cog you need the special freehub.

 

xx1_driver_body_12mm.png

[Captain Fastbastard Mayhem]

Curious

 

is this XD driver universal? Wondering if it ill fit into her current hub.

 

G

No. Different manufacturers have to make their own due to their different ratchet & pawl designs.

[awesme]

cup 2 brewing...

 

G

 

Exactly. Should have had your coffee before posting

[Captain Fastbastard Mayhem]

And even then they won't be compatible with all that particular manufacturers hubs, as some manufacturers have multiple hub, ratchet and pawl designs

[V12man]

Ok, so the wife currently have a 2 x 10 seed SRAM setup, X9 RD and X7 FD.

I'm wanting to upgrade her a bit.. her bike guys....

 

Was thinking of going 1 x 11 via a SRAM XO setup.

 

Can the 11 speed cassette fit onto the current 10speed Freehub body as it is with Shimano, 10 and 11 speed uses the same width cassette, 

 

I really don't want to rebuild the wheel or change the hub also.

 

G

The SRAM NX (42/11) cassette fits on a 10 speed freehub - as do the shimano 11 speed cassettes (42/11 or 40/11)

 

But for a woman (unless she is strong) - I think you should consider a 2 x 11 setup (SRAM GX rear der and you can keep the existing front deralleur most likely - she will like the additional range available, rather than the 1 x 11 which removes a fair amount of gearing range, especially with a 42/11 cassette.

[Fisan]

The SRAM NX (42/11) cassette fits on a 10 speed freehub - as do the shimano 11 speed cassettes (42/11 or 40/11)

 

But for a woman (unless she is strong) - I think you should consider a 2 x 11 setup (SRAM GX rear der and you can keep the existing front deralleur most likely - she will like the additional range available, rather than the 1 x 11 which removes a fair amount of gearing range, especially with a 42/11 cassette.

 

But why get a NX Cassette when you can get an XT cassette? The NX Cassette is a clunker in terms of weight and costs just wee bit less than XT. Even the SLX is cheaper and lighter. This is just considering the Weight-to-Randella ratio.