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PostPosted: Thu Aug 23, 2012 2:38 pm 
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Location: Hampshire UK
I find the gaps in the 10 speed xtr cassette too wide so can I use a road cassette?

I always did this with my 9 speed stuff but i know the pull ratios changed for 10 speed.

id ideally like a XO rear mech with Xo grip shift and dura ace cassette or similar Red Cassette.
i have XTR 9 speed mech shifters / XO 9 speed mech and shifters and XTR 10 speed mech and shifters.
out of this lot can i get a system that would work ?


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PostPosted: Thu Aug 23, 2012 3:13 pm 
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Pull ratios have nothing to do with road vs MTB cassettes. It has to do with road vs. MTB shifters/derailleurs.

If the spacing is the same, you should be able to use a Dura Ace cassette. I think it's the same, but I'm not 100% sure, never tried it myself.

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Posted: Thu Aug 23, 2012 3:13 pm 


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PostPosted: Thu Aug 23, 2012 3:29 pm 
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I used an 10speed DA cassette with SRAM X0 grip shits no problem at all


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PostPosted: Thu Aug 23, 2012 3:52 pm 
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Grip what's :shock: :lol:

Is that the 10 speed XO grip not a converted 9 speed?


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PostPosted: Thu Aug 23, 2012 6:36 pm 
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http://www.sram.com/sram/mountain/family/grip-shift

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PostPosted: Fri Aug 24, 2012 10:04 am 
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Location: Hampshire UK
LEC135 wrote:
I used an 10speed DA cassette with SRAM X0 grip shits no problem at all


what rear mech do you use? what size cage ?


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PostPosted: Sat Aug 25, 2012 4:22 am 
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All 10 speed Shimano/SRAM cassettes have the same spacing so the only compatibility issues are generally people trying to run too large a cassette with a road RD (no clearance for the large cogs). You shouldn't have any issues the other way around and many DH race bikes actually run road cassettes. They have no need for climbing gears and the smaller spread lets then run a shorter chain/RD which helps with chain retention and to stop bashing the RD.


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PostPosted: Sun Aug 26, 2012 5:20 am 
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A road cassette will shift like crap when using a 10sp mtb rear derailleur. The top pulley wheel sits way too far from the gear cluster. You'll have to rig something up custom if you want to use a 10sp road cassette on a mtb and have it shift well.

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PostPosted: Sun Aug 26, 2012 6:38 am 
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Not exactly true Benno... You need to unthread your b tension screw to bring the derailleur pulleys closer to the cassette.

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PostPosted: Mon Aug 27, 2012 5:16 am 
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One should be able to use a 10sp road rear der with it.

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PostPosted: Thu Aug 30, 2012 8:04 am 
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But not with 10speed MTB shifters as the pull ratio changed, if you want to run a road RD you need road (flatbar) shifters,

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PostPosted: Sun Sep 02, 2012 9:46 pm 
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Location: Glermsford, Suffolk U.K
Shimano do an MTB rear mech for 10 speed shifter designed to work with road cassettes like with a 28T big sprocket. I think its called the T-780. I maybe wrong with the model number but it exists it says so in the Shimano bible.

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Posted: Sun Sep 02, 2012 9:46 pm 


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