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PostPosted: Sat May 06, 2017 4:14 pm 
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Joined: Thu Dec 09, 2004 5:51 pm
Posts: 190
Semi new to mountain biking after riding road for 35 years. After borrowing from friend his mountain bike for several years just purchased Scott Scale 710. It comes with XT 2 x11 with 11- 40 rear cassette. Thinking of switching to 1 x 11 with 10 x 42 cassette. To make the change do I just need a new 1x11 crankset using same BB ? Can I just swap the cassette to a 10 x 42 or will I need an adaptor XO drive ????


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PostPosted: Sat May 06, 2017 6:25 pm 
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Joined: Thu Mar 08, 2012 11:43 pm
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Easiest solution would be swap the rear cassette to an XT 11-46. A 10-42 (or 10-whatever) cassette would need a new freehub, like a SRAM XD or OneUp Minidriver.


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Posted: Sat May 06, 2017 6:25 pm 


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PostPosted: Sun May 07, 2017 1:23 am 
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Joined: Mon Sep 07, 2015 1:02 am
Posts: 253
Location: Brisbane
if its got an 11-40 on the back leave it and just buy a narrowwide chainring to suit the crank. 32 or 34t

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PostPosted: Sun May 07, 2017 4:13 am 
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Joined: Mon Jul 26, 2004 1:06 pm
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As said. Keep it simple. Just buy a narrow-wide ring for your crankset. Just match the bolt pattern.

To start just use the 11-40 cassette. If you find you need more low end climbing get the XT 11-46.

11-46 and 10-42 is practically the same spread of gears. Tailor what rollout you want that spread to cover with ring size.

Most people use 32 ring with 10-42 cassette. With 11-46 cassette a 34 ring is slightly easier gearing, a 36 ring is slightly harder gearing.


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PostPosted: Sun May 07, 2017 8:55 pm 
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Joined: Mon Apr 27, 2015 8:59 pm
Posts: 38
silvalis wrote:
if its got an 11-40 on the back leave it and just buy a narrowwide chainring to suit the crank. 32 or 34t


+1


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PostPosted: Sun Jun 18, 2017 3:50 am 
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Joined: Tue Mar 31, 2015 11:05 pm
Posts: 68
I think that bike has a XT 8000 crank and an XT 8000 cassette, My advice would be to buy a OneUP single chainring, and if you want a wider range than the 11-40, you can change that to an 11-45.
https://int.oneupcomponents.com/collections/chainrings-1/products/xt-m8000-chainrings
https://int.oneupcomponents.com/collections/sprockets/products/45t-sprocket-18t


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PostPosted: Sun Jun 18, 2017 6:47 am 
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Joined: Wed Dec 19, 2007 10:54 am
Posts: 227
Location: South Africa
Agree with the above advice to just change the chainring for starters. Make sure to ride with the clutch engaged.


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PostPosted: Sun Jun 18, 2017 7:14 am 
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Location: Midlands, United Kingdom
Never found you need the clutch with a narrow wide, not used one 3 1/2 years of just using an NW.

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PostPosted: Sun Jun 18, 2017 8:08 am 
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Location: South Africa
:noidea: Ive got XTR 1x11 with a 36 CarbonTi narrow wide direct mount ring, it drops all the time without the clutch.

But the OP can find what works for him :beerchug:


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PostPosted: Sun Jun 18, 2017 12:17 pm 
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Joined: Wed Oct 29, 2008 7:55 pm
Posts: 361
In OP's case I would stick with Shimano. Just get XT nw chainring and 11-46 cassette. Probably the cheapest and best option.


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PostPosted: Sun Jun 18, 2017 1:07 pm 
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Joined: Fri Jan 05, 2007 5:33 pm
Posts: 397
Location: Stockholm, Sweden
Dilbert wrote:
:noidea: Ive got XTR 1x11 with a 36 CarbonTi narrow wide direct mount ring, it drops all the time without the clutch.

But the OP can find what works for him :beerchug:

Have you checked if your CarbonTi chainring has the full narrow/wide pattern on the inside of the chainring? You can read about my issues with one of their rings here:

viewtopic.php?f=1&t=136258


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Posted: Sun Jun 18, 2017 1:07 pm 


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PostPosted: Sun Jun 18, 2017 1:59 pm 
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Location: South Africa
Tanks CGT, will comment on your thread :thumbup:


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