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Got The Life
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Discussion Starter · #1 ·
Anyone have pics of their 2x9 or even poor man's 2x10 they are running on their 29er ? Anything other than an XX set up. Looking for some ideas. thanks
 

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The Human Arrow
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I know it's not what you wanna hear..... but the XX is really nice stuff ;-) I think perhaps the best thing about it is the XX front derailleur. Very positive and snappy to engage, which encourages using it more without fear of buggering things up. Adds great versatility to the drivetrain. Also -- the XX front chainrings are robust and ramped very good... my setup is the 39/26 front and it's darned near perfect with the 11-36 rear cluster.

FWIW, I have a new XX High Clamp top-pull front 34.9 derailleur that I ordered by mistake and am selling... in case it would work for you on your eventual build....

-Denis
 

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Premium Member
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Major Glory said:
Anyone have pics of their 2x9 or even poor man's 2x10 they are running on their 29er ? Anything other than an XX set up. Looking for some ideas. thanks
Many 2x9 setups being used. Pics basically just show there is one less chainring. But you can do 2x by removing either the inner or the outer ring. Most of my bikes are 2x (5, 8, 9) with 32/22x11-32, 36/24x12-32, and 42/30x11-34 on the 29ers. You need to match the gearing to the bike, terrain and your riding style.
 

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No longer 26
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3,090 Posts
24/36 Blackspire Pro rings.
Sram Force FD
Sram XO Med RD
Sram 990 11-34 cassette
Sram 9sp chain

36x11 is about the same as a 42x13 at the top end. I do not miss that at all. In fact I seldom get into the 36x13. I really like the extra clearance.

G
 

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Got The Life
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117 Posts
Discussion Starter · #6 ·
Nice set ups, everyone. Good to see there's variety out there.

and you're right, the XX is nice. A bit too spendy for me though.
 

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Squishy Fishy
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234 Posts
Pic your crank of choice (XTR has different spacing you need to use spacers) get some blackspire rings of your choice, (38x26 works great IMO) and use a shimano SLX double front der. These will be run in the granny and middle position. No bash needed, unless you want one and prefer to not get some new chainring bolts. Solid. One more thing, get the proper chainring bolts (singlespeed/bmx ones) You can go as cheap as you want or as bling as you want.
 

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Sorry no pics as of now but I too am using the FSA Afterburner 27/40 with a standard
11-34 cassette and SLX front derailleur. I love it but I don't think it would be appropriate if you want to do a lot of serious climbing on a 29er.
 

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shiggy said:
Many 2x9 setups being used. Pics basically just show there is one less chainring. But you can do 2x by removing either the inner or the outer ring. Most of my bikes are 2x (5, 8, 9) with 32/22x11-32, 36/24x12-32, and 42/30x11-34 on the 29ers. You need to match the gearing to the bike, terrain and your riding style.
Is that a Profile crankset I see there?
 

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I just switched to a 2x9. I converted my XT cranks (22/36) with a 11-34 cassette and a x-9 front. I have only been out on it a couple of times so I cant give you a thorough report.
 

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Same as JJ above, 12/32 front and 12/36 shimano cassette out back. Climbs like a goat.

 

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Birthday Collector
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I've been mainly riding SS the last 3+ years now - but a couple of years back did the Telluride-Moab trip and ran 24/36 front with 11-34 rear. I only used the lowest gear the first day (shock of riding at 11,000 ft) and only "needed" the 36 x 11 a couple of times I can recall. That can make for a pretty huge range with the 29" wheels. If I was going to run 2 x 9 for a practice off-road I'd probably do the 22 x 32 or maybe get a 34t large ring. Put a bashguard on like jjmurch1 did and you are set for almost any trail you will ride.
 

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Truvativ Noir with Blackspire Super Pro rings in a 24/36 combo, 11-32 cassette and SLX front derailleur.



 

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Naturally Organic
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I like 2x9. I also like saving weight on a bike.

Has anyone tried using an XX Trigger, XX FD and XX Crankset with XO Twist, XO RD and 9-Speed Cassette?
Does it work? Are there any issues (chain length, chain slap, spacing, etc.)?

I have used the search (also google search), but no results. If you have a link to a thread, I would greatly appreciate it. TIA (sorry if this has been rehashed).

Edit: is there any reason why it wouldn't work?
 

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Always Learning
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Major Glory said:
Anyone have pics of their 2x9 or even poor man's 2x10 they are running on their 29er ? Anything other than an XX set up. Looking for some ideas. thanks
The classic 2 x set up is the Middleburn Duo which has the following rings available in the Duo combination:

Inner ring: 27, 29, 32
Outer ring: 38, 40, 42, 44

Crank arms that work with the Duo come in ISIS or Square Taper

Mountain Bike Tandems sells the Middleburn gear for the US market.

My wife runs the 29/42 rings on her Air 9 with a medium cage rear derailleur:



I run the 27/40 rings on my Dos Niner (Dura Ace front derailleur, twist grip shifters):



Certainly not a "poor man's" version on my JET 9, as I use the Rotor Q Rings 27/40 on Race Face Turbine cranks and the rings are not cheap - especially with currency exchange rates. Again - Dura Ace front derailleur and currently using X.0 triggers on this bike.



The X.0, X.9 and X.7 line from SRAM will be coming in out in 2 x 10 later on this year. Price points will be much more attractive than the XX and I bet will shift and work just fine and dandy for a fraction of the cost of XX.:thumbsup:

BB
 
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