- 2×10 vs 3×10 29er use?
I run 26/38 on my 29er which I find works well, when I first bought a 29er I used 28/42 (sram) and found myself struggling on steep stuff.
I try to run it in the big ring (38) as much as possible and use the smaller ring as a granny for the climbs which I find works well with a 11/36t cassette.
As for chain line, follow the shimano instructions for the type of bottom bracket you have.
Edit: sram do 22/32 rings if you want to go that low.Posted 4 years agobinnoMember
Before i buy the same old 24,32,42 3×10 replacement cranks, does anyone have a good view on running 2×10 shimano cranks?
I spend most of my time in 32 front and run the larger rear cassettes. Very occasionally do i need to drop to the granny, but it is required from time to time. I rarely use the big ring.
Looking at the rings offered, 26 + 38 in XT is the closest thing to what i suspect I’m looking for, where as XTR (not in my price range) has 26 x 36 which looks better to me?
Is the chain line adjusted via the crank arm on the same BB, or do you add spacers to place the 2 rings central to the rear cassette?
Would i be better off buying individual chain rings and adapting a 3 ring chainset?Posted 4 years agojimwMember
I have a 3×9 setup on my Cotic 29er, mostly because I already had the cranks, mechs shifters etc. lowest gear is 22/34 front/ rear. Highest is 48/11
On my FS Canyon 29er it has a 2×10 XT with lowest 24/36 highest 38/11
Having been a 10 speed naysayer in the past I have now come to the conclusion that for 95% of the time it is easier than the 3×9 setup. I don’t notice the slightly higher low gear, even on some of the really steep stuff round where I live. I do feel the lack of a high top gear on the road and on really fast singletrack. I am not in any rush to spend all the cash required to ‘upgrade’ the Cotic to 2×10 as that works fine as well, just is more work on the shifters. If you have the cash to change the cranks setup you may find it worthwhilePosted 4 years agoMrTallMember
My latest 29er is running an XT double with 26/38 with the 11-36 cassette and i’m finding it very good indeed. The 26t is a far more useable gear (for me) than a 22t and the 38t is more than enough for 99% of the rest of my riding. A 44t would be good for the odd bit of road but then that’s what my road bike’s for.
I won’t be swapping over from all my other 3×9 bikes yet but any future bike purchases will likely be 2×10. And the clutch mech (SLX) seems very good as well and is certainly quieter.Posted 4 years ago
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