CWGCWG

In the intro to 2x10 you mention a 24 cog option for the front chain ring. My understanding (based on my choices on a free XTR 2x10 drivetrain certificate I won last week at a race) was the options are: Chain ring options: 38x26 40x28 42x30 Cassette Ranges: 11-34 11-36 So doing the math. 22:34 =0.6471 (my present lowest gear on my 3x9 29'er) 22:32 =0.6875 (other typical low gear option) 26:36 =0.7222 (lowest gear on 10x2 system) 24:36 =0.6666 (ratio if you use the 24:36 quoted above but I don't think exists) Comments? Seems like the 26:36 granny gear is just not going to be low enough on a 29'er.