Cogs 11-34 vs. 12-34
what are the advantages and disadvatages of Cogs:
11t-32 , 11t-34, 12t-34
11-32 v 12-34 etc...
11-32 is lighter than 12-34 [and you can run your chain shorter]
12-34 has a nice even ratio spacing [check this out on Shimano website]
12-34 is better if you only run 2 chain rings up front as you have a lower 1st gear
12-32 closer ratios [but only just]
Hope this helps.
And 11-34 is good if you only have one ring up front as it gives you the widest spread at the rear.
you avoided the 11-34, why is that?
Originally Posted by Chaser
Anyway, to the OP, if you need the 34, then just pick 11 or 12 based on the highest gear you expect to actually use. I have 11-34 on all my MTbikes but I run 22-32-BG on all my bikes too.