Originally Posted by
Jipe
For me it nonsense to use the slow, inefficient, heavy 4x3 transmission with a BWR on a lightweight, reactive bike like the T-line.
This bike should have an efficient lightweight 11s speed derailleur+cassette transmission like the one of the Ultralight Helix.
My sentiments are with you. But on 349-35, that could be tough. Let's see what the numbers look like.
52x10-40 gives a good range, 21.6-86.3 gear inches. Might be possible with one of those mid-cage 3-roller RDs for more chain takeup on the high cogs. If not, with a 36 low that gives a low of 24 G.I.
Going with a 9 tooth high cog (special parts, I know), 52x9-36 gives 24-96 G.I., so if you don't need that high, that leaves room for a smaller chainring to help the lows; 46x9-36 yields 21-85 G.I., that's nice in my opinion. If a 36 cog will work with a good RD on 349s, what you want is definitely doable.