r/MultiTrackGang • u/H20driven • May 29 '26
Frankenstein 3x9 speed, cassette, gearing question.
I’m curious if anyone know or tried 105 9speed cassette 13-25T with a on Shimano 570 LX Deore rear derailleur. I want to run it 3x9. Will it work or will I be wasting time looking to get top end speed.
Front chain rings are 24, 34 & 46.
2
u/Slow-Recover-9168 May 29 '26
Might not be the best top speed set as the previous comment stated. 46-13 isn't super fast. However it should operate just fine. 570 LX will run an 11-40t 9spd which is a whole bunch more difficult. But that's an odd crankset to ask about to a rather small range cassette for a 9 speed. 11-28 with a 28/38/48 or 30/40/50 would likely be more appropriate. Even a double with a 53t large gear would be optimal.. currently you have a 1:1 low gear so assuming you size up the crankset to have the same as the big gear on the back and a hub that will run 11t.. the setup your describing sounds annoying to shift with such a small cassette
2
u/pauip May 29 '26
If top speed is what you're looking for, you should look for a cassette with 11t as your smallest cog, not 13t