Originally Posted by
vwOvw
Thanks for the replies! I forgot to mention I bought a 10 spd cassette but its a 11-36. Mine is currently a 11-34 9spd. will the 36t work? I put a generator hub on and i had to put washers on the disc to space it out because there wasn't enough adjustment side to side on the TRP calipers. That's one reason I thought I would swap out the brakes. I'll get a picture uploaded when I get back from work.
RD capacity is something to pay attention to. Both chain-wrap capacity, as well as clearance for 36 T largest sprocket.
If I remember you have Sora RD with a medium sized cage (GS), it has a chain wrap capacity of 41 T, and specified max cog size of 32 T.
(double check for your particular model of Sora RD, this is a based on a guess
)
You could squeeze a 34, as you have already, but not 100% sure about 36. Screwing the B screw all the way down, or from the other side, to make it move the cage low enough for the 36 T cog - might do the job.
For chainwrap cpacity, you'll have 53-30 + 36-11 = 23 + 25 = 45. Again, just a bit "over the top" for the RD. Wrote here about how that can be handled (under 1. Rear derailleur chain wrap capacity not big enough):
Chain length sizing for bicycles with derailleurs