I just installed an 52/36 chainring up front and sized a new chain to go with it.
Looks like the rear derailleur is at a funny angle when I change to the largest sprocket at the rear and keep the chain in the 52T. I'm running an 11-34 cassette at the rear for reference.
by theaaronson
16 Comments
That looks fine
Too short IMHO. Sorry.
You shouldn’t ever be in that gear combination when riding
If shortening the chain more would produce slack on the opposite combination, then you had no choice. Mine looks similar I think.
I would check if you can move the lower of the derailleur toward the front of the bike. If there is still some travel, I’d probably run it on the basis the derailleur isn’t being stressed and the combination of gears wouldn’t be used typically, assuming shifting is fine.
Yes, I think you can squeeze out 1 more link.
/s
You definitely need to add a couple links to that chain not saying you couldn’t run it the way it is, but if you were to have an issue like your chain breaking, you wouldn’t be able to use all your gears once you fixed the chain
Turn on semi synchro shift to prevent you from cross chaining and you will be fine. Should be shifting to the little ring before you hit that gear anyway. You can also just turn on full synchro shift and it will drop you into the correct gear anyway.
Yes
Too short you are gonna ruin that rear derailleur!
Just follow the guidelines in the 105 dealers manual.
Can you push the rd up a little farther in that gear? If so its good! just needs a little extra play. It can’t be maxed out.
Why are you full cross chaining is the real question
That RD is reaching for it’s life
Yes
Look up the shimano guide to chain sizing. Iirc the length should be 5/6 links longer than the length required to loop around the largest rings in the front chainring and cassette. Thats the guide for hardtail