Thread: Newbie to Road Bikes, Gear popping out?

Hi all. I forgot to mention that I bought this bike used. I took it to my LBS and they said it wasn't meant to be rolled backwards. Keep in mind that I take the elevator with my bike often, so I usually back it out of the elevator. After taking it to the LBS, the same problems happen. The chain is on the bigger chainring, then starts to pop off to the smaller one, but "misses it" and the chain comes off. This is all...

Originally Posted by scoobydrew Hi all. I forgot to mention that I bought this bike used. I took it to my LBS and they said it wasn't meant to be rolled backwards. Keep in mind that I take the elevator with my bike often, so I usually back it out of the elevator. After taking it to the LBS, the same problems happen. The chain is on the bigger chainring, then starts to pop off to the smaller one, but "misses it" and the...

Originally Posted by scoobydrew Hi all. I forgot to mention that I bought this bike used. If the chain coming off the front derailleur, then adjust limit screws. If the chain is jumping around on the rear derailleur, you may need to replace the chain. I've experienced this problem, and each time, a new chain solved the problem.

Originally Posted by kerian sounds like you need an upgrade to di2. That wont need any fidgeting with the derailleurs cable tension, and neither does it have limit screws fixed

Originally Posted by scoobydrew I just got my road bike earlier this week. Coming from track bikes, I have little to no experience on dealing with derailleurs or anything of that sort. I'm experiencing the chain popping out/changing gears when I roll the bike backwards. I do it from time to time (ex. when I have to roll my bike out of the elevator). Any ideas? Also, my chain was rubbing on the front derailleur earlier today, but after I...

I find it quite common for the chain to get crossed up when I pedal backwards...(or roll it backwards) it's appears to be mostly from being on the extreme creating cross chaining (big/large) So, I never do it... rubbing, do an alignment

On new bikes (or after replacing cables) the cable "stretches" a bit. So you will have to adjust the adjuster, almost always turning it out a few clicks.

Can also be caused by bent der. hanger.

Originally Posted by Velo Dog as you've probably already learned from the Park Tool site, it's most likely a very siimple adjustment. Cause might have been a little stretch in the cable, which is normal. a half-turn or so on the barrel adjuster should set things right. most likely the problem. do a tune up, they are really easy.

http://www.parktool.com/repair/readhowto.asp?id=64