13 and in lycra

Hey guys, I just replaced my gearing from a wide ranged 14-32 6 speed to a 13-23, and I am having trouble shifting into my largest 2 cogs, the second largest isn't as bad, but I have to shift to the smallest then through the shifter down to get it to shift to the largest, what should I do?

FPSDavid

Limit screws.

KevinF

Rear derailleurs have what is known as a B-screw. Its job is to bring the derailleur as close to the cogs as possible. Your largest cog is now a lot smaller, so your derailleur is probably way below where it should be.

Depending on the make of your derailleur, the B-screw is in various places, and some designs make it so tightening the B-screw brings the derailleur closer to the cogs, and some make it so loosening the B-screw bring the derailleur in closer. Post the make / model of your derailleur and somebody can probably give you some specifics.

Chain length can also mess you up a bit. i.e., your chain can probably be made quite a bit shorter now.

Was it shifting fine with the 14-32? The 13-23 is a six-speed cluster as well, right? Do you have the 13-23 fully seated on the hub?

KevinF

If it was shifting fine with the 14-32, and the new cassette is installed right and is also a six-speed setup, then the limit screws should be fine.

Homebrew01

But since it's a 6 speed, maybe it's a freewheel, and the new one has the cogs slightly more inboard. In that case, the low limit screw might need to be let out a little bit to allow the rear derailleur to fully reach the big cog.

Is this "indexed" gearing, or "friction" ?