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Discussion Starter · #1 ·
Last fall I put a new Shimano 105 rear derailleur on the bike and last night I decided to pull out the pulleys and clean and lube them. I was very careful to not mix them up when taking them off. I then held them against each other and saw they were the same diameter and tossed them on the parts washer.

I take them out and I see they are indeed different. Oops. One pulley has a metal bushing and one does not. The one with the busing was marked G-pulley and the one that was all plastic just has a rotation arrow.

I have never heard of the term G-pulley. Is that the same as the jockey pulley, which is the one closest to the cassette? An I correct putting the pulley with the bushing in the position closest to the cassette?

Ride Safe,

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