As an experiment 6 months ago installed jockeys with bushes on one of our Rails and identical jockeys with bearings on the other. (Both sets from BBB cycling)
The reason I bought them was because they do not have holes in them to trap grass/twigs/other stuff, and to compare bushes vs bearings.
So far both work equally well but the jockeys with bearings cost twice as much. Big advantage is, as expected, much less stuff trapped/dragged/wrapped into (especially lower) jockeys with trapped mud to get ground into the axles and hangers.
The reason I bought them was because they do not have holes in them to trap grass/twigs/other stuff, and to compare bushes vs bearings.
So far both work equally well but the jockeys with bearings cost twice as much. Big advantage is, as expected, much less stuff trapped/dragged/wrapped into (especially lower) jockeys with trapped mud to get ground into the axles and hangers.
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