[Joe Bob]

So until some serious scheckels come my way....my upgrades are limited to my Italian Bikes....

Jockey wheels, aka those little roundy things on the rear derailleur. On one bike they have been making noise. Disassembly finds a rudimentary bearing. Lubed and tossed it back in. Noise is less but got me thinking.....

A search on the net finds a lot of bling bling alloy wheels with pricey bearings. Claim to be more precise on shifts, less chain noise when the SIS is adjusted correctly and supposedly less friction meaning less exertion for the same speed....

Anybody use them....They worth it?