Polishing chrome spokes and other small parts can be difficult without the appropriate tools. Chrome is quite soft and only a thin layer of it gets bonded to the metal. The dirtier it gets, the more vigorously you have to clean it--and the more likely you are to scratch it. The best way to avoid this damage is to keep the hard-to-access parts of your chrome polished and clean with a Dremel.
Wash your chrome with a rag or sponge dipped in a bucket of soapy water.
Place painter's tape on any chrome-adjacent parts that you want to avoid accidentally buffing with the Dremel's polishing pad.
Attach the appropriately sized buff, felt bullet or cloth wheel to the Dremel.
Add a drop or two of a commercial chrome cleaner to the area you intend to polish. Eric Ronning, author of "How to Clean Chrome" recommends Flitz Stainless Steel & Chrome Cleaner, Mothers Chrome Cleaner, Turtle Wax Chrome Polish or Bar Keeper's Friend.
Turn the Dremel tool on and set it to rotate at the low and middle speeds--between 12000 and 24000 rpms.
Polish the chrome by gently pressing the buffing pad against the chrome. Add more drops of chrome cleaner as your previous application is buffed away.