Bicycle Mechanics - Rust on the Rear Cassette Gears

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.



PDA

View Full Version : Rust on the Rear Cassette Gears

rob24DC
08-10-04, 09:47 AM
I am new to cycling so I may not have all the lingo correct. I just bought a Giant road bike from Ebay and found that it had pretty heavy rust on the Rear Cassette Gears. Am I better off trying to get some product to remove the rust and then lube it or should I just get a new set of gears?

Retro Grouch
08-10-04, 10:36 AM
How's the chain look? I never worry about rust on the rear cogs, just lube your chain and, when you run through the gears, the cogs will take care of themselves.
MichaelW
08-10-04, 11:04 AM
Hopefully that is a sign of a rarely used bike. Its not a problem, and anything you apply to remove the rust (such as WD40) stands a good chance of seeping inside the bearings, where it will dissolve grease. Just wipe it off with a rag.
Are the teeth in good shape or worn to a shark's fin? If they are good then keep the cogs.

seely
08-10-04, 03:00 PM
Automotive brake parts cleaner does a decent job of removing some rust. If its just light oxidation not a big deal, but if its actually eaten and pitted the metal time for a new cassette most likely.
rob24DC
08-10-04, 07:33 PM
The chain is looking the same as the rear cogs.
rob24DC
08-10-04, 10:14 PM
Thanks for the suggestions everybody.