Technical Q&A with Lennard Zinn: Wheels, grease, oil and a chunk of chain
In the grooveDear Lennard,I use the Fulcrum Racing 1 wheels with a Shimano drive train, thoughI have a titanium (11-25) cassette made by Cycle Dynamics. The freehubbody is grooved by each of the cogs (see attached photo). My bikeshop says this is a normal consequence of using a cassette with individualcogs. I don't buy it. I think it is the result of the softer material (aluminum)used in this free hub body. My other wheels, with steel free hub bodies,are not grooved. My drive train makes a periodic, soft noise that I havenot been able to eliminate, and I fear it may be related to the