Just purchased a climbing cassette for my 9spd ultrega set up. Installed the cassette on a set of wheels I've used for a long time but the gears seem to vibrate and are not smooth when pedalling. Has anyone experienced similar problems? What was the solution?
Wheels: mavic cosmos
Ultegra throughout.
New cassette: 12X27
Wheels: mavic cosmos
Ultegra throughout.
New cassette: 12X27