Hi everyone... Kinda new in this sport and was wondering anyone can give me some advice as to how to tighten the rear hub for a Mavic Cosmos. Its wobbling (about < .5mm of play) and I'm scared that it might damage it if I continue using it but the LBS mechanic said its still within specs.... What tools do I need to do this? Thanks. I'm mechanically inclined as I work on cars and motorcycles too. Thanks again.