It’s manufactured improperly. Can only fit a 1mm spacer instead of 1.85 for a 9 speed bike. I ruined threads on original. They are too thin on the edge and brittle. As did another reviewer. Received this one for around 70$. Same day I received it, it went on sale on Amazon authorized Saris seller for 29$. Customer service refused to price match their own official Amazon store. Not a great first time experience.