11 speed Karen September 03, 2015 10:40 Updated Follow Mercury hubs as of 2013 are 11 speed compatible. You may need to purchase a cassette body - use Submit a request feature to confirm. Make sure to include a photo of your rear hub. Related articles Axle Conversion? I'm willing to convert, tell me more. "S" series v. "M" series Overview Campy compatible? Crash Replacement Comments 0 comments Please sign in to leave a comment.