11 speed 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. Troubleshooting Steps 2018 Hub Specs 2017 M3, M5, M9 Hub Specs "S" series v. "M" series Comments 0 comments Please sign in to leave a comment.