I know this is an OLD topic and much talked about but Google is failing me here. I have converted several 10-speed-only hubs to 11-speed by grinding down the freehub body by ~1.85mm but on Shimano hubs that will not work.
I have seen a mod where people (see https://www.youtube.com/watch?v=cazQt5oleo4) take some material off the back of the cassette body, but no one has confirmed that this will work without interfering with the spokes. I have a couple of CX wheels that I would like to use, and before I bust out the grinder.......or rebuild the rear wheels with new hubs I thought it would be worth asking.
I have Shimano Ultegra 6600 hubs laced up with traditional J-bend spokes. Looking to run an 11-28 casette....
I have seen a mod where people (see https://www.youtube.com/watch?v=cazQt5oleo4) take some material off the back of the cassette body, but no one has confirmed that this will work without interfering with the spokes. I have a couple of CX wheels that I would like to use, and before I bust out the grinder.......or rebuild the rear wheels with new hubs I thought it would be worth asking.
I have Shimano Ultegra 6600 hubs laced up with traditional J-bend spokes. Looking to run an 11-28 casette....