Well there you go. Maybe there is a standard aluminium steerer ID. I can't think what other reason that it would only be for alu. I have had issues with carbon bungs being too small/big for certain carbon forks so there certainly is no standard for carbon steerers ID.
Well there you go. Maybe there is a standard aluminium steerer ID. I can't think what other reason that it would only be for alu. I have had issues with carbon bungs being too small/big for certain carbon forks so there certainly is no standard for carbon steerers ID.