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Tub tape isn't particularly strong compared to glue and I think most velodromes require glued tubs over taped tubs. Tape is quick and easy, but if the tyre comes off then it can cause carnage. Of course, glued tubs and clinchers can also fail, but we're trying to limit the possibilities.
Bolt on cogs aren't a problem, but we're advising lockrings to be use with standard screw on cogs due to the speed transitions in this type of race.
Not racing but genuinely interested to know why not tape and what about bolt on cogs?