Resurrecting this thread as I was just cleaning gunk out of my DT Swiss 540 tandem hubs from a 2015 Cannondale road tandem that were making a squealing noise. All fixed and was easy with DT's online resources, however, I stumbled on this question of 18T verses 32T verses 54T ratchet rings. I read this whole trail hoping to get an answer on whether they worked for tandems but didn't get it. I need to service my freehub, it has the 18T ratchet rings in it now, is anyone running the 54T in their DT Swiss tandem freehub? Any issues? I like the thought of quicker engagement but we are a heavy team 390lbs including bike (but we are fast). Any issue with the smaller but higher number teeth? Thank you!