Originally Posted by
scycheng
Somehow I find a design that would suffer mechanical issues like this disquieting and truth be told, really make me want to replace the hub with a more robust design. Racing is one thing. Touring is something totally different.
This is, if not the strongest drive setup it is certainly one of the strongest.
Considering tne abuse our DT hub experiences on the mountain tandem the strength is substantial.
As for why these drive ratchets failed, at a guess improper heat treatment or when manfactured they induced grinding cracks.
I still have as now spares, a pair of ratchets that slipped from the old original grease turning into wax. This was our first DT type hub on a tandem. Even with the slip style abuse, none of the teeth chipped. They did however very slighly wear the leading edge of the engagement point.