Ultra-lightweight titanium nuts with innovative locking system. Tightening a grub screw pushes a plastic pin against the thread - the breakout force is approx. 70 % higher than a conventional nut.
Ultra light with just 20 grams.
Its expensive, refined look makes it the perfect companion for the KTS chain tensioner, bit it can be used anywhere else with the same thread (e.g. upper headset).