You should be able to get the plastic bit to replace your broken bit from anyone that sells Fone kites or you can contact M8 and they may be able to help you out.
With the older chicken loops, first check that you can remove the nut holding the plastic bit on. Get a pair of pliers and screw off the donkey dik and then you will need a deep socket to remove the nut. If it has never been off in the last 2-3 years there is a chance you may destroy the thread. If this happens definatly replace it with the new chicken loop.
Fitting the new chicken loop is easy, seing you have allready removed the old chicken loop from the centre line all you need to do is to push the centre line and safety line through the new UPS and install a pin in the centre line and pull it up in to the UPS and fit a small metal ring to the safety line. all done. The new chicken loop is a lot stronger will lock in to the bar when unhooked and the donkey dik will swing out of the way.
Hope this helps.
