You used to be able to buy just the claw part of the derailleur so that you can fit a good quality bolt on derailleur..I am sure looking at a few websites would track one down..Try SJSCycles, SPA cycles, Practical Cycles..all in the UK..Perhaps ThorUSA can help ?
http://practicalcycles.com/products/...nger-boss.aspx
Last edited by tudorowen1; 07-22-17 at 02:42 AM.