GM TRIPLE FRONT DERAILLEUR GEAR MECH 28.6 DOWN PULL FOR UP TO 42T CHAINRING

THIS IS A DOWNPULL FRONT DERAILLEUR FOR MOUNTAIN BIKES & ATB's FOR USE WITH DOUBLE OR TRIPLE CHAINSETS WHERE THE TOP CHAINRING IS 42 TEETH OR LESS. ON TREBLE CHAIN WHEELS MAX DIFFERENCE BETWEEN TOP & MIDDLE CHAINRING CANNOT BE MORE THAN 8 TEETH.