medusa569
100 W
recently bough this rear derailler and am having a dickens of time getting it set up. think it has what called a shadow technology and an extra pulley wheel. t doesn't seem to be positioned right but can't see anyway but one to mount it onto the bike. he problem is the unit itself seems to sit too high on the bike with the pulleys sitting too high up near the bike frame it will eventually collide into the freewheel for half 0f the shifting. es i've tried playing with all the screws but nothing seems to significantly change anything as far as this spacing is concerned. elp