IG chain system to a HG chain system
I'm a noobie. I installed a CS-HG41-7 seven speed cassete with a new KMC Z72 chain. The casette and chain are HG Rear derailleur shifts perfectlly up and down. Front derailleur hangs up when shifting up and down from mid gear to granny gear. Also the front chain ring is over 15 years old. Is the shifting problem from a worn chainring or because the cassette and chain are HG and the chain ring is IG? My bike is a 95-96 Trek 930. The sticker on the chainring says "Use IG Chain Only".