I own a '85 Nishiki Cresta that came with a full Suntour LePree drivetrain, I was told the LePree was an exclusive for Nishiki and the 3 pulley derailleur was only produced for one year. My personal experience is that it works relatively well and it can wrap large amount of chain. The bike came with a 28T granny gear and the rear freewheel was 14-30.
