COMET INDUSTRIES 102-C High Performance Clutch (Flush) 102-C clutches are available for 1 15/64in., 1 1/4in. and 1 5/16in. belt widths See Comets 108-EXP clutches for 1 3/8in. belt widths and additional 1 1/4in. widths Lightweight, strong and reliable Especially suited for high-performance use Completely adjustable for any snowmobile engines power curve - simply change cam arms and spring