Tried, tested and built to handle high-horsepower engines Consistently smooth shifting even after hours of use Wider rollers for increased bearing area (33% more) 1997 and newer 108-EXP clutches include special recessed mounting bolt with special pilot washer Features a bushing in the movable face Uncalibrated clutches are sold without cam arms and spring Accepts OEM starter rings for electric starters 108-EXP clutches use the same cam arms and spring as the 108-C. Change clutch to accept 1-7/16ö belt width by installing one spacer washer under the spider washers. A flush bore depth indicates the taper begins exactly at the inner edge of the fixed face casting. 1-3/8ö standard belt width and 1-7/16ö optional belt width. Arctic Cat gear bosses.. CLUTCH 108EXP