Utilizes the same 14mm x 3-3/8" wide belt used by the top fuel racers on 600 horsepower machines Kevlar clutch consists of nine 6-3/8" diameter friction plates and 11 steel drive plates Special pressure plate uses up to nine springs for varying spring pressure to accommodate any size motor on the market Hub is made from 7075 aluminum and hard anodized for superior strength Includes oil filter mount and side guard