Shown in this picture is light weight 2 & 3 speed transmission. We reduced rotating weight from the 4-speed transmission by 4 TO 7 lbs. We also reduced rotating weight by locating the reverse gear's from the tail housing into the main case. We use all roller bearings on the main shaft and cluster shaft with needle thrust washer's for lower friction the complete unit with the option of remming gear's will keep the transmission running cool for winning race's.