516191 54-86 XL connecting rod roller set. +.0030"

This connecting rod roller set from MCS is an essential component for high-precision bottom-end rebuilds on 1954 to 1956 K and KH models, as well as 1957 to 1986 Sportsters. These rollers are oversized at plus .0030 inches, allowing you to achieve the exact clearances required for a smooth-running engine. The set is sold as a complete package of 51 pieces, including 34 short rollers and 17 long rollers. For reference, the standard sizes are .1875 inch OD by .2940 inch for the short rollers and .1875 inch OD by .4800 inch for the long ones. These are precision-ground fasteners built to handle the demands of Ironhead and early Evolution Sportster crankcases.