S&S revised the design and added material to the piston wrist pin area of their new forgings to achieve two very important benefits. The upper rod area, where the rod beam meets the wrist pin boss, has been blended together with a large, smooth radius that evenly distributes the stress load on the rod, and the small ends of the rods are now fully machined. This makes for a great looking set of rods, and increases strength by maintaining a uniform material thickness around the wrist pin. The machining process also keeps the difference between the small end weights of each rod to a minimum-allowing for the closest possible balancing job and a smoother running engine. S&S Heavy Duty connecting rods are top of the bill for street applications. Connecting rod sets come complete with front and rear rod, steel bearing cages, and S&S crank pin. Available in stock 6.926" length for 1986-1999 Sportster and 1994-2002 Buell, as well as stock 7.440" length for 1941-1999 Big Twin.