The forged steel connecting rods have replaceable split-shell bearings at the crankshaft end to crank and piston pin end has solid bushing.Weight classes are can be seen with different colors such as blue, red and green. Pistons contain three rings, two in form of upper compression rings and one lower one-piece oil scraper ring; piston pins float full and use circlips for retention. Also, the use of graphite coating is incorporated in piston skirts to reduce friction and noise.