ACL Race Series connecting rod bearing set, standard size, for the BMW N20B20 / N20B26 2.0L turbo four-cylinder. ACL Race Series bearings (ACL Race Series Application Guide 2023): micron-tolerance machining for consistent wall thickness and crush, copper-lead-tin lining with a lead-tin-copper overlay, increased crush and eccentricity for bearing retention and oil-film formation, no flash plating.