SPI QRS smooth Shift Bearing (121-227)

Reduces all the spring stess and scrub wit ha extremely high grade bearing. no more need for plastic washer, Improves backshift, Imporves cinsistency in performance, Full stainless bearing. (Works on all 2008 Ski-doo QRS secondary machines) & 2012-18 Arctic Cat Secondary, 2018-21 Arctic Cat with boss secondary