OS 50 Front(steel) and Rear Stainless Steel Upgrade

Premium stainless steel replacement bearing.

Stainless steel is far more resistant to rusting than regular bearing steel. This steel is high in chromium (12-18%) which creates a protective oxide layer on the outside of the steel. The type of stainless used in bearings is called 440 type and is heat hardened to Rockwell 59-62 (bearing hardness). Unlike softer stainless steels, 440 stainless is magnetic

Standard steel Front Bearing 

Stainless Steel Upgrade Rear Main Bearing

These bearing have no warranty , and as with any engine modifications you do so at your own risk!