BCS PowerSafe® Two Wheel Tractors Fitted with BCS PowerSafe® Clutch From 2011 onwards BCS 'Action' & 'Serie 06' Two Wheel Tractors From 2006 - 2011 (approx) BCS 'Serie 94' Two Wheel Tractors From 1994 - 2006 (approx) All Other BCS Two Wheel Tractors From 1979 (approx)