AF Rayspeed Mammoth 250cc Cylinder Head

AF Rayspeed Mammoth 250 cc Cylinder Head for Lambretta 200 TV/​SX/​DL/​GP

• Ø 72 mm
• With enlarged cooling surface

The ‘Mammoth’ cylinder heads for Lambretta motors, produced by AF Rayspeed, have a noticeably larger circumference than the original items. This feature provides a noticeably larger cooling surface area and a more efficient heat transfer. They also include extra fins on the underside and a number of openings to improve the airflow across its surface. A special threaded hole is also featured to facilitate the fitting of a SIP/KOSO temperature sensor.

They have a compression ratio of 10:1 with a 1.2mm squish band tolerance and original stoke measurement.