Cast Iron. Standard size: 0.5647″ O.D. (14.34mm); 0.3395″ I.D. (8.62mm); 2.800″ OAL (71.12mm). Cast iron offers maximum durability and wear resistance for long distance touring. The standard since the invention of the piston engine.
KPMI, intake/exhaust valve guide. Cast iron. STD
€26.20
29-73 45″ (750cc) Flathead (NU)