AJS/Matchless Piston 592cc OHV Mod. 30/G11 1956-58 STD Pair72 mm - 2.8346"CR 7.5 :1 JP Piston Made in Australiaincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thouprice per pairPlease see last pict. for measurements
Vincent Piston +030 500ccWith Gudgeon Pin - DM: 7/8", Circlips and Piston Rings 9:1 Compression, Compression Hight: 32mm Piston Clearance 0.12mm or 45thou, cast Parts Suitable for Use Soleley or Principally With Spark-Ign. Int. Combustion Piston Engines domed with valve pockets JP Piston Made in Australia
compression ratio 9:1, Year: 1950-55 (std)Please look at all pictures