BSA DBD Gold Star Piuston Pre Unit 500cc Piston +020. BSA Unit Gold Star 50085.5 mm 9.5:1 Piston Clearance 0.12mm or 45thouwith Piston Rings, Gudgeon Pin and Circlips
Norton 600cc 650cc Piston. Pair GPM +20 68,5 mm Diameter, new at 600 cc Compr. Ratio: 7.4:1 at 650 cc 8.25:1 middle gudgeon pin-top: 40 mm Gudgeon pin diameter: 17. 5 mm - 11/16"
Piston Clearance 0.12mm or 45thou 297 g weight Mod. 77 v- 1956-58 Mod. 99 1956-62 Nomad 1968 650 1960-63 Mod. 99SS 1961-62 650 SS 1961-70 including gudgeon Pin, piston rings and circlipsprice per pairPlease look at all pictures
1946-1953 STD= 85 mm Hep No. is 11341Compr. ration 6.8:1 Compression Height: 31mm Piston top - Gudgeon pin top: 22 mm Gudgeon pin diameter: 19 mm
to be used with flywheels 65-1235 und 65-1235 to be used with conrod 66-482 Piston Clearence 0.12mm or 45thou long conrod version with Piston Rings, Circlips and Gudgeon Pin
compression ratio 7:1, STD=71mm price per Pair Triumph, TR6,T120,T110 650cc Alloy Head pre unit + Iron Head if you wish to lower the compression of an iron head engine, these pistons can be used. Giving approx. 6.76:1
Piston Clearance 0.12mm or 45thou complete with Piston Rings, Gudgeon Pin and Circlips