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BSA Piston STD OHV 1947-52 85mm. 1947-1952. = 85mm B33, B34, B34 Gold Star 8.5:1 YB34, YB33, ZB34, BB34  Long stroke  Models only. 
Conrod number o/e 66-483 STD = 85 mmincluding gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thouPlease look at all pictures 

Ariel Piston 350cc O.H.V. +080 = 74 mm
NG. NH. WNG Red Hunter compr. ratio 6.2:1
incl. piston rings, gudgeon pin, circlips.
Piston Clearance 0.12 mmPlease look at all pictures

Indian 600 Scout JP Piston Pair +060. 1925-1928
STD: 69,849mm +060 = 71,35
1925-1928.
including Gudgeon Pin, Piston Rings and circlips
Piston Clearance 0.12mm or 45thou
original bore 2.3/4"
Prince 348cc ask for quote. 1929-1931 1/32" longer.Please look at all pictures

BSA CB/DB Goldstar 350cc Piston 030
STD: 71 mm +030 =71,75 mmJP Piston
Piston Clearance 0.12mm or 45thoumiddle Gudgeon to top pin: 40 mmMiddle Gudgeon pin to first step: 33 mmGudgeon Pin 19 mmPlease look at all pictures

Ariel Piston NG. NH. Red Hunter +060 = 73.5 mm350 cc. OHV CR 7.5:1 incl. piston rings, gudgeon pin and circlipsMeasurements see last picture. and techn. data pleasePiston Clearance 0.12mm or 45thou 

Ariel Piston NG. NH. Red Hunter CR 7.5:1 +030 = 72.75 mm350 cc. OHV CR 7.5:1 incl. piston rings, gudgeon pin and circlipsMeasurements see last picture. and techn. data pleasePiston Clearance 0.12mm or 45thou

BSA B50 Piston STD 84mm 1971-73Victor 500, MX, B50T, Gold Star B50SSCR: 10,184mm = STDWith Gudgeon Pin, Circlips and Piston RingsPiston clearance 0,12 mmGudgeon Pin diameter 19 mmJP

BSA B50 Piston +030 84,75mm 1971-73  +030 =84,75 mm Victor 500, MX, B50T, Gold Star B50SS CR: 10,1 including gudgeon Pin, piston rings and circlips Piston clearance 0,12 mm Gudgeon Pin diameter 19 mm  

BSA B50 Piston +060 =  85,5mm 1971-73 Victor 500, MX, B50T, Gold Star B50SS CR: 10,1 including gudgeon Pin, piston rings and circlips Piston clearance 0,12 mm Gudgeon Pin diameter 19 mm JP

AJS Piston 498 cc SV. 1928-30. K9. M9. R9 +030STD = 84 mm   +030 = 84.75 mmCompression hight 1 29/32”Gudgeon pin diameter 11/16”Piston Clearance 0.12mm or 45thou
incl. Gudgeon Pin, Piston Rings and CirclipsPlease look at all pictures 

AJS Piston 498 ss SV. 1928-30. K9. M9. R9 STDSTD = 84 mm  Compression hight 1 29/32”Gudgeon pin diameter 11/16”Piston Clearance 0.12mm or 45thou
incl. Gudgeon Pin, Piston Rings and CirclipsPlease look at all pictures

AJS Pistons V-Twin 996 cc 1928-30 Pair. M1. M2. R2. Standard, De Luxe +060STD = 84 mm   +060 = 85.5 mmCompression hight 1 29/32”Gudgeon pin diameter 11/16”Piston Clearance 0.12mm or 45thou
incl. Gudgeon Pin, Piston Rings and CirclipsPlease look at all pictures

AJS Pistons V-Twin 996 cc 1928-30 Pair. M1. M2. R2. Standard, De Luxe +020STD = 84 mm   +020 = 84.5 mmCompression hight 1 29/32”Gudgeon pin diameter 11/16”Piston Clearance 0.12mm or 45thou
incl. Gudgeon Pin, Piston Rings and CirclipsPlease look at all pictures

AJS Pistons V-Twin 996 cc 1928-30 Pair. M1. M2. R2. Standard, De Luxe +040STD = 84 mm   +040 = 85 mmCompression hight 1 29/32”Gudgeon pin diameter 11/16”Piston Clearance 0.12mm or 45thou
incl. Gudgeon Pin, Piston Rings and CirclipsPlease look at all pictures

AJS Piston 498 cc SV. 1928-30. K9. M9. R9 +020STD = 84 mm  +020 = 84.5 mmCompression hight 1 29/32”Gudgeon pin diameter 11/16”Piston Clearance 0.12mm or 45thou
incl. Gudgeon Pin, Piston Rings and CirclipsPlease look at all pictures

AJS Piston 498 cc SV. 1928-30. K9. M9. R9 +060STD = 84 mm   +060= 85.5 mmCompression hight 1 29/32”Gudgeon pin diameter 11/16”Piston Clearance 0.12mm or 45thou
incl. Gudgeon Pin, Piston Rings and CirclipsPlease look at all pictures

AJS Piston 498 cc SV. 1928-30. K9. M9. R9 +040STD = 84 mm   +040 = 85 mmCompression hight 1 29/32”Gudgeon pin diameter 11/16”Piston Clearance 0.12mm or 45thou
incl. Gudgeon Pin, Piston Rings and CirclipsPlease look at all pictures

AJS Pistons V-Twin 996 cc 1928-30 Pair. M1. M2. R2. Standard, De Luxe STDSTD = 84 mm   Compression hight 1 29/32”Gudgeon pin diameter 11/16”Piston Clearance 0.12mm or 45thou
incl. Gudgeon Pin, Piston Rings and CirclipsPlease look at all pictures

AJS/Matchless 500cc M18 G80 Piston +020=83mm 1947-55Compression: 8.5:1including gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thouPlease look at all pictures

Ariel Red Hunter Piston 500cc STD = 81.812mm
Compression Ratio 7.5 : 1
Make JP Piston Clearance 0.12mm or 45thou OHV Red Hunter, VG, VH Measurements see last picture and techn. data Incl. Gudgeon pin, piston rings, circlips

9:1 Compr., Top Qualit. with Piston Rings, Gudgeon Pin and Circlips
for Longstroke

63.5 mm

BSA A7 Piston +60 1946-49
Triumph T100 PU +20

Price per Pair
Piston Clearence 0.12mm or 45thou

Ariel Red Hunter Piston 500cc +020 = 82.3 mm
Compression Ratio 7.5 : 1
Make JP OHV Red Hunter, VG, VH Measurements see last picture and techn. data Incl. Gudgeon pin, piston rings, circlips Piston clearance 0,12 mm or 45thou

 

Ariel Red Hunter Piston 500cc +040 = 82.8 mm
Compression Ratio 7.5 : 1
Make JPOHV Red Hunter, VG, VHMeasurements see last picture and techn. DataIncl. Gudgeon pin, piston rings, circlipsPiston clearance 0,12 mm or 45 thou534 g incl. pin, clips and rings

BSA M21 Piston +080 = 84 mmIncl. gudgeon pin, piston rings and circlips
JP
Gudgeon pin diameter: 19 mm
Compression height: 31 mm
Piston Clearance 0.12mm or 45thou 

BSA M21 Piston +030 with gudgeon pin and rings
030= 82.75 mm

Incl. gudgeon pin, piston rings and circlips

Gudgeon pin diameter: 19 mm
Compression height: 31 mm
Piston Clearance 0.12mm or 45thou Peter Hepworth