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JAP Twin SV Piston Brough Superior/Zenith/Coventry Eagle +040 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou JP / Price per Pair
STD= 85.725mm
1924-39 Piston
1000cc K Type 1923-29= 85.7 x85
1150cc LT, LTZ,L Type = 85.7 x95

500cc= Model K
85.7mm x 85

550cc = Model L
85.7mm x 95

600cc= Model U
85.7mm x 104

Gudgeon Pin: 13/16" - 20.7mm
Compression Height: 1 5/8" - 41.3mm
Piston Length: 3 1/4" - 82.5mm

JAP Twin SV Piston Brough Superior/Zenith/Coventry Eagle +060 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou JP / Price per pair
STD= 85.725mm
1924-39 Piston
1000cc K Type 1923-29= 85.7 x85
1150cc LT, LTZ,L Type = 85.7 x95

500cc= Model K
85.7mm x 85

550cc = Model L
85.7mm x 95

600cc= Model U
85.7mm x 104

Gudgeon Pin: 13/16" - 20.7mm
Compression Height: 1 5/8" - 41.3mm
Piston Length: 3 1/4" - 82.5mm

JAP Twin SV Piston Brough Superior/Zenith/Coventry Eagle +030 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou JP / Price per Pair
STD= 85.725mm
1924-39 Piston
1000cc K Type 1923-29= 85.7 x85
1150cc LT, LTZ,L Type = 85.7 x95

500cc= Model K
85.7mm x 85

550cc = Model L
85.7mm x 95

600cc= Model U
85.7mm x 104

Gudgeon Pin: 13/16" - 20.7mm
Compression Height: 1 5/8" - 41.3mm
Piston Length: 3 1/4" - 82.5mm

JAP Twin Piston STD. / Pair including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou 1000cc OHV
Model KTO
KTOR
STD = 85.7 mm x 85 mm Bore and Stroke
Gudgeon Pin D: 20.5mm
Compression Height: 32.45mm
JP / Price per pair

JAP Twin Piston +040 / Pair with Gudgeon Pin, Piston Rings and Circlips
1000cc OHV
Model KTO
KTOR
STD = 85.7 mm x 85 mm Bore and Stroke +040
Gudgeon Pin: 13/16=20,6mm
Compression Height: 32.45mm Piston Clearance 0.12mm or 45thou JP

JAP Single Cylinder Piston STD. including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou 500cc OHV
Model
KO
KOR
STD = 85.7 mm x 85 mm Bore and Stroke
Gudgeon Pin: 13/16=20,6mm
JP

BSA Piston +040 Pair. 1950-59. also Ariel 1952- 8:1 Compression including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou Price per pair  

BSA A75. Triumph T150 Piston +060 Set Cast AlloyCompression ratio 9:1including gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thouset of 3Please look at ALL pictures

BSA Piston Std. 500cc B50/Goldstar
84mm
Compression: 10:1
Compression height: approx. 32.8 mmWeight 459 g

Gudgeon Pin Diameter: 19mmincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thou

BSA Piston +40= 86 mm  OHV 1947-52 . B33, B34, B34 Gold Star 8.5:1 JP Long Conrod mod. only. Rod number o/e 66-483 85mm std Please look at all pictures including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou  

JAP Twin Piston +020 / Pair including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou 1000cc OHV
Model KTO
KTOR
STD = 85.7 mm x 85 mm Bore and Stroke +020
Gudgeon Pin: 13/16=20,6mm
Compression Height: 32.45mm
JP

BSA Piston STD OHV 1947-52 85mm. 1947-1952. = 85mm B33, B34, B34 Gold Star 8.5:1 Long stroke  Models only. 
Conrod number o/e 66-483 85mm std  JP including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou 

Norton ES2 Piston +040
complete
GPM/Gandini
STD. 79mm +040 (80.0mm)
gudgeon pin 22.25 mm
Make: Gandini Italy
Compression Height: 35.1mm

Piston Clearance 0.12mm or 45thou including gudgeon Pin, piston rings and circlips

Ariel 550cc Piston +030  87,15 mm
JP Piston including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou  

Triumph T20 Piston Std 9-1 C.P.172 E3958.E3959.E3960.E3961 E1750.E1767 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou

BSA GPM A65 Piston Pair STD 7.5-1
Compression High: 37mm
Gudgeon Pin DM: 19mm including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou Price per pair  

BSA A65 Piston +020 Pair
7.5:1
Gandini
Gudgeon Pin Diameter 19 mm - 3/4"
Compr. hight 37 mm Lightning

020 = 75.5 mm including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou Price per Pair

BSA A65 19233 Piston Pair STD. 75 mm 9:1 Compression including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou Price per Pair Please look at All pictures

BSA A7 Piston Pair +040 7.5-1 Compression Ratio   7,5:1 Compression height    approx. 41 mm Piston length approx.. 68 mm Gudgeon pin Ø  11/16” – approx.. 18 mm Gandini including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou Price per Pair Please view ALL Pictures

BSA Piston A65 Assembly +020
9:1 Made in Far East - good quality Piston rings are Hepolite Price per Pair including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou

BSA A50 500cc Piston Pair +020 1963-70 = 66 mm Compression ratio 9:1 Please see measurements in techn. data and last picture Complete incl. Gudgeon pin, piston rings and circlips Piston Clearance 0.12mm or 45thou price per pair

BSA B31 Piston Complete Std. 71 mm Diameter more measurements see last pict. including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou

BSA B31 Piston complete +080 STD = 71 mm +080 = 73 mm more meas. see last pict. including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou

Ariel 550cc Piston +040  87,15 mm
JP Pistonincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thou

BSA A65 19233 Piston Pair +060 19729:1 CompressionWeight 1 piston incl. Rings and Clips and gudgeon pin  470 gincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thouPrice per PairPlease look at ALL pictures