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BSA Hepworth  A65 19233.8mm Piston Pair 1972 9:1 Compression Original Hepworth including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou Price per pair Please look at ALL pictures  

BSA Piston +60 = 86,5 mm OHV 1947-52 86,5mm. 1947-1952.B33, B34, B34 Gold Star8.5:1 JPLong Rod Models only. Rod number o/e 66-48385mm stdincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thou

BSA Piston +40= 86 mm  OHV 1947-52 .B33, B34, B34 Gold Star8.5:1 JPLong Conrod mod. only. Rod number o/e 66-48385mm stdPlease look at all picturesincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thou 

BSA Piston +20  OHV 1947-52 85,50mm. 1947-1952.+020 = 85.5 mmB33, B34, B34 Gold Star8.5:1Long stroke  Models only. Conrod number o/e 66-48385mm std JPincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thou 

Norton Piston 19S Std  1955/8 596 cc STD = 82 mmGudgeon pin size 7/8"concaveComp. 1 11/32"Length: 2 7/8"

OHV
Model: 19R, 19S
C.R: 6.4 to 1


Piston Clearance 0.12mm or 45thouincluding gudgeon Pin, piston rings and circlipsPlease look at all pictures

Triumph T20s Tiger Cub. Piston 9:1 +020 63,5mm + 0,5mm piston clearance 0,12 mm or 45thou including gudgeon pin, circlips and piston rings

BSA Bantam D5/7 Piston STD Piston Clearance 0.12mm or 45thou complete with Piston Rings, Gudgeon Pin and Circlips 3-ring Made in England  

JAP Twin SV Piston Brough Superior/Zenith/Coventry Eagle STD.
JP
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

Triumph T20 Piston +060 7:1CR

STD= 63mm +060 = 64.5mm C.P.141 E3358.E656.E3048.E3387E1750.E1767 12581 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou

AJS/Matchless 650cc 2 Cylinder Piston Pair +060. = 73.5 mmwith Circlips, Piston Rings and Gudgeon Pin
AJS 649CC 31CS/31CSR 8.5-1CR 1958-60.
MATCHLESS 12 CSR 2 CYLINDER.
Bore tolarance 0.012mm = 0.0045".
Modle31. CSR.
G12. CSR.
JP Piston Made in Australia(2.197” compression height)price per pair

JAP Single Cylinder Piston STD.including gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thou500cc OHV
Model
KO
KOR
STD = 85.7 mm x 85 mm Bore and Stroke
Gudgeon Pin: 13/16=20,6mm
JP

JAP Single Cylinder Piston +020 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 +020
Gudgeon Pin: 13/16=20,6mm
Compression Height: 32.45mm
JP

JAP Single Cylinder Piston +040 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 +040
Gudgeon Pin D: 20.5mm
Compression Height: 32.45mm
JP

JAP Twin Piston STD. / Pairincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thou1000cc 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 +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

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 Twin Piston +060 / 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 +060
Gudgeon Pin: 13/16=20,6mm
Compression Height: 32.45mm
JP Price per Pair

Bsa A10 Liners and STD pistons
Price per Pair complete 8.25:1 70 mm
Italian made-Gandini
for Iron and Alloy Head from 1950-62
Piston Clearence 0.12mm or 45thou
Cylinder Liner BSA A10/Pair
ID 68.5 mm OD 80 mm L: 160 mm
These liners are to be used when the cylinder has a broken skirt.
at STD 70mm you have a 5 mm skirt
+80 = 72mm pistons 3mm

BSA GPM A65 Piston Pair +040 7.5-1
Compression High: 37mm
Gudgeon Pin DM: 19mmincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thouPrice per Pair

BSA GPM A65 Piston Pair +060 7.5-1
Compression High: 37mm
Kolbenbolzen DM: 19mmincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thouprice per pair

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

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

BSA B31 Piston Complete +02071 mm Diameter = STD+020 = 71.5 mmmore measurements see last pict.including gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thou

BSA B31 Piston Complete +04071 mm Diameter = STD+040 = 72 mmmore measurements see last pict.including gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thou 

BSA B31 Piston Complete +06071 mm = STD Diameter+060= 72.5 mmmore measurements see last pict.including gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thou