Search

AJS/Matchless JP Pistons 500cc Twin
-1955 +060

Bore: 66mm +060(=67.5mm) including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou
JP
Compression Ratio  7:1
Price per Pair

AJS/Matchless JP Pistons 500cc Twin
-1955 Std.

Bore: 66mm including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou
JP
Compression: 7:1
Price per Pair

Bsa Sloper Piston. 500cc. 1925-31 +060 81.5 mm

Measurements see last pict. gudgeon pin 16 mm

S25,S26,S27,S28,S29,S30-
9,S31-7 493cc ,SV 1925-31 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou

Bsa Sloper Piston. 500cc. 1925-31 +040=DM 81 mm
Measurements see last pict. - please look at all pictures gudgeon pin 15,87 mm  5/8"

S25,S26,S27,S28,S29,S30- 9,S31-7 493cc ,SV 1925-31 Piston Clearance 0.12mm or 45thou

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

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 Piston +060 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou 500cc 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

Norton Dominator Piston Pair +040 500cc
bore 67,00mm

Gudgeon Pin diameter: 17.5 mm
Middle Gudgeon Pin-Top approx. 40 mm Gandini including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou Price per pair

Norton Commando Pistons + 060 Pair  850cc with Hepolite Piston Rings including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou price per pair

Piston assembly 750 Norton +040
L/H & R/H
Price per Pair
Diameter: 74mm

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

Norton Dominator Piston Pair +060 500cc
Bore 67.5mm

Gudgeon Pin diameter: 17.5 mm
Middle Gudgeon Pin-Top approx. 40 mm

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

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 A7 Piston Pair +060, 1950 -61
2 Cylinder, 500cc, O.H.V.
Compression Ratio 6.6:1 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou Price per Pair  

BSA A7 Piston Pair +040, 1950 -61
JP Pistons
2 Cylinder, 500cc, O.H.V.
Compression Ratio 6.6:1 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou Price per Pair

BSA B31 Piston Complete +030   71 mm Diameter = STD +030 = 71.75 mm more measurements see last pict. including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou

BSA B31 Piston Complete +020 71 mm Diameter = STD +020 = 71.5 mm more measurements see last pict. including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou

Norton Dominator Piston/Pair GPM 600/650cc +060= 69.5mm
middle gudgeon pin-top: 40 mm
Gudgeon pin diameter: 17. 5 mm - 11/16"


at 600 ccm: 7,4:1 compression ratio at 650 ccm 8,25:1
Mod. 77 v- 1956-58
Mod. 99 1956-62
Nomad 1968
650 1960-63
Mod. 99SS 1961-62
650 SS 1961-70
Piston Clearance 0.12mm or 45thouincluding gudgeon Pin, piston rings and circlipsPrice per pairPlease look at all pictures 

Pistons 750 Norton +020
L/H & R/H
Price per Pair
Diameter: 73.5mm

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

AJS/Matchless Piston 350cc +030
f. Alloy Cylinder Head
7,5:1
D: 69.75mm
f.e.: 16MS 1952
JP 347 cc OHV 16M  1948-55 347 cc OHV 16MS 1956-58 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou

Triumph Thunderbird Pistons +60 /Pair

STD= 71mm +060" = 72.5 mm
Gudgeon Pin. 17.4mm
Compression Height: 33.3mm
for Cast Iron Head - please do not fit to alloy head

complete with gudgeon pin, piston rings and circlips

Piston Clearance 0.12mm or 45thou measuremetns see techn. data Price per Pair

BSA A10 Piston. Pair 1950 - 63.  also Ariel FH Fieldmaster 1952- Piston 9:1 Compression
Please look at all pictures including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou price per pair

BSA A10 Piston. Pair 1950 - 63.  also Ariel FH Fieldmaster 1952- Piston 9:1 Compression
Please look at all pictures including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou price per pair

Thunderbird 6T 7:1
Triumph, Pistons Pre Unit
71mm +40=72mm
Gudgeon Pin: 17.4mm
650cc

for Cast Iron Head - please do not fit to alloy head
complete with gudgeon pin, piston rings and circlips

Piston Clearance 0.12mm or 45thou Measuremetns see techn. data Price per Pair

Norton ES2 Piston +020
complete
GPM/Gandini
STD. 79.0mm +020 (79.5mm)
gudgeon pin 22 mm
Compression Height: 35.1mm

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

AJS/Matchless Piston 350cc +060 = 70.5 mm Gudgeon Pin: 22 mm - 7/8" f. Alloy cylinder head 1949-1962 Iron cyl head 1948-1950 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou Total Height: 85 mm
Middle gudgeon pin to top: 53 mm
Middle gudgeon pin to 1st ring 26 mm
Middlge gudgeon pin to top, before it domes: 42 mm
Diameter: 70.5mm
f.e.: 16MS 1952
JP