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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

AJS/Matchless Piston 350cc STD.
for Alloy Cylinder Head gudgeon pin = 22 mm  7/8"
7,5:1
D: 69mm total hight 85 mm including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou 347 cc OHV 16M  1948-55 347 cc OHV 16MS 1956-58 JP Measurement see pict.

AJS/Matchless Piston 350cc +080
Alloy Head 1948-55 G3L gudgeon pin 22 mm - 7/8"

Compression 6.3:1
Std: 69mmincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thoucomplete incl. Rings
f. G3LS
JPtotal hight 82 mmplease look at all pictures

AJS/Matchless Piston 350cc STD.
Alloy Head 1948-55 G3L gudgeon pin 22 mm - 7/8"

Compression 6.3:1
Std: 69mmincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thoucomplete incl. Rings

JPtotal hight 82 mmplease look at all pictures

AJS/Matchless Piston +040. 500ccm = 83,55 mmAJS 18S. Matchless G80SC.R. 7.3:1 Gudgeon Pin: 7/8" - 22mmincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thouPlease look at all pictures
Piston Clearance 0.12mm or 45thou

AJS/Matchless Piston 0,20  500ccm = 83,05 mmAJS 18S. Matchless G80SC.R. 7.3:1 Gudgeon Pin: 7/8" - 22mmincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thouPlease look at all pictures

AJS/Matchless Piston +060 500cc
84.05 mm

AJS 18S. Matchless G80SC.R. 7.3:1 Gudgeon Pin: 7/8" - 22mmincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thouPlease look at all pictures

Ariel 550cc Piston STD = 86.4 mm bore
JP Piston including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou  

Ariel 550cc Piston +020
JP Piston   including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou  

BSA Sloper Silencers 1 3/4"-Inside Diameter  = approx. 44.5 mm
chromed
Made in England
Price per Pair

BSA Sloper Exhaust Pipes 500 cc
OHV
09/1929-1935
Price per Pair
Made in England
chromed
Front 42 mm - 1.11/16"
rear 44 mm - 1.3/4"

BSA Sloper 600 cc SV.OHV Primary Chaincase/Pair 1933-35
 

BSA Sloper Back Stay 1929
4.93, 5.57, 4.93 Deluxe Measurements in last picture Pipe diameter 22 mm

BSA Sloper Exhaust Pipes
600 cc
O.H.V.
chromed
OD: 42mm - 1 5/8"

Made in England
Price per Pair

BSA Sloper 1927-29 Chainguard measurements - see picture

BSA B31/B32 Gasket Set 1945-48Early type gearboxMade in England

Velocette Hub Dust Cover

Made by Velocette