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AJS/Matchless Piston NOS 1956-58 498ccm +60 = 67,5 mm13267
+60 = 67,5 mm
STD=66mm
OHV
Model: 20
C.R. 7.8 to 1Please look at all pictures

Norton Piston used
Heplex
10297
3236
STD = 79 mm
+30
79.7mm

Heplex
9141
Ariel
STD
71.9mm

with Gudgeon Pin and Piston Rings

no warranty - for restorationPlease look at all pictures

Piston used

70.1mm

Excelsior 148cc.
Heplex
11291
+15
55.4mm

Ajs, Matchless Piston

W.139
AD 66mm

new,old stock Please look at all pictures

Mowog
M1900
63mm
Measurements see pict.

with Gudgeon Pin and Piston Rings

BSA Piston used
H&G
1685
STD
59.9mm

with piston rings
no gudgeon pin

for restoration - no warranty

Piston used Bsa
BSA 68/909 75.3mm

for restoration - no warranty

Triumph T120.Piston NOS.
Hepolite
17797
70 9488
+40
71.5 mm
Gudgeon Pin diameter: 17 mm
Compr. hight: 25 mm


no Piston Rings
with Gudgeon Pin

for restoration - no warranty

Piston NOS

55.7mm

BSA Piston.  STD. 1935-1935. 350cc. R35-4. R36-17. NOS.
Heplex
5651
STD
71mm

with Gudgeon Pin and Piston Rings

for restoration - no warranty Please view all pictures

Piston used
Bsa. 67/ 1433. 66.35mm

for restoration - no warranty

Hepolite
Triumph T120
70 9488
17797
71mm

no gudgeon pin,
no piston rings

for restoration - no warranty

JAP. 98cc. NOS
Hepolite
9858
+60
14611
65.8mm

with Gudgeon Pin
1 Piston Ring missing

Triumph T110 Pat No. 616820
13529
STD
71mm
no pistonrings
with gudgeon pin
new, old stock

Heplex NOS
5338
+60
64.4mm

1935/6 250 ccm OHV Model: De Luxe, 35/3, B2, B18
1934/6 500 cc OHV Model: Twin, J34/11, J35/12, J36/12
C.R: 7.25 to 1
STD = 63 mm

for restoration - no warranty

BSA A50. 15934. NOS.
7709
+30
66.25mm

with Gudgeon Pin and Piston Rings Please view all pictures

BSA Piston used
66.4mm

with Gudgeon Pin
no Piston Rings

for restoration - no warranty

Piston NOS
Hepolite
Triumph
70-9488
17797
71mm

with Gudgeon Pin

for restoration - no warranty

Hepolite
18140
71/131
63mm

BSA Piston NOS
7610
+60
64.6mm

with Gudgeon Pin

for restoration - no warranty

BSA Piston NOS
51.25mm
17295
STD

with Gudgeon Pin and Piston Rings

for restoration - no warranty Please view all pictures

Heplex
4638
14005
STD
59.7mm

with rusty Gudgeon Pin

AJS Piston used
Hepolite
AJS
3185
83mm
STD=82.5mm
SV Model 4, 9, 14
OHV Model 8, 9, 18, 18T, 8SS, 18SS
C.R. 5 to 1

no Gudgeon Pin
no Piston Rings