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84mm

39930
+060

with Gudgeon Pin and Piston Rings (rusty)oilring brokengudgeon pin 7/8"Please look at all pictures

Royal Enfield
59.9mm

with Gudgeon Pin

Sunbeam 250cc
4288
1933-38
+040

11813
STD
1665-I

Piston used
69.5mm

AJS Piston used
540.P12
63.2mm
+020
D2E/2/2 250cc

with Gudgeon Pin, Piston Rings and Circlips

Burman Gearbox Housing AJS used
1 CP
M
11-12

for restoration - no warranty

10265
+060
55.2mm

with Gudgeon Pin and Piston Rings

1516
ASSO
68.4mm

no Gudgeon Pin
no Piston Rings

Ariel 350
1933-39
STD
4469
72mm
Gudgeon pin diam. 22 mm
Compr. hight: 73.5 mm

OHV
Model: NG, NH, Red Hunter
C.R: 6.2:1
STD=71.983mm

with Gudgeon Pin
no Piston Rings
new,old stock

Royal Enfield 350cc
+020

Royal Enfield 250cc
STD
64mm
Gudgeon Pin Diameter: 18.9mm
Compression Height: 22.15mm

no Gudgeon Pin
no Piston Rings

5942
+060
63.8mm

with Gudgeon Pin
no Piston Rings

4240
STD
55mm

with Gudgeon Pin and Piston Rings

NEW IMP
5942
+020
62.2mm

NEW IMP
5738
1933 250cc
+020
67mm

16950
40.5mm

with Gudgeon Pin and Piston Rings
 

JAP TYPE C
9855
+060
51.5mm

with Gudgeon Pin

NEW IMP
5770
+060
55mm

with Gudgeon Pin
with Piston Rings
no Circlips

NEW IMP
5773
62.203mm
+020

with Gudgeon Pin

NEW IMP
5738
67mm
+020

BSA Piston used 11288
+020
66.8mm

OHV
Model: A7
C.R: 7.25 to 1
STD = 66 mm

for restoration - no warranty

Royal Enfield Type
10265
54mm
STD

with Gudgeon Pin

NEW IMP
5942
62.2mm
+20

with Gudgeon Pin and Piston Rings

NEW IMP
3522
86.8 mm
040