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MSS
Viper
Venom
Clubman 350cc (MKI and MKII)
Scrambler 350cc
Clubman 500cc (MKI and MKII)
Scrambler 500cc
Thruxton
Endurance

Velocette Bolt
can be also used for Mudguard fitting
1/4" 26TPI x 5/8"UH
26TPI BSC/BSF
Spanner Size 3/16"WW

Made in England by Velocette Motorcycles

Selector Pawl Vincent

Made by Vincent - Vincent Motorcycles

Velocette Bolt 5/16" BSC 26TPI x 11/16"UH
small Head - Spanner Size 3/16"WW
thin Head - 5/32"

Made in England by Velocette Ltd.

MSS
Viper
Venom
Clubman 350cc (MKI and MKII)
Clubman 500cc (MKI and MKII)
Thruxton

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

Piston used

63mm

AJS/Matchless 250cc used
62.8mm

no Gudgeon Pin
no Piston Rings

P&M
250cc
1933-38
+40
61mm

P&M
250cc
1933-38
3990
+60
61.4mm

P&M
7447
STD
1936-38
87mm

with Gudgeon Pin

P&M
250cc
1933-38
3990
+60
61.5mm

with Gudgeon Pin and Piston Rings

P&M
248 cc 1933-47
OHV, 10,20,40,60,70, Redwing, Panther
CR 6:1
3990
+60
61.5mm

with Gudgeon Pin and Piston Rings

P&M
248 cc 1933-47
OHV, 10,20,40,60,70, Redwing, Panther
CR 6:1
3990
+40
61mm

with Gudgeon Pin
no Piston Rings

9890
+30
68.6mm (pair)

P&M
250cc
1933-39
3990
+40
61mm

P&M
250cc
1933-39
3990
+40
61mm

P&M
248 cc 1933-47
OHV, 10,20,40,60,70, Redwing, Panther
CR 6:1
3990
+40
61mm

with Gudgeon Pin and Piston Rings