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Hand Oil Pump Spring Brough Superior length: 26,5cm

Ariel Piston Std.
Bore: 61mm

OHV
Model: Red Hunter, LG, LH, De luxe, OG, OH
C.R: 7 to 1
STD=61mm
new, old stock

Ariel Piston +030
Bore: 61mm +030 (=61.7mm)

OHV
Model: Red Hunter, LG, LH, De luxe, OG, OH
C.R: 7 to 1
STD=61mm
Rusty pin. 2 broken ring
new, old stock. nos.

Ariel Piston +060
Bore: 61mm +060 (=62.5mm)

OHV
Model: Red Hunter, LG, LH, De luxe, OG, OH
C.R: 7 to 1
STD=61mm

new, old stock

Norton Piston 16H 500cc SV-Models +020
1931-58
Bore: 79mm +020
(=79.5mm)
Gudgeon Pin Diameter: 22 mm
Compr. Hight: 33 mm

with one Oilring
no Gudgeon Pin
no Circlips

Norton Piston 16H 500cc SV-Models +020
1931-58
Bore: 79mm +020
(=79.5mm)
Gudgeon Pin Diameter: 22 mm
Compr. Hight: 33 mm

no piston rings, gudgeon pin, circlips

Bellmouth long Amal 3GP
Thread Diameter: 46mm - 38mm = 1 1/2"
Lenght: 73 mm

Norton Piston 16H 500cc SV-Models +020
1931-58
Bore: 79mm +020
(=79.5mm)
Gudgeon Pin Diameter: 22 mm
Compr. Hight: 33 mm

no piston rings
no gudgeon pin
no circlips

Norton Piston 16H 500cc SV-Models +020
1931-58
Bore: 79mm +020
(=79.5mm)
Gudgeon Pin Diameter: 22 mm
Compr. Hight: 33 mm

with piston rings and gudgeon pin
without circlips

Norton Piston 16H 500cc SV-Models +020
1931-58
Bore: 79mm +020
(=79.5mm)
Gudgeon Pin Diameter: 22 mm
Compr. Hight: 33 mm

no piston rings, gudgeon pin, circlips

Norton Piston 16H 500cc SV-Models +020
1931-58
Bore: 79mm +020
(=79.5mm)
Gudgeon Pin Diameter: 22 mm
Compr. Hight: 33 mm

with Circlips
no gudgeon pin
no piston rings

Norton Piston 16H 500cc SV-Models +020
1931-58
Bore: 79mm +020
(=79.5mm)
Gudgeon Pin Diameter: 22 mm
Compr. Hight: 33 mm

with gudgeon pin
no piston rings
no circlips

Norton Piston 16H 500cc SV-Models +020
1931-58
Bore: 79mm +020
(=79.5mm)
Gudgeon Pin Diameter: 22 mm
Compr. Hight: 33 mm

no piston rings, gudgeon pin, circlips

Norton Piston 16H 500cc SV-Models +040
1931-58
Bore: 79mm +040
(=80mm)
Gudgeon Pin Diameter: 22 mm
Compr. Hight: 33 mm

with gudgeon pin
no piston rings
no circlips

Norton Piston 16H 500cc SV-Models +040
1931-58
Bore: 79mm +040
(=80mm)
used

Pin Diameter: 22 mm 7/8"
Compr.- hight: 33 mm

with gudgeon pin
no piston rings
no circlips

Norton Sticker for Side Cover Commando 750cc
Silver, Vinyl Commando 750cc
165mm x 32mm
 

10TT & 10GP
Bellmouth medium Amal
fits with Lockring 175/119
Thread Diameter: 32.2mm -.38 mm = 1 1/2"
Lenght: 54 mm

Made in England

BSA Clutch Centre A10 4 Spring-5 Plates

Triumph 5 Plates Clutch Center

Made in England

Oil Release Valve Spring and Ball Kit BSA A7/A10Spring 17mm long. 0.67"Wide 6.12mm = 0.247" 1/4"Thread  0.30mm   0.012"

BSA Piston M20 Std.Nos.
no piston rings
with gudgeon pin
with circlips
82mm
Piston Clearance 0.12mm or 45thou Please view all pictures

BSA/Triumph Front Brake Lever

Top Ring
3338 10TT

Made in England measurement last picture
 

Royal Enfield Piston 150cc.
1953-59 +015
56mm +015

Royal Enfield Piston 150cc
1953-59 Std.
56mm

Royal Enfield Piston 150cc
1953-59 +020
56mm +020 (=56.5mm)