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Gearbox Sprocket 21 T.
BSA A7 A10
late B31 B32 B33 B34
Gold Star -1965
Chain 110-056-...
Chain 530
5/8" x 3/8"

Made in England

BSA Mainstand used

for restoration - no warranty

BSA A75 Gearbox Outer Gasket

Gearbox Sprocket BSA A65 22 T.
1962-72
Chain 110-056-...
Chain 530
5/8" x 3/8"

Made in England

BSA/Triumph Brake Plate with Shoes 1971-74
used

for restoration - no warranty

Piston BSA C15 STD.
GPM

STD= 67mm
Piston Clearance 0.12mm or 45thou
Compression Height: 36.3mm
Compression 7.5:1 with Piston Rings, Circlips and Gudgeon Pin Please look at all pictures

Piston BSA C15 +040

STD=67mm +040= 68mm
Piston Clearance 0.12mm or 45thou
Compression 7.5:1
with piston rings, circlips and gudgeon pin

Piston BSA C15 +060

STD= 67mm +060= 68.5mm
Piston Clearance 0.12mm or 45thou
Compression ratio: 7.5:1 with Piston Rings, Gudgeon Pin and Circlips

Cover Screw BSA 1/4. WW. 1 1/2" UH.

BSA PPiston used
68/907

for restoration - no warranty

BSA Piston used
40-259
+030
66.85mm

no Gudgeon Pin
no Piston Rings

for restoration .- no warranty

17293
62.8mm

no Gudgeon Pin
no Piston Rings

BSA Piston used
3729
65/1693
84.65mm

with Piston Rings
no Gudgeon Pin

for restoration - no warranty

Piston 350cc May be early BSA
Used/nos
71mm

BSA Piston used
Heplex
3320
79.9mm

no Piston Rings
no Gudgeon Pin

for restoration - no warranty

18529. Bsa A10 racing
+060
71.5mm

BSA Piston used
90-1461
+30
61.5mm

for restoration - no warranty

Piston. Bsa. 65-405 29351 62.9mm

BSA A50/A65 Brake Cable 1962-66 - if cable operated

Inner: 57cm
Outer: 34,5cm OD Thread: 6.5 mm - 1/4"  x 26 TPI

BSA Valve Spring Set C11 C12 C11G

Outer Springs
OD: 33,3 mm
ID: 25,3
L: 49 mm
Thread Diam.: 4 mm

Small Springs:
OD: 21.6 mm
ID: 16. 5 mm
L: 37.4 mm
Thread Diameter: 2.5 mm

BSA
250cc
7131
+060
63mm

OHV
Model: B22, Empire Star
C.R: 6 to 1
STD = 63 mm

with Gudgeon Pin
no Piston Rings
new, old stock

BSA
7149
63mm
+030
250cc

OHV
Model: B21, Sports
STD = 63 mm

64mm
Compression High: 26mm
Gudgeopn PIn DM: 16mm

BSA
7149
1854
63mm
+020
250 sport
1917

OHV
Model: B21, Sports
STD = 63 mm
new, old stock

BSA
10877
STD
76.199MM

with Gudgeon Pin and Piston Rings
new, old stock

BSA Piston used
40 63
+030

no piston rings
no gudgeon pin

Dm: 67 mm
Total hight: 68,9 mm
Gudgeon Pin diam: 17,3 mm

for restoration - no warranty