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BSA Clutch Plate Surflex A,B,C Mod., 6-spring clutch Rigid
Swinging Arm A Mod.  C10.C11.C11G Mod.
C10.C11.C11G.B31.B33.B32.B34.M33.
A10.A7.Gold Flash. Gold Star.Road Rocket.
Super Rocket. Rocket Gold Star.BSA M20 1949-1956
M21 1949-58
M33 1949-57

OD: 152mm
ID: 105mm

Also for dry use!Please look at all pictures

BSA Fork Bush Repair Set
f. telescopic forksA7, A10,B31. B32. B33. B34.
M20 1949-56 rigid & spring
M21 1949-58 rigid & spring
M33 1949-57 rigid & spring
A50. A65 -1968 included (Sept. 1968 changes to Fork bushes and seals)
BSA C11G 1954-57
29-5347. 65-5424. 29-5313. 65-5451. 65-5346.
Ariel 1954-58
H14-46
H17-49
H16-49
 

BSA Kneegrip Rubbers 1938-52
with Logo
i.e. BSA C10,C11, spring and rigid

M20,M21,M33-Rigid  B31,B32,B33,B34-Rigid

Price per Pair
Made in England Please look at all pictures
 

Clutch/Gearbox Sliding Plate BSA
Gearbox BSA B31, B33, B34, A7, A10, M20, M21

Bolt Art.No.: 66-7523
Nut Art.No.: 29-8814

BSA Oil Seal Set

66-1923*2 + 65-2316
BSA M20/ M21/ M33
B31/ B32/ B33/ B34. Gold Star. DBD34.

BSA Gearbox Outer Gasket.
BSA Gearbox Outer Gasket.  A10.A7. B31. B32. B33. B34. Gold Star. Swing arm only

BSA Clutch Cable
350/500 cc
B31/B32/B33/B34 1956-58

Inner: 137,5cm
Outer: 128cm

BSA Big End Bearing B31. B32. B33. B34. (not late Gold Star).  M33. M20. M21. M24. M22. M23. B24. B25. M19. WM20. WM21.  Single Cylinder
1937-59.
66-483. 1937-38
66-483. 1940-47
65-483. 1946-59
65-1614. 1954-57
65-1321. 1949-50 Gold Star
66-481. 1937-59
Made in EnglandSTD fitment - Alloy cage 

BSA Piston B33/M33 1954-60 std.
Made in Italy
STD=85 mm
middle gudgeon pin to Crown 48 mm
Gudgeon Pin 19mm
Piston Clearance 0.12mm or 45thou
for short rod
Compression Ratio: 7.25:1
65-1613 ConrodCmp Hight 43mm+5mm domewith Piston Rings, Circlips and Gudgeon Pin  

BSA Piston B33/M33 1954-60 +020 with piston rings, circlips and gudgeon pin
Made in Italy
+020=85.5 mm

Gudgeon Pin Diameter: 19mm
Middle Gudgeon Pin to TOP: 43.5 mm
Piston Clearance 0.12mm or 45thou
Compression Ratio: 7.25:1
65-1613 Conrod

BSA Piston B33/M33 1954-60 +40 =86 mm

middle gudgeon pin to Crown 48 mm
Gudgeon Pin Diam. 19 mm
Piston Clearance 0.12mm or 45thou
for short conrod
Compression Ratio 7.25:1
65-1613 Conrodwith Piston Rings, Circlips and Gudgeon PinGandini

BSA Piston B33/M33 1954-60 +060=
86.5 mm
Made in Italy
middle gudgeon pin to Crown 48 mm
Piston Clearance 0.12mm or 45thou
for short conrod
Compression Ratio: 7.5:1
65-1613 Conrod3/4 pinwith piston rings, circlips and gudgeon pin

Clutch Lock Washer
BSA C10-C11/B31B32.B33.B34.Gold star.A7.A10.Gold flash.Rocket.Road Rocket
f. 6 spring clutch OD: 50.8 mm-  2" ID: 30.9 - 35 mm Thickness approx. 1 mm

BSA Cam Pinion Spindle Bolt
Timingside
B&M Group

B31 B32 B33 B34 Gold Star
M20 M21 M33

Clutch Spring f. 6 Spring Clutch BSA B31.B32.B33.B34.A7.A10.Gold Star 1955-61
A Mod. Sept. 1954-1961
B Mod.1946-61
C Mod. after 1946 ONLY 6-spring clutch OD: 11.4 mm ID: 7,4 mm L: 23,7 mm

Kickstart Spring BSA.
B31. B32. B33. B34. Light Weight Gearbox. Empire Star. B20.B21. B22.B24. B25. B26.
Inside G/B. Spring. NOS

BSA B31/B33 M33 Valve Spring Bottom Seat

BSA Exhaust-Valve Guide B33/B34
G460
Inside diameter: 9.5mmPlease look at all pictures

BSA B31. B32. B33. B34. C10. C11. C12. M20. M21. M33. Oil Pump Gasket

BSA Exhaust Valve B33/M33V98 

BSA Inlet-Valve B33/M33 V29

Crankshaft Pinion Key BSA B31/B33

Clutch Spring Cup BSA B31/B33/A50/A65 Triumph 3TA/5TA/3HW
L. 26.6 mm
OD: 19.10 mm
4 Spring Clutch

Made in England

BSA Valve Spring Set VSP2
V.S.345
B31, B33 1946-60. .
Price per set.small springsID  20 mmOD  25.4 mmL 47 mmThread Diameter 2.5 mmBig SpringsID 31 mmOD  39 mmL 56 mmThread Diameter 4 mm Valve Springs

new, old stock, original BSA
A7,A10,B31,B32,B33,B34. Gold Star, 6 spring clutch

Slight surface rust, due to of storage.

No guarantee to the clutch bearing surface.