BSA B50 Homepage
First page
Facts
Frame Codes
Ratio Page
Calculate speed B50
Calculate speed B25
Advanced gearbox calc.
Calculated TDC
Calculate Cam degree
Vernier pinion gears
Check timingmark
Cylinder Spacer
Useful Converters
Return Oil 1
Return Oil 2
Wet sumping
PES sump plate
Oil filter
Racing Mods
CCM Mods
Gear box spring
Oiltight Gear box
Gear box splines
Gearbox Blueprint
Carrillo Mod
Piston
Crankcase Breating
Crankshaft Lightning
Clutch problem
Clutch problem 2
Changing Clutch
6 Plate Clutch
Clutch center mod
Rocker arm Mod
Lost your cap?
Remove the RH case
Vibration
Electric
5/8-3/8 Chain
How to start a B50
Remove the engine from frame
High Tech
B50 Gaskets
Tools
Boyer problem

Drawings
Frame
Swing arm
Gear box
Amal Concentric
Amal MK II
Download area