For 1957, BSA offered the following models:
Dandy 70cc
Dandy, Lucas Electrics 70cc
D1 Bantam 125cc, Direct Electrics
D1 Bantam 125cc, Battery Electrics
D1 Bantam Battery, Plunger GPO 125cc
D3 Bantam, Direct Electrics 150cc
D3 Bantam, Battery Electrics 150cc
C10L 250cc
C12 250cc
B31 350cc
B32 Competition Alloy Motor 350cc
B32GS Gold Star, Swinging Arm 350cc
A7 500cc
A7SS Shooting Star 500cc
B33 500cc
B34 Competition Alloy Motor 500cc
B34GS Gold Star, Swinging Arm 500cc
B34GS Gold Star New cylinder head 500cc
B34GS Gold Star Rigid USA 500cc
M20 500cc
M20, Plunger 500cc
M33 500cc
M33, Plunger 500cc
M21 600cc
M21, Plunger 600cc
A10 Golden Flash, Plunger 650cc
A10 Golden Flash, Swinging Arm 650cc
A10R Road Rocket, Swinging Arm 650cc
A10S 650cc Spitfire Scrambler