VSB Vespa GS 160
Frame VSB1T · 1962 · Large frame
Engine
TypeSingle cylinder, air cooled 2-stroke
InductionPiston ported
Bore × stroke58 mm × 60 mm
Displacement158.53 cc
Compression ratio7.3 : 1
Power8 bhp @ 6,500 rpm
Lubrication5% premix
Transmission
Type4 speed constant mesh
Primary drive22/67
1st gear14.72 : 1
2nd gear10.28 : 1
3rd gear7.61 : 1
4th gear5.84 : 1
ClutchWet, multiplate
Carburetor
CarburetorDell'Orto SI 27/23
Main jet108
Slow-running jet50
Main air bleed185
DiffuserE1 or BE2
Starter jet60
Ignition & Electrical
IgnitionContact breaker & coil
Timing26° BTDC
Breaker gap0.3–0.5 mm
Stator output6v - 35w
System6 volt
Wheels & Tires
Wheels10″
Wheel hubsCast w/cooling fins
Tires3.50 × 10
Tire pressure (front)16 psi
Tire pressure (rear, solo)20 psi
Tire pressure (rear, 2-up)32 psi
Performance
Top speed62 mph