Engine: CHAISE - bore 85 mm, stroke 88 mm; 500cc four-stroke OHC; monoblock; Power 5 CV; 2 exhausts;
Lubrication: Automatic mechanical pump
Ignition: high-voltage magnet with variable advance
Carburetor: AMAC automatic with two levers
Transmission: 3 speed engine block
Transfers: Renold chain brand under cover
Frame: Special; doubled under the engine; very robust with loops for connecting the side-car
Forks: brand new; Type A parallelogram mounts
Wheels: 19"; balloon tyres 27 x 4.40; 194 mm diameter brake drums
Footrest: aluminium or rubber treads
Tank: fuel at about 12.5 gallons of gasoline and oil separate into 2 litres of oil to the pump for lubrication chain
Knee: rubber, very adaptable to the sides of the tank
Electrical equipment: Marchal dynamo with battery
Instrumentation: set in the tank; may include: odometer, speedometer, 8 day clock, switch box, ammeter
See also A10 and AL10, which also used the Chaise engine.
Source: Automoto A9
