O.S. Engines

Throttle Arm Assembly WLA-2: GT55

Back Plate Assembly O.S. Speed B21 Adam Drake Edition 3

O.S. Cylindr & Piston Assy OS Speed R21GT

Idle Adj Valve STP #6H7L8H

Cylinder Liner: FS110A

Rocker Support: FS110A

Pump Unit PD-08: FS-200S-P

Needle Holder FT-120-300

Under Cover: IL-300 Dia-Star

Cover Plate Gasket: 75AX

Rear Bearing: 50SX-H, 55HZ, 55AX

Crankshaft: B21 Ongaro Edition

Crankshaft: 46AX

M11 Header Pipe Nut: FS070S and FS91S II

Front Housing: Sirius 7

Slide Valve #60U

Crankcase: O.S. Max .12 TG Version 4

Cylinder Head Gasket: 35AX

Needle Assembly: FT-120-300

O-Ring Metal Valve: 120Surpass

Pushrod Cover Assembly: 120Surpass

Drive Shaft Bearing: Sirius 7

Speed Exhaust Seal Ring (10): B21

Gasket Set: 25XZ