O.S. Engines

Thrust Plate: O.S. Speed B2104

Inner Head: B21 Ongaro Edition

Inner Head O.S.Speed B21 Adam Drake II

Crankshaft O.S. Speed T1204

Inner Head O-Ring O.S. T1204 (S30-FKM)

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

Carb Reducer 7.5mm, Blue

55HZ-R DRS Ringed .55 Helicopter Engine

Crankcase O.S. Speed T1204

Inner Head: T1204 with O-Ring

55HZ-H Hyper Ringed .55 Helicopter Engine

Built-Up Parts Set (C&P) O.S. Speed T1204

Cylinder/Piston/Rod Set: O.S. Max .12 TG Version 4

Pump Fixing Screw Assembly: 91SZ-H Hyper

Crankcase: O.S. Speed B2104

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

Carburetor Reducer 7.0MM AL2, Blue

O-Ring Small #2K IFN

Pushrod Cover Assembly: 200 Surpass

Pushrod Cover Assembly: FT-120-240

Piston: FS-95V

Piston Pin: 91RZ-H Ring Heli

Piston: GT33

Piston: GGT10