OS Engines

Needle Valve Holder Assembly: 91SZ-H Hyper

Pushrod Cover Set: Sirius 7

Piston Ring: FS-70 SII

Rocker Arm Support Assembly: FS-20

Cover Plate Screws (10): 120AX

Standoff 5x25.4mm 1" (4): GT55

Crankcase: 46AXII

M11 Header Pipe Nut: FS070S and FS91S II

Idle Adj Valve; FS-90/120

Throttle Link Assembly: 21XM

Prop Washer: 40-61

Rocker Support: FS110A

Carburetor 61H: GT15

Exhaust Header Pipe Assembly: F6020 FS155A-P

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

Piston Pin Retainer: RX RZ XM

Inner Head: O.S.SPEED R21GT2

Carburetor Reducer 6mm, Red: B2101 Speed

Speed Exhaust Seal Ring (10): B21

T-1070SC L52 Pipe Set

Rear Bearing: 19XZ-B Speed

Carburetor Body: 21M

Speed Hex Wrench Ball Driver 2.0mm

Crankcase: 21XZ-R VII