O.S. Engines

Screw Set (10): 46AX 55AX

Cap Screw Set M2.6x7: 18TZ

Valve Spring: FS-70 91SII

OCA-240 40-Amp 25V ESC with OCP-2 Programming Card

Cover Plate: FS-120 III

Crankcase: 25LA Natural

Speed P4 Gold Super Hot Plug

Cylinder & Piston: B21 Speed Adam Drake

Carburetor Body: #60P, FS-91 Surpass II

Cylinder & Piston Assembly: 55AX

Carburetor Screw: #4D4C2H

O.S. Built-Up Parts Set Cyl Piston OS Speed R21GT

Crankcase: B2101 Speed

Motor Mount: 25LA

M2003SC 70mm Manifold, Top Speed, On-Road

Cylinder Brass Head Gasket: 75AX

Spinner Nut: 20-48

Cylinder & Piston: 25LA

Connecting Rod: 56 FS

Heat Sink Head: 30VG

O.S. Pistion Pin: .12XZ

Inner Head: 25XZ

Crankcase: 21XZ-R VII

Piston Ring: 70SZ-H