O.S. Engines

Carburetor Reducer 7mm, Red: Speed 21 V-Spec

T-1070SC L52 Pipe

TR02 Tuned Silencer Set EFRA2165

Inner Head: O.S.SPEED R21GT2

Crankcase: 21XZ-R VII

Cylinder & Piston Assembly: 12XZ

Carburetor Dust Covers: #12FB, 12XZ Speed

Piston Pin Retainer: RX RZ XM

Connecting Rod: R2102, Speed 21XZ-GT

O.S. Inner Head with O-Ring Speed B2103 Type R & S

Needle Holder #20E

Metering Needle Assembly: 21VG

Radial Mount: 72FS-a

Carburetor Rotor: #61B, 91HZ

Carburetor Rotor: 80T Sirius 7

Connecting Rod: 70SZ-H

Cover Plate: FS91-P

Cylinder Head: GT15HZ

Cylinder Liner: 50SX-H

Cylinder Liner: FT-300

Drive Washer: 25LA-S

Head Gasket: FT-160

Intake Pipe AS-R: FT-240

Mixture Control Valve: 46AXII