O.S. Engines

Valve Spring: FS155A-P

Valve Spring: F90 160

Woodruff Key: 61S RFH

Crankshaft: B21 Ongaro Edition

Crankshaft: 12XZ Speed

O.S. Crankshaft OS Speed R21GT

O.S. Cylinder And Piston Speed: T1203

Outer Head: B21 Speed Adam Drake

Outer Head: B21 Ongaro Edition

202 Super Air Cleaner

Carburetor Reducer 7mm, Yellow: 21XZ-B

Outter Head: O.S.SPEED R21GT2

Inner Head: T1202 Speed

Needle Assembly #10E

O-Ring Small #2K IFN

Metering Needle Assembly 18TM

Screw Set (8): 15CV-A

Thermo Insulator 21J3

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

Carburetor Reducer, 6.5mm: OS Speed B21 Pink Rhonda Drake Edition

Carburetor Body: #21C

Carburetor Reducer 8mm, Red: Speed 21 V-Spec

Carburetor Reducer 8mm, Blue

RP8 Turbo Glow Plug, On-Road, Cold