Axial .28 Spec 1s racing engine has ABC cylinder and linerconstruction- "A"luminum piston, "B"rass cylinder liner that is "C"hrome plated. Composite bodied 9.0mm 3-needle Slide Valve Carburetor, factory reset line on High-Speed Needle and flush needles make resetting to factory specs easy, also includes 8.0 and 8.5mm venturis. SG (pilot) crankshaft with long duration intake. Seven-port cylinder sleeve. High volume transfer port design. Dual bushing aluminum connecting rod. Roto-starter backplate available optionally.

Glow Plug: Cold heat range
Fuel: 20-30% Nitro with at least 18% oil content
Manifold and Tuned Pipe: Depends on vehicle