This is the O.S. Max Two-Stroke 1.20AX Ringed Engine without Muffler

FEATURES: 

• Model Application: Ideal for 3D, Precision and Sport flying
• Mounting Application: Mounts in same space as the .91FX (actual mounting dimensions vary slightly, see SPECS)
• Construction: Steel piston ring and liner, aluminum piston
• Carburetor: 70D with rearward angled needle valve for safety
• Glowplug: O.S. #8 supplied with engine, A5 (OSMG2693) will also work
• Warranty: Two-year limited

INCLUDES: 

• O.S. Max Two-Stroke 1.20AX Ringed Engine with #8 glow plug, 
• Prop washer and nut
• Needle valve extension set
• Instruction manual and decal set

REQUIRES:

• Fuel: Two-Stroke with 18% lubricant and 5-20% nitromethane
• Muffler: E-5020 "Power Box"
• Propeller: 15x10-12 or 16x8-10
• Field Equipment: Glow starter, fuel filter, fuel pump, fuel tubing

SPECS:

• Displacement: 1.218 cu in (19.96cc)
• Bore: 1.197" (30.4mm)
• Stroke: 1.083" (27.5mm)
• Crankshaft thread size: 5/16-24
• Practical RPM: 1,800 - 9,500 RPM
• Power Output: 3.1ps/9000 RPM
• Weight: 22.82oz  (647g) without muffler
• 7.074oz (219.2g) with 90° adapter installed
• 7.907oz (245g) with extension installed