Features :
- O.S. Engines 11670 .12XZ ABC 12F Slide OSMG1993
- Designed for 1/10 scale touring and off-road use
- Newly designed liner ports for increased torque at low to mid speed
- ABC construction, "A"luminum piston with "B"rass liner that is "C"hrome plated
- New crankshaft has improved counter balance shape and more efficient intake port
- Medium heat range RP6 turbo glow plug
- Two year limited warranty through manufacturer

Specifications :
- Displacement: 0.128 cu in (2.10cc)
- Bore: 0.543" (13.8mm)
- Stroke: 0.551" (14.0mm)
- Practical RPM: 5,000 - 40,000
- Power Output: 1.65ps/34,000 RPM
- Weight: 8.32oz (236g)
- Distance between mounting holes same side: 043" (11mm)
- Distance between mounting holes opposite side: 1.2" (32mm)
- Width below mounting flanges: 1" (25.4mm)
- Width including mounting flanges: 1.5" (39mm)
- Height bottom of crankcase to top of cylinder head: 3.5" (90.3mm)
- Height bottom of mounting flanges to top cylinder head: 3" (76.6mm)
- Length from front of crankcase to end of crankshaft: 1.2" (29.5mm)
- Length center line of piston to front of crankcase: 1.4" (34.9mm)
- Length center line of piston to end of crankshaft: 2.5" (64.4mm)
- Length from backplate to end of crankshaft: 3.1" (79.5mm)
- Crankshaft Threads: 1/4-28

Contents :
O.S. 12XZ ABC Engine with 12F Slide Valve Carburetor, RP6 glow plug exhaust gasket and instruction manual