O.S. Speed T1201 2.1cc nitro engine, 1A400
The stroke volume: 2.10cc
Output: 1.75ps / 35,000r.p.m.
Bore: 13.67mm
Stroke: 14.3mm
Practical r.p.m.Range: 5,000 ~45,000r.p.m.
Weight: 223g