ALL THE POWER AND QUALITY ONE EXPECTS FROM O.S. ENGINES.

Specifications:

Displacment: 2.1cc (0.128 cu.in.)
Bore: 13.8mm (0.543 in.)
Stroke: 14.0mm (0.551 in.)
Practical R.P.M.: 5,000-44,000 r.p.m
Power Output: 1.75 ps / 35,000 r.p.m
Weight: 220g (7.76 oz.)