even if you compare it to the base model (blue head) xz-b, it doesnt stack up, .05 less peak power and 8 grams heavier.
SPECIFICATIONS
Stock Number: OSMG2050
Displacement: 0.21 cu in (3.5 cc)
Bore: 0.6 in (16.3 mm)
Stroke: 0.7 in (16.8 mm)
Practical rpm: 4,000-40,000
Output: 2.51 hp @ 33,000 rpm
Weight: 12.52 oz (362 g)
(base xz-b specs)