The O.S. engineers have taken superior Speed Spec performance to the next level! In addition to smoother acceleration from idle to full throttle, the 12XZ Speed Spec III also has increased low-to mid-range torque. Don’t worry: the impressive top end speed remains the same!
Bore: 0.543 in (13.8 mm)
Stroke: 0.55 in (14.0 mm)
Practical RPM range: 5,000-44,000
Output: 1.73 hp @ 35,000 rpm
Weight: 7.9 oz (225 g)
Includes: 12F2(B) carburetor, RP6 glow plug, exhaust seal ring, dust cap set, 5.5 mm red carb reducer
Stroke: 0.55 in (14.0 mm)
Practical RPM range: 5,000-44,000
Output: 1.73 hp @ 35,000 rpm
Weight: 7.9 oz (225 g)
Includes: 12F2(B) carburetor, RP6 glow plug, exhaust seal ring, dust cap set, 5.5 mm red carb reducer