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Features
These are the engines that precision aerobatic and 3D heli pilots have been waiting for! In order for 90-sized machines to nail huge maneuvers and hardcore, smackdown-style 3D it's all about power, and both the 105HZ and 105HZ-R have it in abundance. Displacement has been increased by 15%, while a huge venturi rams air into the carburetor, producing massive power. Plus, they fit in a .90-sized mounting pattern.
Displacement 1.048 cu in (17.17 cc)
Bore 1.442 in (29 mm)
Stroke 1.024 in (26 mm)
Practical rpm 2,000-16,500
Output 3.75 hp @ 15,000 rpm
Weight 21.03 oz (596 g)