


Small in size — delivers big 3D power!
The 55HZ-H Hyper Ringed from O.S. has the power and reliability to make your heli do virtually whatever you want! Capable of installing in the same space as the 50SX-H Hyper, it features a brand-new, 3-needle 40L carb, a four-arm throttle lever for easy servo adjustments and more.
- Installs in the same space as the 50SX-Hyper
- A brand-new, 3-needle 40L carb
- New porting
- A four-arm throttle lever for easy servo adjustments
- Durable, corrosion-proof bearings
Product Specifications:
- Bore: 0.91 in (23 mm)
- Carb Type: O.S. 40L 3-needle rotary
- Crankshaft Threads: UNF1/4-28
- Crankshaft Type: Threaded
- Cylinders: Single
- Displacement: 0.55 cu in (8.93 cc)
- Power Type: Glow
- HP: 2.1PS, 2.07 HP @ 17,000rpm
- Product Height: 3.6 in (90.9 mm)
- Product Length: 3.0" (76.6mm) from backplate to front bearing
- Product Width: 2.0 in (52 mm) at mounting tabs
- Recommended Fuel: 10-30% nitro content, at least 18% lubricant content (heli blend)
- RPM Range: 2,000 - 17,000 rpm
- Stroke: 0.85 in (23.5 mm)
- Total Weight: 14.40 oz (408 g)