130mmx70mm Prop and Spinner (2): UM 4-Site/Champ
In Stock
The Prop and Spinner 130 x 70 (2): UM 4-Site/Champ is a factory-direct replacement set designed to keep your ultra-micro RC plane performing at its best. Precision-molded to match original specifications, this propeller and spinner set restores efficient thrust and smooth throttle response to your favorite micro aircraft.
Keep spare parts handy in your flight kit with the authentic Prop and Spinner 130 x 70 (2): UM 4-Site/Champ set. Engineered specifically for ultra-micro scale aircraft like the HobbyZone Champ and E-flite UM 4-Site, these RC plane propellers feature a balanced 130mm x 70mm pitch profile that minimizes vibration while maximizing power efficiency. Perfect for quick field maintenance or restoring fresh performance after a minor tip-over.
Which aircraft are compatible with the Prop and Spinner 130 x 70 (2): UM 4-Site/Champ?
This set is compatible with ultra-micro RC planes such as the HobbyZone Champ and E-flite UM 4-Site, as well as other ultra-micro models using a standard 130x70mm press-fit propeller shaft.
Does the Prop and Spinner 130 x 70 (2): UM 4-Site/Champ come with multiple sets?
Yes, this package contains two propellers and two matching spinners so you have a spare ready in your field bag.
How do I install the Prop and Spinner 130 x 70 (2): UM 4-Site/Champ on my RC plane?
Gently press the spinner and propeller onto the motor gearbox output shaft until firmly seated, ensuring it spins freely without rubbing against the fuselage nose cone.







































