Du-Bro Spinner, 4 Pin, 2-1/4", Black (DUB279)
$9.85
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Du-Bro Spinner, 4 Pin, 2-1/4", Black (DUB279)
$9.85
Nylon Lock System
Secure vibration free fit
Five Shaft Adapters
Fits multiple engine shafts
Virgin Nylon Construction
High strength durable material
Lightweight Performance
Weighs only 34 grams
No Drilling Needed
Ready to install setup
Made In USA
Trusted American hobby quality
Precision Propeller StreamliningClean Aerodynamics for Your Aircraft
Upgrade your front end with the DU-BRO 4 Pin Spinner, 2-1/4" Black, engineered to deliver smooth aerodynamic performance and maximum flight safety. Designed specifically for RC airplane enthusiasts, this 2-blade spinner streamlines airflow across your propeller setup while shielding critical mounting hardware. Simple to install right out of the package, it provides a clean, professional finish for both electric and glow-powered model aircraft.
Engineered Safety and StabilityVibration Free Fit for Flight Confidence
The DU-BRO 4 Pin Spinner, 2-1/4" Black is crafted from durable 100% virgin nylon to withstand intense high-RPM operation without adding excessive nose weight. Featuring DU-BRO's signature nylon insert lock system, this RC prop spinner securely fastens the spinner cone to the backplate, virtually eliminating unwanted vibrations and preventing hardware spin-offs during operation. Supplied with five interchangeable shaft adapters (5mm, 6mm, 1/4", 7mm, and 5/16"), it adapts easily to various brushless motor shafts and glow engine crankshafts without requiring drilling or permanent modification. Whether equipping sport trainers, aerobatic models, or scale aircraft, this 34-gram spinner offers reliable performance, ultimate safety, and trusted American-made craftsmanship.
Technical SpecificationsDetailed Dimensions and Adapter Compatibility
Compatible Vehicles
Sport, Trainer, and Scale RC Airplanes
Part Type
2-Blade Propeller Spinner
Material
100% Virgin Nylon
Placement/Position
Front Engine/Motor Shaft
Dimensions
2-1/4 in (57.15 mm) Diameter (ruler)
Weight
34 g (1.2 oz) (scale)
Included Adapters
5mm, 6mm, 1/4 in, 7mm, 5/16 in
Key Accessory FeaturesDesigned for Security and Easy Installation
Package QuantityIncludes 1 complete spinner assembly
Locking MechanismUnique nylon insert lock design
Shaft CompatibilityComes with 5 adapter rings for multi-engine fitment
Easy InstallationReady to install right out of the package without drilling
Material QualityMolded from high-impact 100% virgin nylon
Safety FocusedEngine-safe design prevents dangerous cone throw-off
Manufacturing OriginProudly made in the USA
Frequently Asked QuestionsEverything you need to know
What shaft sizes are compatible with the DU-BRO 4 Pin Spinner, 2-1/4" Black?
The DU-BRO 4 Pin Spinner, 2-1/4" Black includes five shaft adapter rings (5mm, 6mm, 1/4", 7mm, and 5/16") to fit a wide selection of electric motor shafts and glow engine crankshafts without modification.
Is the DU-BRO 4 Pin Spinner, 2-1/4" Black suitable for electric and glow RC planes?
Yes, this 2-blade spinner is versatile and engineered for both electric brushless motors and nitro/glow engines, providing high stability across all RPM ranges.
How does the locking mechanism on the DU-BRO 4 Pin Spinner, 2-1/4" Black work?
It utilizes DU-BRO's custom nylon insert lock system, which firmly fastens the spinner cone to the backplate to prevent loosening, reduce vibration, and enhance overall pilot safety.
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