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Made of high quality aluminum bar stock. Light weight design. Fits all standard blades with 8 mm hub and 3mm hole. Adjust pitch to trim your power setup wattage and flight performance to exactly what your airframe needs. Adjustment range varies with each blade/spinner combination. Typically, with a 12x6 blade set, the pitch could be set between 12x3 and 12x9. 4mm collet included, other sizes available below. Weight 1.45 oz. SKU Number: MPIPU40
Made of high quality aluminum bar stock. Light weight design. Fits all standard blades with 8 mm hub and 3mm hole. Adjust pitch to trim your power setup wattage and flight performance to exactly what your airframe needs. Adjustment range varies with each blade/spinner combination. Typically, with a 12x6 blade set, the pitch could be set between 12x3 and 12x9. 4mm collet included, other sizes available below. Weight 1.69 oz.
Made of high quality aluminum bar stock. Light weight design. Fits all standard blades with 8 mm hub and 3mm hole. Adjust pitch to trim your power setup wattage and flight performance to exactly what your airframe needs. Adjustment range varies with each blade/spinner combination. Typically, with a 12x6 blade set, the pitch could be set between 12x3 and 12x9. 4mm collet included, other sizes available below. Weight 1.9 oz.
Use to change MPI Adjustable Pitch Folding hub to fit different motor shaft size.
SKU Number: MPIPUC6
Folding Prop Spinner Hubs and Collets
Folding propellers reduce drag on electric models by laying the blades back when the motor is not driving them, and this category collects folding prop hubs and the collets that adapt them to different motor shafts. Choosing the right hub and collet combination is what lets a folding prop bolt onto your particular power system.
Adjustable Pitch Folding Hubs
The MPI adjustable pitch folding prop hubs are offered in 40mm, 45mm, and 50mm sizes, giving a choice of yoke spacing to suit different blade lengths and models. The adjustable design allows the blade angle to be set within the hub.
Matching Collets
Collets for the MPI hub are available in 1/8 inch, 4mm, and 5mm bores so the assembly can be fitted to a range of motor shaft diameters. Selecting the collet that matches your shaft helps the prop run true.
Browse the hubs and collets below to build up a folding prop for your motor.
 "MPI Adjustable Pitch Folding propr Hub 40mm")
 "MPI Adjustable Pitch Folding propr Hub 45mm")
 "MPI Adjustable Pitch Folding propr Hub 50mm")