FPVCycle 25mm Imperial Motor

  • Sale
  • $24.99
  • Regular price $25.99

This latest batch is a unibell design and has other significant durability improvements over the previous batches. It also has a very very clean new look. The new bell will fit the previous batch motors as well.

Looking for the NEON Yellow Hi-Viz 25mm Imperial Motors and Bells? (Click Here)


  • High performance: 1870kv with 6S 1100-1400mah and AUW below ~745g
  • Med-High performance: 1870kv with 5S 1550mah and AUW below ~745g
  • High performance: 2150kv with 5S 1200-1600mah and AUW below ~745g
  • Cruising: 1870kv or 2150kv with as little as 4S 1300mah or larger battery
  • Any of the above setups at a lower AUW is going to perform significantly better.

This Motor Pairs Well With:

This motor has been very carefully optimized for use with 4.8-5.2" props on full 5” quads but of course you're welcome to use them however you like.  The most notable performance benefits are improved low throttle management and easier altitude control compared to typical 5” motors.  Otherwise, it is a powerful motor that performs exceptionally well on any general ~5” platform.

These motors are designed to perform well with the increased load of a Hero camera (~710-740g AUW) but if the quad has an AUW below ~680g, the performance is exceptional.  It is recommended to run no less than 5S 1200mah or 6S 1050mah in order to optimize battery performance.  Under high speed/high stress flying, 5S 1250mah and 6S 1150mah minimum is recommended.  We recommend the highest C batteries available from any given company.

Your prop choice is entirely personal however the recent trend is to use lower load props that continue working well into the higher RPM range.  Our favorite props are the Gemfan F4S and Gemfan 5226. The 5226 is specifically designed to provide better hover efficiency and higher cruising speeds which is often what is required for filming action sports. You do give up a small bit of response to run the larger 5.25" prop that is the 5226. Running a prop larger than 5.1" also begins to dilute the improvement in low end throttle feel of the motor. The F4S prop is strongly encouraged to try.

We’ve been working on this motor for well over three years and spent a lot of time and money on development.  We won’t be disclosing the all the intricacies of the motor.  Compared to a typical 2306, this motor stator is ~20% larger by volume and has ~20% greater surface area.


    • ~35g with ~20mm wires
    • 7075 Aluminum alloy
    • 12N14P Configuration
    • M5 Prop Adapter Shaft Thread
    • 13.5mm Titanium Alloy hollow shaft (8mm thread)
    • Flanged prop nut (M5x6), no washer
    • Japanese NMB 9x4x4mm Bearing
    • N52H arc magnets with retention lip on bell
    • 0.15mm Nippon Steel silicon steel laminations
    • 20AWG wire, ~20cm length
    • 2.5mm thick mounting base, flush mount
    • 16X16mm M3 mount
    • M3x8 button head bell retention screw

    Customer Reviews

    Based on 102 reviews
    Too good

    Used to running budget motors on my 5 inchers. After the first flight with the 25 mm I realized I'm never going back. The added smoothness and authority is unbelievable.

    Tomasz Radomski


    Zachary Curtis (Newmarket, CA)
    Blowing motors suddenly.

    I have 2 identical 5 inch drones. The only difference is one has the old bell design, and the other one has the new unibell design. The motors on the old bell design run much cooler and I don't think I have blown 1 motor. With the new design I had to replace an esc and 3 motors( within 2 months) . These motors fly just as nice as the original but they run much much hotter. Currently trying to filter and tune out heat.

    Andrew Cascio (New York, US)
    Pleasantly surprised

    I was shoping for some motors for a 5s,5",X-frame,freestyle I was building,and I came across these.The deciding factor on purchasing these motors was due to the detailed analysis that was put in the description regarding them.

    I was very pleasantly surprised on my first flight after installation.After that,I did minimal tuning on top of the default Betaflight settings and droped the throttle curve a little on my transmitter to make better use and control of the low end.After the second flight,I was totally sold on these and ordered 2 more for spares.They sound great and have gobs of power!I liked them so much,I went back and continued the color scheme of the motors throughout the rest of the build.

    My only complaint was that the bells do not take a hit as well as some might anticipate and dent kind of easy...so buy gaurds or dont hit stuff.Maybe it was just my luck and I landed right on the bell after a failsafe...most likely.

    In short,I highly recommend these motors for your 5" build,and am certain they would fair well also on a 6".

    Stuart Dobson
    Motors live up to their reputation

    These motors are as described, fantastic low throttle control and still have power. I have been comparing many motors in my search for my ideal set up and when I had the opportunity to get these I couldn’t pass it up. They feel similar to the rcinpower smoox’s, with the key difference being response, the smooxs will spin up faster and have a snappier flight, whereas these feel like adding expo, slightly softer response with increased low throttle control, which I suspect is partly due to this softer response, the throttle response is exactly the same as pitch/ roll response so having that softer response makes level flight smoother.

    I had some desync issues however the drone never fell out the sky and they were resolved with ESC settings. I kept start up power at 0.4 and increased motor timing to 27 degrees at 24khz PWM.

    Overall, these really are fantastic and if you have a cinematic quad, cinematic flying style or flow style these are 100% the motors you should be using. If you do sbang or like Mr. Steele flippy floppy style then these are not for you, and the Smoox would be your alternative motor.