This website requires cookies to provide all of its features. By using our website, you agree to our use of cookies - Learn more - Hide this message

X55 Extended Aluminium Arm - BLACK - For DJI F450 / DJI F550

In stock
  • Buy 4 for £18.04 each and save 5%
  • Buy 6 for £17.57 each and save 7%
  • Buy 8 for £17.09 each and save 10%
The Aeroxcraft X55 Extended Aluminium Arms allow you to fit larger propellers to your DJI F450/F550 multirotor. Made from aircraft grade 6082-T6 Aluminium, the X50 and X55 arms are lighter, tougher, stiffer and more durable than stock plastic arms. The lightness and stiffness combine to make your multirotor more responsive. What's more, the X50 and X55 arms act as heatsinks to cool down your motors and ESC, dramatically reducing the heat stress and making your F450/F550 safer to operate. They are tough too. The X50 and X55 arms are safety rated at 9 kilograms, much more than you will ever need. The X55 arm is 50mm longer than the stock DJI arms and the same height of 37mm.


  • Designed and manufactured in the UK exclusively by Aeroxcraft.
  • Maximum prop size 12 inches (305mm).
  • Weight: 60g (2.1oz).
  • Same height as stock arms at 37mm.
  • Compatible with DJI M2.5 shoulder screws.
  • Suits motors with hole patterns sizes 16mm to 25mm.
  • Manufactured from aircraft grade 6082-T6 Aluminum.
  • Designed to withstand 9kg (19.8 lbs) load.
  • The design has been metal fatigue tested to 250,000 cycles of 9kg (19.8 lbs).
  • Arm acts as a heat sink for the motor and ESC.
  • Many times stiffer than stock plastic arms.
  • Supplied in clear plastic retail packaging.
  • 4 anodised colours available – Black, Blue, Red and Silver.
  • Pack Includes:

  • 1 x X55 Arm
  • 2 x Velcro ESC straps

  • Reviews:


    I got 4 of these extended arms along with 4 of the X5C coaxial Motor Mounts to make X8 based on a HoverBot 7 Frame.

    As a machinist myself, I can see the thought that has gone into the design and the attention to detail.

    The arms are very well machined and finished along with a quality anodising, the same is true on the X5C mounts.

    Looking at them, I have no idea how how he could make them for the cost, as I know I could not!

    The 2 parts are connected with 4 2,5mm countersunk socket head screws, and when in place line up with no mismatch at all.

    They can accommodate motors with hole patterns sizes 16mm to 25mm, this is great as the larger slow motors can be fitted.

    The only problems I encountered (and this is specific to myself with my build) is that, although you can get a motor with a 25mm hole pattern on a single arm when you come to turn it into a coaxial you cannot get the 4 screw in as the motor overhangs. (The motor i used was a T-Motor 3508 700kv) It would help if the maximum motor size for coaxial use was stated.

    As I had already purchased the motors I had to find a solution, and that was to drill 4 M2.5 holes on each side of the arm and the same matching on the X5C, I then made a 1.5mm thick aluminium plate with 4 holes in to match the ones in the arm/X5C that I had drilled. I cut the heads off the 4 M2.5 screws and used them to locate the X5C then clamped the side plates on.

    This worked well and looks quite good.

    A great product and well thought out, just need a little more info on product page.

    Review by colin rowe

    Posted on 12/05/2015


    my F550 #1


    F550 ARF E300 + Naza-M V2, GPS + iOSD mini

    9,4 x 4,3 selbstsichernde Propeller


    X55 Extended Aluminium Arm


    DJI F550 Landing Gear Set


    DAL 2-Axis Brushless Gimbal For Gopro 4 S


    Skyzone 5.8G 600mW 32CH AV Transmitter Module



    3S 5200mah LiPo (T)


    Gain Settings (Pitch, Roll, Yaw, Vertical, AttiRoll, AttiPitch).

    225 225 90 205

    158 158


    Photo Address


    Very Good ~ Good

    Review by JAE SEONG MA

    Posted on 26/04/2015








    Stunning precision engineering here by aeroxcraft. Needed to have bigger props on my dji f550 hex and these are the answer!

    Will be back for more for any future builds !

    Review by Marc Smith

    Posted on 26/03/2015


    Great arms, light, strong, really well engineered, now on 12" cf props its made my hex super stable, increased flight times & can carry more load easily.

    An excellent upgrade & a must for anyone with an F550/F450

    Review by Sam Hunt

    Posted on 18/03/2015


    Well done Aeroxcraft on a superb piece of engineering. The extension arms are first class both in manufacturing and looks, they will look fantastic on my 550 upgrade!

    Review by Frank McQuade

    Posted on 16/03/2015


    Very nice arms, precise production, ideal conectivity with frame element from DJI or TBS. The only point is that it is better to make an order withaout any forwarding companies. Provided shipping is very fast.

    Review by Valerii Iakovenko

    Posted on 09/03/2015


    I bought four of these arms along with four X5Cs for my F450 coaxial octocopter build. These arms replace ones I ordered from the US which I originally used on an F550 build. Unlike my previous arms,the Aeroxcraft arms use M2.5 screws, exactly like the ones from DJI. Great if you are upgrading, but I personally prefer the M3 hex nuts I have used previously. I also found it a little challenging fitting T-Motor MN-3110-17 motors - but Lee from Aeoxcraft has been really helpful.All in all these arms are well made, but what really stands out is the professional level of support Aeroxcraft gives its customers. Well done, and I can't wait to fly my F450 coax octocopter!

    Review by Clifton Saran

    Posted on 28/11/2014


    Excellent Arms, Lovely Design, Can be used AS Quad , Y6, or OCTO!

    Review by Tarek SAADE

    Posted on 16/11/2014


    A precision upgrade for my 550. These extended arms with larger motors and props turned my 550 into a power machine, increasing fly weight, stability, agility, and better video quality. High quality material and manufacture.

    Review by MARK DANDREA

    Posted on 13/11/2014


    Great product.

    brings new possibilities for my F550

    nice that you have different colours!

    Review by Christian Freydl

    Posted on 12/11/2014

    More Information
    Colour N/A
    Manufacturer AXC Drones (Aeroxcraft)
    Write Your Own Review
    You're reviewing:X55 Extended Aluminium Arm - BLACK - For DJI F450 / DJI F550
    Your Rating