(4 customer reviews)


The BQE SX3u is a stretched x mini racer for 3″ props on 1306/1407/1507 motors. It’s fast as hell.

  • Designed for 3″ props on 1306/1407 motors.
  • Stretched X configuration.
  • Beefy 4mm carbon main plate.
  • 3d printed TPU camera and antenna mounts.
  • Clean fit for Raceflight Millivolt/Spark.
  • Fits either size Flight Controller stack.
  • For Runcam Mini Swift / Foxeer Mini Arrow / Runcam Split

Bench mount for GoPro Session available separately, but is not included with this kit.

In stock

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This is a stretched out micro for 1306/1407 motors and 3″ props. The BQE SX3u has unibody quasi-isotropic 4mm 3k carbon fiber baseplate and a 2mm 3k top plate, and ships with both 20mm & 25mm standoffs. This is designed for 20×20 FC stacks such as the Raceflight Milivolt/Spark stack (and it doesn’t stick out the sides!) and also fits a 30.5×30.5 stack for building with Runcam Split or full size electronics. The included TPU camera mount is designed for mini size cameras such as Runcam Swift Mini, Runcam Split or Foxeer Arrow mini cameras.

What’s included:

  • 1 x 4mm 3k T700 Toray Carbon Fiber unibody frame
  • 1 x 2mm 3k Carbon Fiber Top Plate
  • 1 x 3d printed TPU camera mounts
  • 1 x 3d printed TPU RX/VTX antenna tail mount
  • 2 x Mini antenna tubes with caps
  • 4 x 20mm M3 aluminum standoffs
  • 4 x 12mm M3 cap screws
  • 4 x 10mm M3 cap screws
  • 4 x 4mm M2 socket head screws (camera screws)

4 reviews for BQE SX3u

  1. Travis Brann

    I just want to let you know, no other build I’ve ever done has lasted as long as this one has flying around at The Underground parking garage(besides the 1S Pixel). Usually they last no more than a couple of trips but this one has been there like 10 times now and survived at least 8-10 good crashes into concrete. Given my track record that’s pretty amazing.

  2. BoneFPV (verified owner)

    Hands down , the best 3″ frame out there. Mine it crazy fast and nimble running 1507 4100kv motors. I love having options and the SX3U has got it, with 20×20 fc or a full size 30×30 fc mounting holes.If you’re looking for a tough as nails 3″ frame look no further!!!

  3. Tornado Girl FPV (Mary Beth)

    This is my favorite 3″ frame. I love the 4mm body for 1407, and the design has lots of room for my electronics, no squishing stuff in. I thought it would feel heavy, but it doesn’t. I’ve had about 6 prior 3″ frames and this is the best one. I will stick with BQE.

  4. Charles (verified owner)

    OK I don’t like their other 3″ the 3AF it seems a bit limited and oddly tight, This 3″ however is prefect. Everyone is all toothpick happy these days but this SX3u is just a SMALL version of an excellent 5″ basher. Alls I could want more would be replaceable arms. but at $45USD I’m good . Its an awesome frame . ( EXCEPT THE CAMERA Holder )

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