Lumenier QAV-S 2 JohnnyFPV SE 5” frame - best cinematic drone platform for 2024?

Check out these frames!
5" Frame 👉 bit.ly/QAVFPV5
2307 (5") motors 👉 bit.ly/FPV2307
7" Frame 👉 bit.ly/QAVFPV7
2807 (5") motors 👉 bit.ly/FPV2807
Premium Stack 👉 bit.ly/ArgusProPlugs
Budget Stack 👉 bit.ly/ArgusEco
GoPro arm 👉 amzn.to/4c3Xzpt
DJI O3 Air Unit 👉 bit.ly/O3Air
✅ X-lock system is clever & changing arms is fast
✅ Rear assembly has 5 different plates, rear-cam mount, and tilts!
✅ XT60 on rear assembly frees up battery space
✅ Aluminum DJI O3 bracket is good for cooling and cable management
✅ Front DJI O3 mount allows cam to move forward and backward
✅ Premium materials - carbon, aluminum & molded plastic
⚠️ A little hard to install GoPro mounts
⚠️ I would have liked a more generous hardware kit... pre thread-locked hardware would be nice, m2.5 8mm screws may not be long enough
Chapters:
00:00 Introduction
01:35 Unboxing
05:08 Build sequence
06:52 Frame Review
14:27 Conclusions
Overall I absolutely love this frame, the quality and innovation makes this one of the best frames on the market at any price point.
I'll do a complete build & flight test in part 2, please make sure you're subscribed! bit.ly/colibrifpv
Duality DJI O3 antenna 📡 bit.ly/LumO3
Foam landing feet 🪂 bit.ly/landfoam
Goggles:
DJI Goggles Integra 👉 bit.ly/IntegraGoggles
DJI Goggles 2 👉 bit.ly/DJIG2
Google V2 (renewed:) 👉 amzn.to/3L6j7GF
Best foam for V2 Goggles 👉 bit.ly/V2Foam
My favorite DJI O3 micro: QAV-Nano
RTF QAV-Nano 👉 bit.ly/QNanoRTF
Build Kit 👉 bit.ly/QAVNKit
#lumenier #johnnyfpv #getfpv #fpvdrone #cinematicfpv #dronevideo #fpvlife

[@colibrifpv]

Here's a build list... 5" Frame 👉 bit.ly/QAVFPV5 2307 (5") motors 👉 bit.ly/FPV2307 7" Frame 👉 bit.ly/QAVFPV7 2807 (5") motors 👉 bit.ly/FPV2807 Premium Stack 👉 bit.ly/ArgusProPlugs Budget Stack 👉 bit.ly/ArgusEco GoPro arm 👉 amzn.to/4c3Xzpt DJI O3 Air Unit 👉 bit.ly/O3Air

[@QuadMcFlyFlies]

Just a head's up on the GoPro mounts, you can file the carbon a bit on the bottom if they're too tight. They're specced to slot in without too much force, but sometimes tolerances are a bit challenging, especially on the first run. If you're having issues, get in touch with GetFPV/Lumenier support and they should be able to arrange for a new plate to be sent out with confirmed tolerances. Usually a few passes with a file or sandpaper on the bottom of the plate is enough to get it slot in and out smoothly though. Moving forward this should be a non-issue though.

[@colibrifpv]

That's great advice, I really appreciate it!

[@QuadMcFlyFlies]

@@colibrifpv Great review by the way, can't wait to see your build video and footage!

[@colibrifpv]

Thanks a lot for your support. Can't wait to get this one in the air, the build has been super fun so far!@@QuadMcFlyFlies

[@lalojr76ify]

Had to do that with the Joshua quad build.

[@colibrifpv]

That's good advice...

[@cbcooper5848]

This was really great, much appreciated, looking forward to the build video!!!

[@colibrifpv]

Thanks a lot for your support, really appreciate it! Build is almost finished and I will have another video up soon...

[@sprowl21]

I’m excited to see the build video! Great video!

[@colibrifpv]

Thanks Waylon, its an awesome frame and the build is coming out 👌

[@GetFPV]

Awesome, thanks for the video Colibri!

[@colibrifpv]

It was a my pleasure, there are some very cool innovations in this frame and I'm really excited about the X-lock system and the rear assembly and that rear camera mount.... should be tons of fun experimenting with that rear cam!

[@ciprioltean360]

@GetFPV on which date you planning to release those 2307 (black and gold johnnyfpv) motors? seen in this video^

[@kellywasden]

one of the most frustrating experiences building in this frame. Lumenier needs to get their act together and provide additional screws. Found my kit missing plenty and the plate for GoPro mount is ridiculous. Really surprised a $100+ frame is shipped like this..

[@colibrifpv]

Sorry to hear that you had problems with your frame kit. I totally agree that the hardware kit is a little sparse considering the price point. Why don't you try contacting GetFPV and/or Lumenier and they will get you the hardware you need... [e-mail]

[@colibri_art]

Great video dude!

[@timothyreyes5392]

Tpu gopro mounts will be superior vs hard plastic. Hard plastic is like going back to 2015-2017 , at the same time its a colab with Johnny so i think crashing was never part of the equation 😂

[@colibrifpv]

Those plastic mounts seem super strong once they are installed since they lock onto the carbon plate. The problem with TPU is that the screws holding them to the frame could pull through the relatively soft material. Have you seen the GoPro mount on the Moz7? It's TPU, with a carbon plate holding it onto the frame...

[@timothyreyes5392]

@@colibrifpv The CF plate for the Moz7 is to reduce unwanted flex and yes to avoid pulling out due to not having washers installed and over tightening. I use TPU or PCTPE for gopro mounts simply going back to hard plastic or may it be PA12/PA/PC is still not an option in my opinion as it will surely break from any FPV crash.

[@timothyreyes5392]

so I still think crashing was never part of the equation considering a high production pilot like johnny, the guys here just swap out the quads for a different one and have the spotters or mechanics? repair what can be repaired. With that said I think modularity is what they went with with this frame design. TPU print will still be more expensive than plastic injected parts so it could be said its cheaper to just replace the gopro mount if you dont crash or hit something that often.

[@colibrifpv]

I used used similar mounts on Diatone frames and I've broken loads of stuff, including arms, a GoPro cage ( I know, I know, should have used a TPU case) but never the plastic mount on the frame. If you know what you're doing with a 3d printer than you can probably print up a mount that is more durable than the included one. You have to admit that the rear mount is cool though, right?

[@timothyreyes5392]

@@colibrifpv I print and print my own most of the time I love having color options as well! hahaha but yes absolutely no complaint about the rear mount. For sure Naked gopro at the front and rear. The design speaks high budget skill, hardware and crew hehehe. I also noticed the angle i like that so that when the quad is moving forward the rear camera angle is compensated giving a leveled framing?

[@colibrifpv]

Check out the QAV-S 2 JohnnyFPV Frame! 5" 👉 bit.ly/QAVFPV5 7"👉 bit.ly/QAVFPV7

[@dizzydeanfpv45]

Great video just got this frame yesterday!! New subscriber

[@colibrifpv]

Hey that's great, you'll love this frame, super nice quality. Just take your time inserting the GoPro mount and use some fine sandpaper on the plate if it doesn't go in easily. What motors and stack are you using?

[@dizzydeanfpv45]

@@colibrifpv im using the skystar f7 55 amp and the supernovas...ill also be using the dji action 2 or my mini 11. i cant find arm guards that fit for the tpu?? theyre all so damn big!! i had no problem on the original johnny... ithink this framw is kinda built for like hardley no tpu

[@colibrifpv]

@@dizzydeanfpv45 Sounds like an awesome setup, super powerful! I've been told that there will be official armguards for this frame made by Brain 3d but they aren't out yet but they will be soon. I thin knot including TPU was intentional because all of the parts are super premium, aluminum and carbon, etc. If you want to know ETA on those TPU parts you can email [e-mail]. Good luck with the build!

[@dizzydeanfpv45]

@@colibrifpv omg thanks so much I really appreciate the information and I'll be looking into that! I'm glad I subscribed to your channel, nice chatting with u

[@colibrifpv]

@@dizzydeanfpv45 Thanks a lot bud, nice talking to you too!

[@AsgardStudios]

Nice Buck 110 there :)

[@colibrifpv]

You noticed that eh? It's an old one, was my Grandad's!

[@johnsmithe4656]

That anodized aluminum looks like copper! Would have been more steampunk if they shaped it all like copper pipes, but still beautiful!

[@colibrifpv]

I know, I love the looks of the copper color set against the black carbon, looks super nice!

[@NanceLvr]

You have a full parts list for the camera and antenna and a good possible motor and esc?

[@colibrifpv]

Hey, thanks for watching, sure thing! Build list: 5" Frame 👉 bit.ly/QAVFPV5 2307 (5") motors 👉 bit.ly/FPV2307 7" Frame 👉 bit.ly/QAVFPV7 2807 (5") motors 👉 bit.ly/FPV2807 Premium Stack 👉 bit.ly/ArgusProPlugs Budget Stack 👉 bit.ly/ArgusEco GoPro arm 👉 amzn.to/4c3Xzpt DJI O3 Air Unit 👉 bit.ly/O3Air * I recommend using the antenna that comes with the DJI O3, it's works great and a long antenna might make it harder to tune the quad. * Either of these stacks would work well, depends on your budget. Don't get the August "pro" stack with the aluminum heatsinks, it's too tall and it doesn't fit into the frame well. Good luck, let me know how it goes!

[@shenkel838]

Great video and nice music. Where is the music from?

[@colibrifpv]

Hey thanks for watching! It's from the KZbin audio library 😉

[@LiverpoolFPVHub]

I just built this frame. Mixed feelings. Frame feels and looks premium. But having to file down the frame to get the GoPro mounts in was a faff. Had a problem with one of the screws locking in the XT60, had to order some more. And the screws are not long enough to mount the O3 unit. Unless I’ve messed up, but I can’t see that there are any other screws of this dimension 🤷🏻‍♂️ Not as straight forward as it could’ve been.

[@colibrifpv]

Thanks for your feedback, sorry you had problems getting this frame together. re: GoPro mount, it was pain to get it in the first time, but after that it goes in and out easily. Be careful not to tighten that screw down too far, the mount will crack... re: XT60 screws, yeah I had a problem also, mine were not long enough. Problem is they are M2.5, which is not a standard size. re: O3 screws, really? That surprises me, mine fit okay. Definitely contact Lumenier support, they are really great with after sales support, and they will get you taken care of!

[@QsilverFpv]

Very curious about your first flight if the power is going to interfere with the signal being less than 2 inches away from broadcasting devices and the power cable

[@colibrifpv]

Hey thanks for watching! I can say from experience that it will definitely will not be an issue, the DJI O3 has been shielded or designed with that use in mind because I've had several similar builds with no problems!

[@HS_COMET]

I fixed the front GoPro mount issue. I cut out some of the carbon space and made it into a U shape. So I position the plastic mount first, push the carbon spacer in, and then bolt it in.

[@colibrifpv]

That's awesome, sounds like a good solution. Your mount is still somewhat tight or firm though right? i.e., it still has a little bit of friction when you insert it? The only thing I worry about is loosening up the hole in the plate too much, which could weaken the mount...

[@HS_COMET]

@@colibrifpv I sanded the side of the spacer to adjust the tolerance.

[@ZeeRoverFPV]

Ordered a couple frames. Are those motors released yet? 👀

[@colibrifpv]

That's awesome, you'll love those frames! No, I don't think the motors are released yet, but they will be by the end of the month.

[@ciprioltean360]

quick question, where did you find those 2307 (black and gold johnnyfpv) motors...I looked everywhere on their site and I cannot find these new ones... do you have a link? also great content, just subbed💯

[@colibrifpv]

Thanks a lot for that, really appreciate it! These 2307 motors haven't been released yet but they will be up on the GetFPV site soon...

[@ciprioltean360]

@@colibrifpv sounds good, this week you think? I want to make an order with the new frame and other parts and I want these motors on same order.. thinking of waiting on my order

[@QuadMcFlyFlies]

@@ciprioltean360 I think I heard two weeks on the motors.

[@DUBZILLAco]

What size are the zip ties you use??

[@colibrifpv]

Sorry I don't know exactly, but you'll want small zip ties, easy does it and smaller are less obtrusive. I recommend picking up a set of zipties, super useful to have on the workbench!

[@Gabriel-qh5yv]

The back assembly of the frame it is gone brake first thats a wick point

[@colibrifpv]

We'll see how well it holds up! Remember there are 5 different rear plates included, and the one I was suing was the largest, intended for a rear mounted camera...

[@Gabriel-qh5yv]

Lumenier always made good products and Jhonny Fpv it is a legend name in Fpv community and the frame looks amazing so I have all my trust in to be good frame ☝🙂👍

[@hotspot9587]

Can i ask a question? How do you recommend axisflying argus pro for this frame, this stack is 26 mm in height and frame just have less than 23 mm space for esc and fc!! I trusted your guidance and ordered the frame and the stack too☹️

[@colibrifpv]

Do you have the version with the aluminum heat sinks? I have the version without the heat sinks and it fits fine, in fact I'm doing a build video on it right now. I will measure when I can and get back to you.

[@hotspot9587]

@@colibrifpv yes i have bigger version,with aluminum heat sink🥲but i solved the problem with 3d printer,4mm spacer rings! I increased frame height and everything is ok now and about your next video i'm so excited to see your build with this awesome frame,thanks

[@colibrifpv]

@@hotspot9587 I'm so glad you worked it out! It was confusing for me when I looked up the wiring diagram of this stack and found images of the heatsinked version.... basically the sell the two versions under the same name. I've got mine in the air and it flies great, I do get props in view in the DJI O3 footage but I don't mind it. How about you?

[@kevinglenister6520]

Was this a preproduction kit... I think you said that? As in this video you said it came with 19 mm adaptor plates, I went on the links you provided and the kit no longer includes adaptor plates for a 19 mm camera such as walksnail. The assistant on the sites chat said I would have to make my own. Are they mixed up ? Just wanted to know your take..

[@colibrifpv]

Hey, it can definitely mount a 19mm cam. There ARE two sets of camera plates, the thicker set is for the 19mm cams. Also, even with the thinner plates, you can flip those rubber grommets around to accommodate different camera thicknesses also 👍

[@LongboardersMD]

Sorry to say, but the issue with the shorten screws on the xt60 and the GoPro holder plate and the mounting of the GoPro holder on the top plate is not solved yet. I am quite unhappy about the decreased Lumenier quality. Specially to carry a GoPro is a must have for every FPV frame. I hope that the Lumenier support is helping soon.

[@colibrifpv]

You are right that about the QA issues, especially at this price point. The good news is that they are not such a bug deal to work around - fine sandpaper around the carbon plates fixes the GoPro mount and two longer m2.5 (9mm for example) solves the XT60. Try emailing support@getfpv, I'me sure they will take care of you. Hope you get it worked out!

[@biglizardmedia]

Could we get an O3 DVR test please? I'd like to know how much prop I am getting in view

[@colibrifpv]

Hey, thanks a lot for watching! Yes absolutely, I'm working on another video right now that will have some DVR footage...

[@MikeyFPV]

Waiting on those results before I pull the trigger on this frame

[@biglizardmedia]

Update?

[@colibrifpv]

@@biglizardmedia Yup, I've got a full review video coming that will drop when they launch the BNF, thanks for your patience.

[@radioactivelight]

Is there a specific gimbal you would recommend?

[@colibrifpv]

We don't use gimbals in FPV (except for a few rare cases), but you can rung the footage you get from the DJI O3 or GoPro through software like ReelSteady or Gyroflow to get some very clean and stable footage!

[@afieldingjr.21]

Can you use the brain3d Johnny fpv qav s mount instead of the mount it comes with?

[@colibrifpv]

Hey thanks for watching! I'm sorry I don't know, I don't have the original version, but I can say for sure that they are working on a whole new range of 3d prints specifically for this frame which will be available soon. Maybe you could ask GetFPV support just to be sure? www.getfpv.com/contact

[@LifeofAccro]

looks like a sexxxay frame! btw you start a 00:00 in the description of you want your chapters to work ;)

[@colibrifpv]

Oh I didn't know that, thanks for the tip 👍

[@endremurti]

hy, what about the camera (o3) vibration handling?

[@colibrifpv]

This frame is designed specifically with the DJI O3 in mind and the O3 cam is soft mounted so it shouldn't be an issue, although I haven't had a chance to actually test it yet. I will have another video with test flights to check that, props in view, and how it flies in general.

[@QuadMcFlyFlies]

I've got a video with some stabilized footage over on my channel if you want to see how it flies, but I'm looking forward to @colibrifpv results as well!

[@endremurti]

​@@colibrifpvgot it 👌

[@biglizardmedia]

Link to 3D arm guards and ELRS antenna holder to print?

[@colibrifpv]

Those should be available soon on the GetFPV website. I'll get back to you once I confirm.

[@biglizardmedia]

Perfect, thanks@@colibrifpv

[@DUBZILLAco]

Are the motors available to the general public yet??

[@colibrifpv]

Hey! No, not yet, but they will be released very soon and I will have another build up shortly with more information so stay tuned 😉

[@DUBZILLAco]

@@colibrifpv stoked!!

[@DUBZILLAco]

What arm is that your using for the insta360 go??

[@colibrifpv]

Here it is on Amazon! amzn.to/4c3Xzpt

[@DUBZILLAco]

@@colibrifpv thanks so much bro!

[@indroneswetrust1]

Very nice frame, badass! But i have few cons that i don't like it in my opinion... 1) the price, man that's too much, $110 and it just too much to me. 2) the back of frame, where the DJI 03 antenna is sitting back with that piece of carbon fiber, that got my azz cringe 😬, cuz it does look like it will break so easily on hard-on crash, or like a branch hit the back and it will be bye bye DJI 03 antenna and it could ruin the 03 system. 3) the color of bronze does not look good. I prefer it to be like any bright color so that way we can see it more pop out with black carbon fiber instead of both bronze and black carbon fiber are both dark/dark. 4) i prefer TPU to cover up these ends of arms and motors, cuz nowadays motors are getting expensive. 5) the soft feet, oh boy that's so old, but understandable to save money but since it's $110.00 frame, they should provide more better high ends for feet, cuz the tpu to cover the end of arms and motors, PLUS it acts like feet too so don't need these soft feet on this frame. It's just my few cons that i don't like on this frame, this frame should be about $75, in my opinion so therefore it's not for me at all. But great video as always, thanks for share this video... This frame cringe my azz, cuz of the back of frame 😬 🤣🤣🤣

[@QuadMcFlyFlies]

The price actually isn't that bad when you look at what comes with the frame. You don't need any 3D prints, most folks spend $20+ on prints for antenna and camera mounts that don't come with many frames. It also comes with all the additional accessories and mounting, XT60 connectors, wires, etc. Plus the custom machined aluminum is not inexpensive to have made. The epoxy coat on the carbon also adds to the manufacturing costs. It's definitely a premium frame though, but when you consider frames were going for $100+ 10 years ago, the price is actually not bad. The frames we were buying for $100 back in 2016 would be $130 today with inflation, so $110 at release is not too bad in my opinion. I'm glad prices have dropped, and the Bardwell edition is available for those that want a more standard frame, but to get these kind of features it unfortunately costs more to produce. Also we've been testing the frame for 6 months plus now and have yet to damage anything on the back end. It's actually super durable, and the rubber grommet actually helps prevent damage to the antenna compared to other stiffer mount methods. It's actually saved my antenna more than once. I agree with you on the foam feet though, I throw them in a box and don't use them. Fortunately there are plenty of aftermarket options if you want to add your own arm protectors. Brain3D will have ones for this frame shortly. Of course you're free to not like the frame, personal preference and all, but we did put a ton of thought and testing into it, and it's being offered at the best price possible for what was put into it. Either way, happy flying with whatever you put in the air!

[@colibrifpv]

You've got some good points here, but just to clarify, I did have the thicker rear plate installed for this video, which is intended for a rear GoPro mount. There are other more streamlined plates included. If you use zip tie on your antennas it's pretty secure, and even if you were to break something in a crash it would just be the antenna (cheap replacement) not the O3 system, which is super well protected. I do like to use foamy feet on ultralights bc I like to get the longest flight times possible, but if you are free-styling or flying aggressively, you could print up some TPU arm guards. You have to admit that the back end of the frame looks pretty amazing though, right? Did you notice that moving the XT60 off the main plate frees up more battery space?

[@indroneswetrust1]

@@colibrifpv yes I do like that idea of tilt on the back of drone and it moves xt60 and GPS module and 03 arena freely, I love that one, and yes I do freestyle and I do sometime aggressively freestyle, that's why I was talking about TPU mounts on end of arms and protect the motors and it acts like feet as well, like it's for 3 in 1, if you know what I mean? Yeah and I used to do 3PV, the rear GOPRO mount for 3FPV. But I can see that stick that holds the GOPRO mount will break very easily on my aggressively freestyle flights. So I don't fly with 3PV anymore to save me more weight and fly longer cuz I'm flying with 03 system for 4k/60fps. I'm all about aggressively freestyle, fly longer, save weights, durability, and some of speed... Gotta have the need for speeds, heh! 😁🤣🤙🏼 By the way, are you saying that in case iffff I break the 03 antenna and it is completed off from 03 system, and it will not ruined??? Are you saying that it will be fine after I install new 03 antenna??? Can't be, cuz just like analog system, I used to fly on analog system so long ago and I have ruined many analog VTXs, cuz of antenna is completed chopped, off from VTXs while it's still plugged in the battery. So lemme know, thanks dude 🤙🏼

[@indroneswetrust1]

@@QuadMcFlyFlies thank you for clarification that, happy flying as well from fpv pilot to other 😁🛸

[@QuadMcFlyFlies]

@@indroneswetrust1 To answer your other question, from what I understand, yes the O3 has dynamic power and will lower the output power when it detects a change in the antenna impedance, such as a lost or damaged antenna. It will do the same if it starts to overheat due to lack of circulation, etc. It's a pretty smart system.

[@lalojr76ify]

Could this be used for freestyle as well?

[@QuadMcFlyFlies]

Absolutely, it's a great freestyle frame. I've been testing prototypes for 6 months or so and it is my go-to for freestyle.

[@lalojr76ify]

@@QuadMcFlyFlies can’t wait for mines to come in.

[@colibrifpv]

As a true X frame it's literally designed for freestyle so yeah 🤟

[@yannixel6193]

So are there props in view?

[@colibrifpv]

Yes, there are props in view in the O3 footage but you hardly notice it, at least with the "wide" 4k60 + Gyroflow, which is my normal workflow. You could probably avoid props in view by filming linear, but I think you lose gyro data that way... If you want best image possible, use a GoPro, if you want good, usbale images, just use the O3 DVR and don't worry about it, like I said you hardly notice it. I will have the full review up shortly with lots of samples...

[@yannixel6193]

@@colibrifpv thank you so much

[@colibrifpv]

@@yannixel6193 Absolutely, I love this stuff!

[@warmachined3472]

I like diy fpv, I'm working on a project myself. However, I feel like the sport all together is getting patented, branded, hyped and upsold for prices that aren't realistic. Makes it hard to get into and get started.

[@colibrifpv]

Hey, thanks for watching and leaving your feedback! Well, just like any sport there is high-end, specialized gear that provides a level of quality that some people will need and appreciate, and some won't. If you want a cheaper option, go with a Source One... it's flexible, durable, customizable, and cheap. If you want or need one of the best frames on the market, loaded with premium materials and innovations, consider this one 👍 😁

[@bubbabirner6152]

You can always 3D print the chassis that you want for around $15 as well

[@warmachined3472]

@@bubbabirner6152 True, very true.

[@warmachined3472]

@@colibrifpv You kind of repeated my point right back to me but I understand, kind of like EV's. Sure, they are great for the environment, if you believe that, but there aren't any in what would be considered a "normal price range". An odd comparison I know however, I want to start with something built with quality but can't. On the other side of that coin there is the prospect of cheaper products, lacking in the quality of experience, but still usable. No one wants to go cheap in regard to quality. I believe it would sour the whole sport for someone just starting out.

[@warmachined3472]

@@bubbabirner6152 A minor redesign but yes, at that point you are looking at a few calculations, motor thrust, strength of the print, taking into consideration material and since we are referring to this from the point of affordability, most wouldn't consider a 3D printer. Transmitters are another large part of the expense, and deciding on one when you are in for lack of a better term, beginner mode, could be difficult.

[@BergeronFPV]

I cannot for the life of me get the damn camera mount to snap in. about to give up

[@colibrifpv]

Yeah I hear you, I had the same problem and they suggested using some fine sandpaper on the plate to widen it out ever so slightly... once you get it in the first time it is much easier after that...

[@Robocopter_fpv]

just dont crash into that back plate .

[@Robocopter_fpv]

also how are tpu landing skids uneeded bling? Everything about this frame screams broken in a crash

[@colibrifpv]

You have a point, and I can see how TPU feet would be worth printing up because they do add some extra durability. I've noticed a lot of frames out right now come with parts like plastic motor wire guards, side-plates, TPU air unit mounts etc. that can add weight without being necessary.