Great frame. Easy to build and has options for all different cams and VTX.
Siren F5 S2
MSRP $106.00
Direct orders from our website are $78
Once the product is available through regional distributors, the retail price will be standardized at $106
Once the product is available through regional distributors, the retail price will be standardized at $106
Weight Approx. 107g Wheel Base 233mm Frame Type Sqaushed X Stack Mounting 30.5x30.5mm (M2/M3*) Camera Size DJI O4 Pro / DJI O3 Motor Mounting 16x16mm (M3) Vtx Mounting 20x20(M2)/ 25.5x25.5(M2) Support Prop Max 5.2inch Standoff Height 20/25mm
*M3 mounting holes are supported using M2 screws with silicone adapter tubes.
Carbon Fiber
- Top Plate - 2mm x1
- Front Plate - 2mm x1
- Rear Plate - 2mm x1
- Lock Plate - 3mm x1
- Arm - 5mm x4
- Top Front Plate - 2mm x1
Hardware
- M2x6 Countersunk -4/pcs
- M2x23 Countersunk -4/pcs
- M3x6 Button Head -4/pcs
- M3x8 Button Head -20/pcs
- M3x6 Countersunk -2/pcs
- M3x10 Countersunk -4/pcs
- M3x14 Countersunk - 8/pcs
- PS-2 Profiled Spacer - 4/pcs
- PS-3 Profiled Spacer - 4/pcs
- M3x20 7075 Standoff - 6/pcs
- M3x25 7075 Standoff - 2/pcs
Accessories
- TPU Camera Side Plate x2
- TPU Action Cam Mount x1
- TPU Capacitor Mount x1
- TPU Antenna Mount x1
- TPU M2 Nuts x4
- Rubycon 35v1000uF ZLH x2
- Damping Tube x2
- Battery Pad x1
- Battery Strap x2
- Backup Screw Pack x1
United States & Canada
- ePacket : $10
- DHL Express : $30
Europe
- ePacket : $10
- DHL Express : $30
Australia & New Zealand
- ePacket : $10
- DHL Express : $30
Other Countries
- ePacket : $15
- DHL Express : $30
Shipping Methods
- ePacket — Economy tracked shipping.
- DHL Express — Fast express delivery with full tracking.
Notes
- Select DHL Express for the fastest delivery. One free extra spare arm is included with each frame.
- Shipping methods available may vary by destination.
- If DHL Express is unavailable for your destination, we may use EMS instead.
- All packages are shipped from Taiwan.
For full shipping terms and details, please see our Shipping Policy .
Note: The TPU color has been updated from dark green to light green
The Siren F5 S2 is the latest evolution of our popular 5" freestyle frame, optimized for modern FPV standards while maintaining the lightweight agility pilots love.
Designed to fully support the latest DJI O4 Pro system, the F5 S2 features a reinforced front-end structure for better durability and crash protection. Its redesigned camera mount and top plate provide an unobstructed FPV view without any frame interference.
Like its predecessor, the F5 S2 retains a compact 233mm wheelbase, with optimal prop-to-prop spacing for precise control and maneuverability. It comfortably accommodates 4.9–5.2" props.
The frame provides generous rear space for mounting any VTX unit on the market. Our proven C-Lock arm system allows quick arm replacement by removing a single screw while enhancing structural integrity and tuning stability.
The QUADMULA PS-3 profiled spacer ensures secure mounting of the action cam and TPU parts without stress on components—ideal for confident flying and clean builds.
Thanks to its staggered bottom plate design that maintains a low center of gravity, the Siren F5 S2 delivers premium performance for pilots seeking strength, clarity, and precision—now with full next-generation digital compatibility.
Siren F5 S2
Sale price$78.00 USD
Choose options
Siren F5 S2
Sale price$78.00 USD
Add YouTube links to this product’s custom.kol_videos metafield to display videos here.
Customer Reviews
Overall rating: 5.0 / 5 from 34 reviews.
Quadmula frames are awesome and the service is very good too. They replied to all my emails and requests. They notified me when my Siren F5 split was back in stock. I flew HDZERO back then, i converted to DJI 04 pro. I asked via email and they informed me what upgrade kit to buy to convert my Siren F5 Split to Siren F5 S2 for DJI. I did not have to buy another quad to convert. My quad flies awesome, so stable. This is my best quad sofar. Thank you guys for a good product and good service.
Awesome frame!! I love the design, the prints, all of it! Had to buy an extra frame just to get extra arms!!
Quadmula changed the game again 😎
Great design and high quality carbon - I’ve built several of these now with consistent results. Would like to see this frame with M3 stack mount option!
F5 split is an awesome frame, s2 is amazing, especially when using an 04 pro
Love the way this frame was designed 👍 😍
Excellent service as always frame arrived in 2 days to the UK and its amazing 😎 would love to try the new sirena f5
Simply the perfect freestyle frame. Look no further
Awesome frame to build and fly, been flying it for 6 months now and its been super durable. running an action 2 and hdzero instead of a hero 7 and analog these days.
No matter which one you choose, every Quadmula frame has flawless design and engineering. It’s impossible not to admire them…
Best frame
My favorite frames by far!
Great frame to build, loads of TPU designs out there with plenty of community support.
Love this frame and the 04 pro!
Shout out to MidwestCustom drones for building me my first Quadmula f5. It is my favorite one out of my 10 drones to fly. Just bought the new f5 s2, Quadmula you guys/gals do an amazing job! From every aspect of my experience from customer service, delivery speed, and durability and longevity of a product. 5 stars ⭐️
8s build, perfect frame.
By far the best frame I’ve tried to date. This is my go to daily driver. I don’t know what sauce they put in the carbon but it’s one of the most durable frames I’ve flown. I’ve crashed it so many times and have yet to replace an arm.
Love the frame, will try and update after the DJI 04 Pro gets here.
Quadmula really made things right after a longer shipping wait than expected! Awesome customer care very quick response ! The frame is absolutely top notch as well awesome stuff!!!
Absolutely love these frames! Had to build up my DjinnF25SP to match with my Siren F5S2! Brilliant designs and love being able to mod TPU for these builds!
Top notch!
Love this frame! Easy build but it did feel a bit tighter than the SF5 for some reason. I just wish the stack screws were M3. Will eventually convert the SF5 to the 04 version. :)
Hands down ... one of the most cut throat solid frames I've been honored to build and fly!!! Craftsmanship of each detail is proven throughout the layout and design of this frame. F5S2 Bamm!!! T-Motor F40 1950kv Geprc F722 HD v2 stack 60A esc Custom TPU DJI04 Pro M10 Tattu 6S 1600 v6
Quadmula makes the best frames hands down!!!!🛸🛸🛸
The best and most robust frame I own. Can’t wait to build more Quadmula frames, I think I’ll be getting the Djinn F25 SP next!!🔥🔥🔥🔥🔥
Another true masterpiece of FPV, well worth the wait! My build does this frame justice with Foxeer H7, 65A Reaper, 2207 8S motors from RCinpower, and duel TrueRC antennas for the 04 Pro. Not at all like Pinkz up budget Kiss build with pin stripes. My black and gold build looks regal, and fitting for a frame of this quality.
Phenomenal frame as always. It flies like a dream. Bang up job!
Where I can find plug documentation ? And calibration procédure ? Thank’s a lot
It was my first build and the frame was pretty easy to assemble. I know it’s a squashed x but I say a YouTube video and thought that the props would be out of view and they are not. A little disappointing but it still flies great.
Great frames, pretty light , easy work on, flies tits good.
Solid and flys smooth.
Excellent frame. High quality, flies great. Came in just a few days. Highly recommend.