Skate Sizing

Choosing the correct skate size is a very important task and usually even more important than choosing the skate model! All high-quality skates will have a break-in period and will adjust over time to the skater’s feet. Some will take longer and some shorter, but while you want to have a comfortable ride you do not want to have the skates too loose… The correct fit will determine much more than just the comfort - it will define how much control, power transfer, and agility you would have while skating, and even would affect the balance.

Please remember that the skates will feel the worst when you try them for the first time and from there the fit will only improve!!!

While various skating styles and skaters themselves have different preferences, below are the general instructions on how to determine the perfect fit for your new skates.


Most inline and roller skates are manufactured and sold in European sizes (EU), so your US / UK sizing could be a wrong idea to use due to conversion inaccuracies. Furthermore, even if you know your European sizing, every shoe and skate manufacturer has a slightly different fit and sizing, therefore your standard shoe size might not assure a perfect fit but that is the best way to estimate your skate size. In any case, the inline and roller skate size should be either equal to your shoe size or no more than one size up or down from it.

Based on our experience, the best way to determine your skate size is to take a look at your current pair of skates and/or running shoe labels for MM / CM / MP / MONDO numbers. These numbers are indicating the maximum foot length that will fit into the pair, while MM shows the measurement in millimeters and CM/MP/MONDO is centimeters. Having these numbers along with the EU sizes from these shoes, you will be able to determine the size of the skates that you need by looking into the brand or model-specific sizing chart (usually located in the Sizing tab under the skates photos or as one of the product photos). If cannot be located, please send us an inquiry and we gladly will help you out!

Important: Many shops are recommending measuring your feet to determine your skate size, but we have found that this leads to too many mistakes and do not recommend that. If after following the instructions above you are finding yourself stuck in between two sizes, you could measure your feet according to the directions below. In this case, your shoe size is still the defining factor, so if the measurement is showing more than one size up or down, something is wrong with the measurement! If your foot is wider than average, please go one size up. Usually, Seba, FR, and Adapt skates fit wider than average, Powerslide and K2 average, Flying Eagle and Rollerblade average to narrow...

Still, want to measure your feet? Here is how to do it:

You’ll need paper, a pen, a flat wall, and, if possible, a buddy to help. It’s best to measure your feet later in the day after you have been on them for a few hours to account for swelling.
Find a hard floor with a flat wall. Tape a piece of paper down so that it touches the wall. Stand on the paper in bare feet, with your heel just touching the wall.
Have your friend take a book and place it so that it just touches the tip of your longest toe. Mark the spot where the book meets your toe. Do this with both feet and use the larger of the two measurements. Measure your foot length in millimeters, if possible. If you measure in inches, be sure to measure in 16ths of an inch.
Choose your size from the manufacturer's sizing chart. The “Max Foot Length” is the longest foot measurement that will fit into that size. The US Men’s column lists the sizes found on the box.

Here is a great sizing video courtesy of Powerslide:



Our sizing advice is targeted at freestyle or dance skater who wants a very snug fit in their skate to enjoy maximum control. Our instructions will give a fit that prioritizes control over comfort. If comfort is a higher priority, or if you have an especially wide or oddly shaped foot, you may do well to choose a slightly larger size. If you are near the boundary between two sizes, you would probably be better off going with the larger size in case you prefer comfort over control.

Notes about Width
In general, the Plastic Boot skates with a built-in liner have a narrower fit through the foot, while the boots with a removable liner and soft boots have a somewhat wider fit. The Carbon is a bit wider through the toe box than the plastic boot skates because the carbon fiber boot has less flex. As a rule of thumb, skates with built-in liners and "regular" liners will have less adjustment room.

We gladly will guide you in case you have any further questions. Email us at [email protected]

To help you better, please include all the sizing information off one or two pairs of skates or running shoes that you currently have including EU/US/UK/MP/CM/MM/MONDO, etc...

Flying Eagle Supersonic 110 165 Inline Frames


Flying Eagle Supersonic 110 165 Inline Frames. These Supersonic 3×110 frames are made out of 6000-grade aluminum and have a special CNC 3D reinforcement design, making them durable yet very light.

They are designed for skaters who would like to have the speed and low vibration of riding 110m wheels combined with the maneuverability of a 4×80 setup.

(13 customer reviews)

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Size Guide

Flying Eagle Supersonic 110 165 Inline Frames are sold in pairs

Technical Specs :

  • Size: 251mm / 9.8″ – 3x110mm wheels
  • Colors: Black, Red, Blue and Purple
  • Mounting distances: 165mm
  • Weight: 187gr
  • Material: CNC Aluminum 6000 grade

A pair of frames is coming with 6 axles and 6 spacers.

Additional information

Weight 1 kg
Frame Length (mm)

Skating Style



Frame Mount


Wheel Size (mm)

13 reviews for Flying Eagle Supersonic 110 165 Inline Frames

  1. Kacey (verified owner)

    Great frame!

    Not quite ready to move to 125mm. 110 is a very smooth ride and much more maneuverable than my 4x90mm frames I was riding before. The build quality of the frames, axels and bearing spacers is top notch. Highly recommend these.

  2. Calvin (verified owner)

    Works Great

    Installed these on my Rollerblade Maxxum 100 skates the fit isn’t perfect but its solid. Im using bones swiss bearings and atom one wheels and its perfect for city skating around Washington DC and the bike trails, the 110mm wheels can handle about anything and the shorter frame has amazing maneuverability. I have several other skates but prefer this set up for most situations. I originally thought 3 wheeled skates looked goofy but I now like the look and have gotten many compliments.

  3. Tonedawg

    You Gotta Get These !!!

    Try it! 3 wheels is the future of urban and fitness skating. And the cheapest way to try it out is to buy these frames and slap them on your old boots. But take my word for it… these frames have given me more speed and manoeuvrability than any advancement in inline skating since… since… since the Flintstones era!!! You will never skate on 4 wheels again!!!

  4. Andrew

    A must have for urban or fitness

    I bought these frames because I simply wanted to go faster than your traditional 4×80 setup. I recently bought the FE F7’s with the stock 4×80 rockerable frame. I should have originally got these frames because they’re much faster and worth it. Be warned, you won’t ever skate on 4 wheels again!

  5. Snoop the shark (verified owner)


    Great quality, Mounted on my Seba GT and they just ride smooth with gyro varlkyrie 85A smooth as ever on the road (asphalt)

  6. David (verified owner)

    Amazing Frames

    These are spectacular frames that enable the use of 110 mm wheels. They allow you to move on rougher roads and for greater distances than smaller wheels.

    The overall build quality of these frames is excellent. They are well constructed, and transfer power well.

    I am very pleased with my purchase of these frames, and have no regrets.

  7. E (verified owner)

    Great Urban Frame

    Great frame. Much smoother and faster rolling on the 110s. The frame is very maneuverable and not much longer than the 4x80s. It’s also much cheaper purchasing 6x110s than 8x80s.

    Very happy with my purchase!

  8. Damon (verified owner)

    Great Frames!!

    I bought these frames to get into triskating, and boy, was I impressed. These roll great and are very maneuverable. I would recommend these to anyone looking for those qualities… and I most definitely buy them again!

  9. ROYCE (verified owner)


    I’ve wanted this frame a long time! It’s the perfect 3-wheel design.

  10. Jacob

    Great frame

    Great frames.

  11. Stephen (verified owner)

    Great frame!

    Maneuverable, durable, and light! Overall great frame for the price.

  12. Dan

    Fantastic Frame!

    Really great frame! Positioned in the middle of the skate, it even feels like a 4×90 set up. Fear not the transition to tri skates with these. Very durable. I’ve had mine for years and they’re still in like new condition after a lot of abuse. Well done Flying Eagle. Worth every penny.

  13. Ken Endo

    first impression when I unboxed them… holy these are light.
    after a year of rolling these R.E.D. 2018 they still look great and feel very manoeuvrable and is the frame that I have the easiest time to bust out a powerslide or bill stoppard stop

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