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FR 4D 4x90 Flat Inline Skate Frames

FR 4D 4x90 flat inline skate frame, black, side view with the 273/90mm print
2026 FR 4D 4x90 Frames - $149.99
Frames: 4x90 10.7".
Sold out right now. In stock: The FR R2 flat frames, 90/80 and 90/84, and the FR Freeride flat frames, both for a 165mm mount.
The FR 4D 4x90 is a flat frame for four 90mm wheels, on a 273mm wheelbase. It fits boots with a 165mm mount. FR's FR1 80 skate rides the 4x80 version of the same 4D frame.

FR 4D 4x90 Frames features

  • Flat 4x90 on 273mm: Big wheels for speed and rolling over rough pavement.
  • 165mm mount: Fits boots with a 165mm mount.
Made for: Freeride and city skating on 90mm wheels.

Sizing

The frame comes in one length.
FrameLengthMount
4x9010.7" (273mm)165mm

Questions

What boots does it fit?
Boots with a 165mm mount.
What wheels does it take?
Four 90mm wheels per frame, sold on their own. See our inline skate wheels.
What comes with it?
One pair of frames with axles and spacers.

Specs

Wheels4x90
Length10.7" (273mm)
Mount165mm
ColorBlack
Sold asOne pair, axles and spacers included

More inline skate frames

FR R2 Flat FramesFR R2 Flat Frames$99.99FR Freeride Flat FramesFR Freeride Flat Frames$199.99FR Deluxe V3 FramesFR Deluxe V3 Frames$149.99FR R2-R FramesFR R2-R Frames$139.99FR Carbon FramesFR Carbon Frames$349.99
Questions?
Call us at 1-800-668-5280.
See all our inline skate frames.
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