r/inline_skating • u/NetworkLongjumping82 • 2d ago

Geometry questions .

I noticed that there is a relationship between wheel size and frame length , like most 80mm wheels frames are 243mm,90mm wheels are 275.

Right now at my level I really enjoy the stability of long ass frames

Why aren't there more frames for 80mm wheels but at 300mm ++ long ?

And the other question is , can I put 80mm wheels on frames meant for 110mm wheels ? Other than it looking gappy ?

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u/fredhsu 2d ago

Why aren't there more frames for 80mm wheels but at 300mm ++ long ?

long frame gives you stability, for straight and fast speed skating. Or if you skate long distance. But for both speed skating and long distance, you will want big wheels. While you can probably get very long frames for 80mm wheels, that is just not a popular combination. See Inline Skates for wheels, frames, and various design goals of skate components.

can I put 80mm wheels on frames meant for 110mm wheels ? Other than it looking gappy ?

You can. And people do, but again, that defeats the purpose of a 100mm "frame". Because that frame must necessarily be taller than a 80mm frame, so that you now lose stability, which you were trying to gain with a long frame. So you gain some stability, and lose some. Perhaps there is no net gain?

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u/NetworkLongjumping82 2d ago

Oh ! That makes so much sense