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Bike frame sizes

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gords:
How are mountain bike frames measured these days? Is it the same across all manufacturers?

pritch:
There is absolutely no standard way of doing it, unfortunately.  For example, my 19" Orange is pretty much the same as my mate's 16" GT.  The only way to really tell is to sling your leg over the bike.

gords:

--- Quote from: "pritch" ---The only way to really tell is to sling your leg over the bike.
--- End quote ---

Umm, slightly difficult if I'm looking at something on ebay and it's the other end of the country :roll:

I've found a couple of sites that give ways of working it out

--- Quote ---You can get a rough idea of the size of frame you require if you measure your inside leg - crotch to floor - then subtract 9" / 23cm or 10" / 25cm for a road bike (or a mountain bike used as a road bike) or 12" / 30cm for an athletically-ridden mountain bike. Hence a rider with a 32" / 81cm inside leg who owns a 23" / 58cm road bike usually requires a 20" / 51cm mountain bike.
--- End quote ---


So I'd guess at a 20" frame as I'm 5" 8' / 32" inside leg ...

Manicminer:
Watch out in case you mix up frame size with wheel size.

I am looking for a bike for myself and it looks like I need a 26" frame with 20" wheels

gords:

--- Quote from: "M Thomas" ---it looks like I need a 26" frame with 20" wheels
--- End quote ---

Shouldn't that be the other way round? :?

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