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is it a terrible idea to try and build a 20” set as a first go?
No. Given the likely component choices, small wheels have much more latitude for build errors while remaining usable than large ones. Just don't try 36H 4X om a 20" rim unless you know what you're letting yourself in for.
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Ooh. Go for a brakeless specific "aero" profile rear rim. They look so good
They can get pricey (for BMX rims) though
gbj_tester
psg1ben
@Ottomanotter
I’m going to try and build my first set of wheels, but the set I need at the mo are a 20” pair for a folding bike - is it a terrible idea to try and build a 20” set as a first go?!
If not, they’re for a Dahon Mu Uno folder, 120mm spaces at the back but I think 10mm axle? Want fixed gear at the back so was thinking of the Surly Ultra New hubset but I’m not sure they’ll fit. Also have no idea what 20” rims are good - only need braking surface on the front wheel.
Basically I have no idea what I’m doing and the search didn’t throw up any 20” fixed builds! Any help greatly appreciated!