Frame size Q

PB Forum :: BMX (20")
Frame size Q
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Posted: Sep 12, 2019 at 12:54 Quote
I'd love to hear your opinion about frame size choice, given these inputs:

5'6" tall
solid MTB rider (enduro/DH)
no BMX experience
priority is concrete bowls/halfpipe

I'm not fired up to learn techy tricks--I mostly want to be able to "flow" on vert terrain. It seems like a good ballpark size would be a 20.75" TT and 13.5" chainstay?

I understand that this is a preference thing, but coming from an enduro MTB, I'm not going to be able to quickly sort out the size that feels best, so I'm curious about other people's take.

THANKS. Moving to a new city with a convenient skatepark (Dundee, Scotland), and it seems like it would be fun MTB cross training and a chance to work on manuals, hops, pumping, etc.

Posted: Oct 17, 2019 at 18:56 Quote
For vert, diet jumps, and too keep a bmx feeling “flowey” especially if your coming off an mtb; id look for a bb height in the range of 11.5 to 11.6(no higher) and a chain stay length no shorter than 13.75”. The shorter the stay the “loopier” the bike will tend to be. Coming off mtb the bmx is gonna feel very quick to turn wheelie and manual. I recommend a frame designed for dirt jumps. Something like a S/M Credence.

Posted: Oct 17, 2019 at 18:57 Quote
Your 5’6”; so 20.5 to 20.75 seems like a good area to be in for a top tube length.

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