Originally Posted by
Desert Ryder
Interested in this thread because I do have a spare bmx crank from my dumpster find bike. I'd use it on my Diamondback MTB bmx conversion. The DB has a square taper and the BMX is splined.
Is this a feasibe thing to do? I'm sure it'd be more economical to just get a square taper single but a project isn't always cost effective to get desired results
BMX axle set-up like this, 8 splines.

What I've found is I would need something like this...

Looks feasible to me. One of the ones I have looks like the one up top, but it's for an ashtabula/american bottom bracket, like beach cruisers typically have. It came off this funky Specialized bmx bike. Regular 3pc cranks are English bottom brackets. The other two are basically three piece american bb sets that use ashtabula chainrings.
I have a Giant Rincon mtb I converted to single speed, and I want to put one on it if I can find a 48t chain ring.