Originally Posted by
hachi_kid
I'll just buy a fixed/SS wheel, and install an 8 speed cassette in place of the sprocket. is that doable? I might save a bit of money that way.
That generally won't work because the axle spacing will be wrong and there's no way a cassette will work. A 5 speed freewheel might work, some flip flop rear hubs have a freewheel thread. Think of this bike as a learning experience.