Join Date: Feb 2005
Location: Little Village, Chicago, IL
Bikes: Lots. Mostly steel. Mostly heavy. Mostly geared, and very low, at that.
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I would imagine that the wider spider (whee! a rhyme!) gives a bit more stiffness. The arms are more substantial than the ring, which would give you less flex.
To answer the OP's question, no, I don't think there are any cheapies. I've had lots of problems finding a decent 1/8" ring in 110/130. I have on order a TA ring which should do well for my beater. It's 130 bcd AND 1/8", so it should solve my problems.
If you really want a track crank, expect to pay track crank prices. There's a reason they cost as much as they do. THEY'RE WORTH IT!!!!
Philosophy and feelings don't change the laws of physics