Re: Aluminum Frame or Steel Frame?
My favorite bike is an old non triple triangle GT MTB, its cro-moly.
My 70's Speedwell is only High Tensile, but its quality frame with brazed lugs.
Cro-moly bikes are out there, a few tips for identifying them.
Look for an Old Shcool name brand, like GT, Mongoose, Diamond Back or older high end Huffy or Schwinn. It will have quality alloy cycle parts and a three piece crank.
It needs to be from the '80's or early '90's.
It will have 1.125" or so tube sizes.
When tapped with a screwdriver or such it will ring like crystal.
A mild steel bike with thud like glass.
The ride of a nice CroMoly bike is a feeling of stiffness and control compared to the muddy, flexing and twisting feeling of uncertantity with a bike made from gas pipe.
There are nice steel bikes around, but not made in recent times.