I didn't believe you about the frame material... I wouldn't have guessed the bikes had a different frame between the 3 and 8 speed. But the website clearly states hi-ten for the 3 and 4130 chromoly for the 8. That's a nice upgrade.
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Genesis 49:16-17
"Well, well!" said Holmes, impatiently. "A good cyclist does not need a high road. The moor is intersected with paths and the moon is at the full."