How do you mount your bike?
I'm reading a old bicycling book from the '90s and it says the way I always mounted my bike can "wrench" the frame.
The way I've always done it is: hands on bar, left foot on left pedal, stand on pedal and as bike begins to roll swing right leg over rear tire and place right foot on right pedal and start riding.
But the book says stand astride the bike first. Place foot in pedal and then start pedaling.
And can somebody describe a "wrenched" frame for me so I know what to look for when shopping for a used bike?