Correctly and incorrectly mounting a bicycle I am very fond of mouting bicycles this way:

Stand to the left of the bike.

Put the left foot on the left pedal.

Push forward with the right foot to set the bike in motion.

Swing the right leg over the back of the saddle, sitting on it as the
move is carried out.


You can see it at 0:51 in this video.
However, Sheldon Brown advises against that technique, which he calls
&quot;the cowboy monut&quot;:

The cowboy mount places the rider's weight on the bicycle while it is
leaning over at a sharp angle. This puts considerable lateral stress on the
frame and the wheels. Bicycle wheels, in particular, are not designed to
withstand serious sideways stresses, and this poor mounting technique is
very hard on your wheels.

I don't have one tenth of Sheldon's expertise on bicycles,
but that explanation seems insufficient because

The angle involved in the cowboy mount is nearly perpendicular
to the ground (as the video shows).

On curves, bicycles are certainly subject to sharper angles than
on the cowboy mount.

Warning against &quot;sideway stresses&quot; sounds insubstantial. I can't
imagine anything worse than a unbalance and subsequent fall happening.


Instead, Sheldon advises the rider to start by standing astride the frame.
Indeed, this provides
the most controlled start, especially in irregular or ascending terrain,
but it also takes more time to set off than the cowboy mount.
Assuming regular, flat terrain, are Sheldon Brown's arguments against
the cowboy mount solid and thus should the classical mount
(or maybe some other mount) be preferred, or is it exaggerated?
I do not buy the stressing argument, any sprint out of the saddle will stress many parts of your bike much more.
I would only be concerned with your stability during that mount and the risk of a fall in harder terrain when running. And the issue of possible slip of an unclipped left foot from a clipless pedal that may not support an unclipped foot enough - that depends on the type of your shoes and pedals.
The cyclocross mount that is most often taught is similar, but from the ground straight on the saddle. Only then you clip both of your feet. But if you dismounted with the usual technique to the left before, your cranks will be in the same position as you have them so if it is easier for you, I would continue using the cowboy mount.