Originally Posted by MacG

the pretzel bit was an exaggeration, but I still question the intelligence of intentionally applying far more force than can be created while pedaling you your expensive frame, wheel bearings, axle, and dropouts/fork ends. If you just find a good chainwhip that has a handle as long as the radius of your wheel, you can easily apply just as much force as you can with rotaflexing without needlessly stressing all those expensive precision parts that weren't designed to be used that way.

You can make a chainwhip with a piece of barstock, a drill, and some old chain. Much cheaper than potentially bending an axle or messing up the alignment of your stays.

And I am the hulk, thank you.