I had to rewrite the post a bit because I was not clear. By locking against the handlebar I mean they seem to press the front part of the hip against the handlebar to add some support to push back with the leg against the pedal, and they seem to lock the cranks at almost 10pm position which makes the leg bend at a 90 degree angle.
I tried to position all my body weight on the front part of the bike but I don't seem to be able to push back against the pedal hard enough to lock it.
Are there any people based in London that could show me this trick?
I had to rewrite the post a bit because I was not clear. By locking against the handlebar I mean they seem to press the front part of the hip against the handlebar to add some support to push back with the leg against the pedal, and they seem to lock the cranks at almost 10pm position which makes the leg bend at a 90 degree angle.
I tried to position all my body weight on the front part of the bike but I don't seem to be able to push back against the pedal hard enough to lock it.
Are there any people based in London that could show me this trick?