by Paul H » Mon Mar 23, 2009 11:35 pm
Your honour, Im not finished.
[quote]Over gearing puts undue stresses on growing bones and joints, not the muscles.
More than running which all children do? What puts more stress on the bones - Jack doing 35mph, 250w, 100rpm going downhill in 53x12 or doing 450w, 80rpm in a legal gear when we are going up hill? Gear restrictions therefore make no difference to the stress on bones.
[quote] Some things have changed over 100 years, but not the interaction of the laws of physics on those of biology.
Our understanding of physics and biology has moved on quite a bit - not to mention the quality of bikes.