Hanging off as much as some of the guys in the pics in that thread on the R1 Forum will attract law enforcement's attention.
My first question to people interested in that topic would be "Why do you want to get your knee down?".
Formerly MRA #211 - High Precision Racing
"A strict observance of the written laws is doubtless one of the high duties of a good citizen, but it is not the highest. The laws of necessity, of self- preservation, of saving our country when in danger, are of higher obligation. To lose our country by a scrupulous adherence to written law would be to lose the law itself, with life, liberty, property, and all those who are enjoying them with us; thus absurdly sacrificing the end to the means."
--Thomas Jefferson