Re: My 250 in the mountains
 

Everything in moderation!
Study the inside of your helmet just for a second. The really soft part of the lining is more for comfort than protection. The protective layer isn't that soft.
So, no, it shouldn't be a problem unless the "post" comes to a point or sharp edge........or maybe you leave it parked there for MONTHS.

P.S. Except for parking it on the sissy-bar backrest occasionally, I prefer to hang mine by the strap. I think it ventilates better that way......but you gotta check for collected "foreign matter" before putting it on again. :cry: