it is ALOT more stable than i thought it would be.... i had to trial and error with mounting to get it just right... at highway speeds when it is cold out, i can lean a little forward and it takes a bit of the wind off me. makes it a bit more bearable when i'm riding to work at 4 am. cant beat the price. the BMW version was just too much $. plus another $120 for mounting hardware. crazy!
Remember, street lights timed for 35 mph are also timed for 70 mph.