Max as of March 3rd, 2013. The seat post is in a newly lowered, set back position. I've replaced the springer forks with mountain bike forks. I also added some very powerful lights. I now have a machine I trust. She can ride up hills I cannot pedal up with my road bike in the lowest gear. Let's see... I also figured out the proper technique for double nutting. The exhaust and the motor mounts do NOT shake loose.