The rear brake pedal on my 2008 Ultra 105 annv. started to get head the first time I press it when I started it up it will work ok after that. Doing it every time I first start up...has this happen to anyone? Thanks

 

Check behind the exhaust pipe where the pedal attaches, maybe rubbing on something

 

I'd be more suspect of the piston/seals in the master cylinder going bad.

Has the brake fluid been changed before?

How does the pedal feel while riding, is it firm and does it hold pressure?

 

Feels normal when riding or right after I press it for the first time after I turn it on. Thanks for the info.....