When I had my 2000 Heritage I ground the rear ends of the boards off almost to the ruber insert.
My 2003 deuceI wore the bottom of the brake lever off so it was flat.
My 07 custom I grind the right foot peg quite often.
We ride on the other side of the road.
One reson I have no desire to lower my bikes.

 

I ground mine on my Heritage all the way through the rubber insert. You will know when you are into the frame/floorboard supports. You can feel the back end loosing traction. I would check the service manual for the torque values on the boards. I removed mine frequently and installed drag bolts(#8 nut/bolt) in an attempt to prevent further damage. If the boardswere put on too tight there is a difference.

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I grind mine all the time here in florida. hell I'm on my second set.

 

I just figured they were the "oh ****" floor boards. When they scrape the ground that meant far enough.

Scares the crap out of me everytime though.....

 

Just like the others - happens frequently to me too - never a major issue.

 

Mine grind every single day on my way to and from work. Scared the **** out of me at first, but now it puts a big grin on my face. I'm seriously considering welding some Ti bar under the boards to make sparks. It's the 2nd best sound my bike makes. The first are my Shortshots...

 

It hasn't been mentioned, but it seems to me that the bolts from the MoCo that are used to hold the boards on also seem to be designed to snap under pressure.

I like the idea of welding a bar on the underside for sparks -- Has anyone ever seen this done?

 

Yep, scraping is just part of the ride. Only with my bike it's usually the exhaust scraping first

 

I'd like to see how a person would attach a bar under the floorboards. I scraped my floorboard on my 'bones' turning on a frontage road to go have a beer with a buddy, and it surprised the **** outta me. I started to laugh.

 

You may want to have your shocks adjusted up also.
The bikes come out of the factory rated for 185# rider.
I'm 275 and after a couple of times I took it in when it needed it's warrenty check and had it adjusted.
If they try to tellyou it is an hours labor, just tell them it should of been done at the prep before they turned it over to you at sell.
Any way it solved that problem and drastically improved the ride. My Kidneys can attest to that.