Thanks , like the one on the left but not sure how tall. 2011 street bob.
Jim

 

If you want it to support a back pack or similar for a back rest I would say 18" is a decent height. If that is your plan, set one on your bike and see how high it is from the bolt area on your detachables to the top of the pack.

I believe your width is 8-3/4" but please verify that before ordering.

http://hdcustomfab.com/onlinestore/i...products_id=10

 

Will do thanks.
Jim