Just an FYI. I know there's been lots of posts on this but I had parts in hand and took some pics so thought I would share. These are all for pre TBW bikes. The first pic shows my stock RKC bars on top, chrome reduced reach bars #56152-04B in middle, and chrome heritage bars #56623-99 on bottom. The specs/dimensions look quite different between the RR and heritage bars but as you can see the hand position is too close to matter. I installed the RR bars for the internal wiring. 2nd pic is RR bars installed, 3rd pic is older with stock bars. For a point of reference for bar height, compare brake reservoir to windshield bags.

 

those RR bars look sharp

my FLHRC came with these aftermarket bars in the Attached pic .

not sure what they are but very comfey after i tilted them a cpl inchs closer to me.

 

Sorry for reviving an old thread but wanted to thank the OP for posting this. Really helped for me to see the difference between the three. I have a 06 RK with stock bars and was thinking about getting the RR bars now I am pretty sure that's the way I am going.