OK. I just made the story up>

 

On an 07 you will need to change the belt when going to 30 teeth primary. The snail cams can't adjust enough.. Not an easy solution.. IIRC there are pulleys without the IDS that can be used.. Not sure there are any other options.. I went 30T / shorter belt.

 

Have you done the conversion or did you read it somewhere?...no need to get wound up, I just said it was the first I've heard of it....anyway searched the Touring section for 68T and this is what I've found...if you want IDS you need a rear pulley off of a Japanese Sportster. So in my case this would have indeed been the wrong pulley, good thing I didn't take you at your word eh? Otherwise the pulleys that come up are 40350-07 black or 40352-07 silver.

Thanks to nvsteve and all who replied.

P.S. forgot to mention, apparently you have to change the pulley bolts to 7/16" X 2"

 

If you can use a regular pulley I have one but a 1" x 70 tooth. Sent you a pm.

 

Go back and read from the beginning, eh.
07 Ultra. I first switched to the IDS system with the 66T pulley. The IDS is a good modification. The 68T 2007 Japanese Sportster pulley is the one I have now. If you don't have IDS I believe the 2007 U.S. Sportster pulley is what you want.