Disclaimer:  This following is for informational purposes only.  I am not responsible for what you do to your motorcycle or the results thereof.  This is not intended to be a step-by-step walkthrough.  Always use the service manual for procedures and torque specifications.  the following modification is not a "bolt-on" procedure and requires modification of OEM components.

Now that we got that crap out of the way...1st question...WHY?  Well the TLS, although it does share a lot of features with the TLR, did not inherit the stiffness of the TLR frame and swingarm.  The TLS has a habit of "wallowing" in the corners when applying the throttle at apex due to the torque the TL1000 motor puts out.  the TLR swingarm, with all of it's glorious bracing, will help by keeping the swingarm from twisting.

Since the swingarm pivot at the rear of the frame is the same between the 2 bikes, this swap is relatively easy, although it is not a "bolt on" type of modification.  I tried to take plenty of pictures throughout the swap.  Hopefully this will help anyone else considering this mod.