This thread interests me...
For my K75S w/aluminum tank I bought a near new Mulitvario off Craig's for cheap[($50).
Problem was the bag is for a R1150R. My cobbler added 1 1/4" of leather to the back strap so that the front elastics was not singing tight. Costs $20.
Now the front edge rests on the tank because the curve is not as tight as the 1150's tank. So I add foam to the front where there was none before. Majic!
I used 3/8" square weather stripping neoprene. Several dots of adhesive silicone were used as well as the adhesive that is on the weather stripping. I use 4 lengths 2 wide and 2 high to make the plot 3/4" x 3/4". Works for me as the neoprene foam was at hand.
Note: This dense neoprene can be had at Ace Hardware.
Hope this helps. YMMV
Last edited by johnpeter; Jun 2nd, 2008 at 8:36 pm.