Anyone else running Pirelli Sport Demons on his/her C10?

[Charliedog]

The reason I ask is I just installed a set on my 2000, and the ride is rather lumpy at 45-50 mph.  It gets better at 55-60, but especially at 45 it feels like the rear tire is filled with cement.  I even broke it down, re-seated it and re-balanced it, no change.

I noticed the tires are four ply tread and sidewalls-the rear nylon and the front polyester.  Could that explain the really harsh ride?  TIA

[Bob Young]

I'm going to follow this thread as my '86 is due for a tire change. With the limited tire choices for the older c10's, the Sport Demons were tires I was considering.

[Engraverwilliam]

I run the Perellis. I haven't really noticed the bumpiness you describe. They DO sometimes grab a rain grooves on the freeway. Not constant just sometimes out of the blue. Enough to wake you up. They hang nice going on the On-ramps. (The only twisties I get unfortunately)

[DeansZG]

  Never noticed the lumpiness..although it was '07 when I had one as a rear rim protector, so memory may fail me for ride smoothness...
 That said, I did notice a little sidewall flexing when pushed hard in the fast sweepers transitioning from left to right & vice-versa....
 The tire was grippy enough that I almost scraped the bags hustling along WVa Rt20 on the return trip from the National at Canaan that year. IIRC, the tire lasted around 9.5k miles too!

[Furbo]

I ran a set of them a couple years back. No drama, good tire. Just like the Avon offerings much better.

[Daytona_Mike]

Why not find an old used  mean streak rear wheel and do the conversion. The tire choices are fantastic and the handling is greatly improved. Such a a low cost upgrade and easy to do with massive benefits.
PR4GT's are perfect for the rear on this bike and you get good tread wear and massive grip too.

[2fast]

I've run the Sport Demons. No lumps for me, they handled just fine. They wear out in 5K just like every other tire that has decent grip and handling.