I had to replace the old rennsport front tyre with a Racetech front last tyre change, as the Rennsports were becoming hard to find. Glad I ddin't perservere with finding them either, as the new Racetech front tyre has impressed me even more than the Metzler M3 rear I usually run.
The current front tyre has done over 10,000klms now, and I still reckon I could coax another 2 or 3 from it before the wear markers are touching the ground.

The impressive thing is that the mileage has for the most part been done with 60kgs of gear on board. I am tempted to try a racetech front and Rear next tyre change???
As far as grip goes, well I certainly couldn't fault them. They turn well, are stable and grippy. They handle bumps and crappy surfaces as well as dirt roads. They grip well from cold and are Ok in the wet despite what they look like!
"I hate to advocate drugs, alcohol, violence or insanity to anyone, but they've always worked for me" Hunter S. Thompson.
There are really only two questions in life. 1.Which way do i go? 2.What is the lap record?