Join Date: Oct 2007
Location: SoCal (SF Valley) 91343
To add, I wish I could find the link, but there was a thread on another forum last year. A guy took the time to call a number of manufacturers, and most stated that they no longer use the mold release compound of old. One or two of the big name (can't recall if it was Bridgestone or Dunlop) said they still use it. The biggest thing to fear with new tires is "turning into the ground" by using the way you used to turn the old tires to turn the new tires. Simply put, the new ones are way more round, and require a lot less input to fall into a corner. WHereas your old ones may have taken some muscle, but you don't realize how much since you've had the same tires for a while, and it happens gradually. You should always take the time to learn how these tires react to your inputs before really getting on it.
The best way to really get a good "scrub" is to take your bike with the shiny new tires to an empty parking lot and do some lazy circles, getting progressively tighter while leaning your body to the outside of the turn, so you can get max lean angle. Go both ways or do figure 8's. I've done this with every new set of tires I've mounted up and have had zero issues. In fact, in all of my riding, I've only matched the wear in actual street riding that I put on when I "scrubbed" them. On my cruiser, there is still a line between where I've "gotten my lean on" on the street and where I scrubbed them in a parking olot. The advantage is that if there is any mold release/slick stuff/snot/grease/oil/whatever on the tire, it will be worn off fairly quickly, and in the safest possible way. A canyon road is no place to get that done. The timing of this post is funy becuase I need to mount up a new set of shoes on my Ninja, and was hoping to get that done this week, and you can bet I'll be doing circles on my street. I have the advantage of living on a cul-de-sac...