Join Date: Jun 2008
Location: Edmonton AB
Motorcycle: 2014 675R, 2019 Husky TE300i, 2014 Grom. Yes, Grom, fuck you, it's fun.
Re: Metzeler Compk Slick
Metzeler is a quality brand and that price looks pretty damned good.
From interacting with you, I think you are from Canada, so I will tell you to call the retailer to make sure that they will ship them to Canada. A lot of places won't ship tires internationally.
As for warmers, no tire NEEDS a warmer. You just put a couple laps on them before giving it the beans. The benefit of warmers is holding the heat in. You may notice that a tire that is heat cycled a lot will turn blueish and that's oils seeping out, making the tire hard. If you run warmers, you're looking at one heat cycle in a day vs 8 or 10 and the tire will perform better next time out. At the end of the day and you are packing up, put the warmers on, but don't plug them in to let the tire cool more slowly, too.
One way to see if your holding temps in a tire is to measure the pressures after they are on the warmers for 45 minutes and then measure the pressure IMMEDIATELY after a session, BEFORE you take off your helmet and gloves. If the pressures are the same, they are holding heat. If the pressure is lower coming off track, you are going too slow to hold that heat. That being said, if your warmers keep the tire at 180 degrees and you are at 160 degrees coming off the track, that is NOT a heat cycle.
"A girl phoned me and said, "Come on over. There's nobody home." I went over. Nobody was home!"