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Its almost the end of the riding season in NYC, with temperatures in low 60's in the evening... It's sad that i can't 'comfortably' ride 365 days a year =(

In any event, just wanted to share my astonishment with tire temperature last night. It was the first time for these Pirelli Diablo's (about 1k miles on them) to see anything colder then 70-80F... and let me tell you - they barely warm up... even after half an hour of moderate turns on Southern State Pkwy i touched them and they were barely 'warm'. I will take a temperature guage next time to mesuare the temp....

Does anyone know what is the proper 'warmed up' temperature for these tires to grip well? Is it possible that they are not able to warm up enough to provide decent grip?

I haven't felt any difference in the way the front behaved, but the rear definitely skidded more then it usually did it in the warm weather.

What do you guys think ?
 

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You aren't going to "heat cycle" tires doing normal street riding, so don't expect them to get burning hot, particularly in colder weather. And normal street tires don't need to get burning hot to be effective, either.

While cold tires obviously have less traction than warm ones, remember that when it cools down the pavement also gets colder, and all of the contaminants, such as oil, antifreeze, tar, etc... on the roads become that much more slippery. You have to watch that in cold weather, particularly once it starts raining.

60 degrees isn't that cold though. I don't seem to have a problem in 50-60 degree weather once I've ridden a few miles.
 

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MrT is so correct. Remember up here in Cdn & many northern parts of the States often riders are riding at close to freezing temps to even freezing temps. Though later in the afternoon it might warm up a bit to something like 50F which we Cdns look upon as lovely riding weather.

My mix of Bridgestone to Michelin tyres seem fine with said colder temps & your specific tyres would probably be the same. So do not sweat for you are NOT road racing.
 
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