I know tires bluing from excessive wear is bad. What if they're a little blue from sitting in a cold garage all winter?
You cant judge a tire on color alone . How much rubber is left ? How many heat cycles ? What tire /compound ? I would be a little blue if I was left in the garage all winter too :mrgreen:
I've heard of tires and I've seen roughed up tires, but what exactly doe's blued tires look like???? I'm sure they are blue of course, but doe's anyone have pictures???? That way myself or some other might know what to look for. Thanks. :?:
If your 208s are the street compound you may want to up grade soon . Some Pilot Powers or Pilot Race, even an M2 would be better . Too many variables ,How hard did you ride them ? what track ? Three days at Putnam will wear much more than three days at Road America . Look for the wear blocks in the tread ,is the rubber noticably harder than a new set .Does the tire have a round or a flat profile ? Compare them to a new tire .side by side The more heat cycles a tire has the longer it will take to come in . The bluing is just a blueish hue that shows up 24-36 hours after a tire has been run hard .
I've heard race compounds aren't formulated to handle extended exposure to cold temperatures. They don't contain additives that street tires have for cold weather use, since they generally aren't used in really cold weather. I would at least see if they feel noticeably harder than a new tire. The old fingernail test might be sufficient, but a durometer gauge of some sort would obviously be more accurate. In the end, new tires are cheaper than new bodywork, hand/foot controls, etc.
From what I understand blue tires are not good. It has to do with how many heat cycles they have through. But why they are blue from your garage and cold? No clue. My philosophy would be, if in doubt - replace them.
I had a set of 208's gp's that had 1 day with warmers on them last year the edges were blueing that day. I ran 2 days advance at putnam with no issue last month. They were just as good as they were the first day I used them. I think the 208s GP's Blue faster then most maybee isn't a big deal to me they stilll had the same feel. Have fun and listen to your tires. Smiley
So, I did a search and found this thread. I was curriouis about the fact that blued tires are a no-no in tech inspection. Is that really the only criteria? If there's some bluing they're no good? Tires can blue up after one good track day. It's surface oxidation. Couple laps around the track, you wear off that layer, and you're good to go. The real question is do they heat up and get stickly like they should, and you can't judge that just by looking at them; blue or not blue. Point being, I don't want to show up with slightly blue chicken strips at tech inspection and be told I have to buy new tires. So, what are the facts regarding this policy?
Bluing DOES NOT EFFECT TRACTION.....Tire wear does.....DOT race tires have more heat cycles than you'll know what to do with. Tires will be worn out before ..so called heat cycles .
This is not accurate . I have a stack of front tires that I am afraid to use . They look great ,but they are not . If you would like me to send you a pic of me pushing the front I will . And that tire had three days on it . In my case the heat cycles did the tires in before actual tire wear .
I'd just like to know, if my tires have some bluing on them along the edges, will they or will they not pass tech inspection? I'm not trying to start an argument here. I just want to verify what the official policy is. Maybe someone that does tech inspection would like to chime in here? Thanks.
Tires can actually blue after one heat cycle - even if they are newly manufactured. If you really want to know how your tires are doing buy a durometer and keep track of how they harden over use and time. Also, just because a tire is 'newly purchased' doesn't mean it's new - check the manufacture date right there on the sidewall of each one - you'll be surprised at how 'new' they aren't...
I slide both tires thru the corrners WITH knee scrapping . So pushing the front tire through a cornner Your suspension or body position needs work.
What exactly gave you that impression? I've never heard of such a thing. Brand new tires could blue if pushed hard & then parked for a while, especially if it's cold while they are parked. I can't imagine they wouldn't pass tech the next time you wanted to use them, at least with STT.
http://www.sportbiketracktime.com/policies.html#bikeprep Item #2. "Any tires that are bluing from excessive wear will be disallowed."