[Kelly]

i have these tires on my 929,
i ride around town a few days outs the week and outta town/mountains on the weekends.

i heard some people talking abou them and siad it is not good for them to go through "to many" (not sure how many is to many) heat cycles. they were saying that it will make them harden up. basically saying that after so many heat cycles they will get hard and become "not" sticky.

does anyone have any info on this?
i dont want to ride on tires i dont trust,
i figured you race guys would know best.

thanks for you time and help
kelly

[NinerPilot]

What are "these tires"? If you run race rubber on the street, they will cycle out before they wear out unless you only hit the twisties when you ride. If you commute, ride around town, etc, you will heat cycle them more often and they will harden quicker. Most race rubber is judged not only by wear, but how many heat cycles on them.
Chris

[Kelly]

Originally Posted by NinerPilot

What are "these tires"? If you run race rubber on the street, they will cycle out before they wear out unless you only hit the twisties when you ride. If you commute, ride around town, etc, you will heat cycle them more often and they will harden quicker. Most race rubber is judged not only by wear, but how many heat cycles on them.
Chris

dammit,
i thought i put it in there...


they are pilot h2's

[CBR929RE]

Originally Posted by Kelly

dammit,
i thought i put it in there...


they are pilot h2's

I think the word you forgot there pilot RACE h2 is the key word there. race tires on the street where they aren't really meant for.

[NinerPilot]

Acctually the H2 is the Highway compund tire. You'll probably be ok, just check them from time to time. Any race tire, you want to be able to leave a mark in the tread with your fingernail (best hardness test I have heard).
Chris

[Kelly]

Originally Posted by NinerPilot

Acctually the H2 is the Highway compund tire. You'll probably be ok, just check them from time to time. Any race tire, you want to be able to leave a mark in the tread with your fingernail (best hardness test I have heard).
Chris

this is a good explanation, anyway you can expand on this?
please

[ccwilli3]

H2's stand up well to heat cycles... Having said that, they do require a good amount of heat to work well, so take that into consideration when riding.

[freq]

Originally Posted by ccwilli3

H2's stand up well to heat cycles... Having said that, they do require a good amount of heat to work well, so take that into consideration when riding.

I used these tires exclusively on my 929. Loved 'em.

What ccwilli3 said, .

[02FBlade]

A tire vendor once told me think about this....when you bake cookies and they are fresh out the oven...they are nice and gooie, stickie...once they cool what happens...they get hard. Warm them again and back to gooie, then they cool down....they are just a tad harder. So each heat cycle adds some hardness to the rubber. Can't say how many are too many....

Keep in mind on the street you will rarely get them up to true operating temps...around 175. But each ride will be a mini heat cycle. Not sure if the number of cycles is more important compaired to real hi temp cycles.

[abtech]

Heat cycling on street rubber has much less significance than on race rubber for several reasons. First, as someone else mentioned, you would rarely get street rubber up to race temps because:

1: They have a much heavier carcass, more belts and insulation.
2: They should be using much more air pressure than race tires (the higher air pressure keeps the temperatures down).

Street compounds don't have near as many oils in them which makes them harder from the start, but less prone to shedding rubber or getting hard due to heat cycling.

Race compounds are designed for grip above all else (and usually trade off quite a bit of strength, durability and straight line stability in the process).

All tires will become brittle with age, although race compounds are much more susceptable to "going off" from age than street tires are. Every manufacturer that I know of marks their tires with the lot and date of manufacture. I wouldn't buy a street tire that was more than 18 months old and I wouldn't buy a race tire that was more than 2 months old or you are not only getting something that has already begun to deteriate (in relative terms), but you are probably getting old technology in the bargain. I know that Michelin, Dunlop, Bridgestone and Metzeler/Pirelli often change designs, compounds, carcass design and belt overlap angles several times within a single season, so while that set of Pilots for 200 bucks may seem like a bargain, chances are they are several "design changes" old (and probably developing osteoporosis as we speak).

[Kelly]

wow,
great info,
this is just what im looking for.

thanks for all the help, you guys on this site kick ass! straight answers and no flamin the newbie (in relative terms, of course)

Thanks again!

[CBR929RE]

Originally Posted by Kelly

wow,
great info,
this is just what im looking for.

thanks for all the help, you guys on this site kick ass! straight answers and no flamin the newbie (in relative terms, of course)

Thanks again!

haha thats cause you haven't made any mistakes like stunnin

[Kelly]

Originally Posted by CBR929RE

haha thats cause you haven't made any mistakes like stunnin

http://img.photobucket.com/albums/v3...c/DSC01012.jpg

[Kelly]

not gonna do it on my 929, i got a old skool f3 for that.

i wanna turn my 929 into a track .. mostly... bike