Author Topic: I HEAR SHAVED TIRES ONLY ON STREETBIKES (Read 14121 times) Tweet

THEMOTORHEAD · « **on:** May 24, 2004, 01:12:16 AM »

IS IT TRUE?
IF IT IS
WHATS ITS FOUNDATION?

VincentHill · « **Reply #1 on:** May 24, 2004, 10:09:57 AM »

"WHERE"?? WHO??

JACKD · « **Reply #2 on:** May 24, 2004, 10:58:45 AM »

Tires react to preparation and running conditions. I don't think they should be brought into the Street Bike duscussion.

FastGixx · « **Reply #3 on:** May 24, 2004, 11:09:16 AM »

ECTA MOTORCYCLE RULES - ADDENDUM
EFFECTIVE MARCH 27TH 2004.

TIRE REQUIREMENTS:

Tire speed ratig for ZR rated tires will temporarily be increased to 225 mph, and if shaved per this article will be increased to 250 mph. Every motorcycle exceeding 200 mph is required to report to impound for technical re-inspection after each successful run, whether a record has been made or not.

additional addendums are on the ECTA web page.

www.ecta-lsr.com

This info came off the newsletter that i recieved in the mail. What exactly do they mean by "shaved"? Do they measure tread depth? What process will they use to determin that the tires have been shaved properly.

VincentHill · « **Reply #4 on:** May 24, 2004, 12:02:24 PM »

Thanks FastG. SInce I joined late and have yet to look at the package, this is all news to me

I am glad that someone is keeping an eye on the store (Thanks Motorhead)

JorNic Motorsports · « **Reply #5 on:** May 25, 2004, 12:29:41 AM »

what is the measuring tool for depth for shaving? even manufacturer to manufacturer to tread design to tread design.

cant any of these fucking organizations create these rules PRIOR to conceiving, editing, printing and distributing a rule book? I tell ya, it almost makes it worth finding a new sport.

VincentHill · « **Reply #6 on:** May 25, 2004, 08:07:54 AM »

3B, the little I know about the ECTA is that they bring a rule up just for the reasons you state. To Discuss and make plans to implement it. I have never seen a new rule strictly inforced the first meet it is in force. By years end and all of the pros and cans have been dealt with then the next year everyone knows what to expect!

FastGixx · « **Reply #7 on:** May 25, 2004, 11:19:53 AM »

i htink that tire rule is a buncha crap.

so nobody can answer our questions as it seems.. do they expect you to drive down there with plans on racing without knowing the details? They make a rule like that but do not give any more information.

who has legitimate info that says a shaved tire is better on asphalt than a non shaved? How about just a worn out tire with little tread? Can i use one of those with plans to see well over 225 mph?

JorNic Motorsports · « **Reply #8 on:** May 25, 2004, 12:03:14 PM »

I was refering to the leathers issues at Bonneville that continue to go understood and now mis season another group wants additional changes. Just frustrating to newbies trying to understand the game.

An example over here is a group called the NMRA. www.nmraonline.com Racers are falling from this org like flies the past few years becasue they can not organize properly. Rules changes being developed between races. Racers showing up 1700 miles form home to find out their bike does not meet the newest subsection of rules for bodywork or such. I just hope as our bikes develop into faster and faster machines that the "seasoned" veteran rules makers better understand the technologies of today instead of relying on antiquated information to create rules that are not appropriate to this new budgeoning platform; 250mph, 500hp streetbikes.

VincentHill · « **Reply #9 on:** May 25, 2004, 04:49:49 PM »

Actually I do understand the tire rule. It is a lot easier to implement for cars than it is for bikes. My thinking is that no one is making Land Speed Racing tires for Motorcycles that are designed to go 250 to 300 MPH. The more rubber on a tire, the more weight Centrifugal force has to help take it apart. By removing more rubber, there is less weight to pull the tire apart at serious high speeds. Before The Swing arms got wide (As in Scott Gutherie days at Daytona, we had to shave the side of the tire to clear the chain and swing arm.

We need to find a race shop that has the equipment to shave the sides of the thread more than the center so that we have some rubber "To Burn" and none extra trying to take the tire apart. Remember, these tires were designed for a max speed of 200 MPH short time and 186 mph longer time. They were never designed for 220 to 250 "Anytime" I rather them address this now than "After the fact".

As for "Leathers at Bonneville", what can anyone say? I have a 20 year old leather suit that meets all of their requirements and a less than 1 year old suit that is made out of leather 30% thicker and a lot more padding and because it has a "FEW" holes and some Kevalar where no one has so far been able to scrape, it cannot be used!

JorNic Motorsports · « **Reply #10 on:** May 25, 2004, 06:36:02 PM »

I certainly see your point about tires. And to my knowledge (which aint a lot) there are no current manufacturers making above ZR rating which is to 199 for two wheelers. Correct? Scott Guthrie makes this point pretty clear and sounds as if there is no help coming by way of any manufacturers any time soon.

As for rules; aint that what the off season is for?

TurboBlew · « **Reply #11 on:** May 25, 2004, 09:32:16 PM »

Who takes the NMRA serious??

Quote from: 3B or BBB

I was refering to the leathers issues at Bonneville that continue to go understood and now mis season another group wants additional changes. Just frustrating to newbies trying to understand the game.

An example over here is a group called the NMRA. www.nmraonline.com Racers are falling from this org like flies the past few years becasue they can not organize properly. ...

JorNic Motorsports · « **Reply #12 on:** May 25, 2004, 10:06:04 PM »

when they are the only game in town, I had no choice. Now, I'd rather go gameless.

SPEED KING · « **Reply #13 on:** May 25, 2004, 10:52:58 PM »

Dont forget that N.M.R.A.
stands for No Motorcycles Racing Again

JorNic Motorsports · « **Reply #14 on:** May 25, 2004, 10:57:37 PM »

got that right.
cant blame the racers that continue to show.
its the lack of commitment by the owners.

SPEED KING · « **Reply #15 on:** May 26, 2004, 12:14:57 AM »

Quote from: 3B or BBB

got that right.
cant blame the racers that continue to show.
its the lack of commitment by the owners.

JACKD · « **Reply #16 on:** May 26, 2004, 12:48:24 AM »

A lot of xxRA groups have come and gone. It is usually a case of not enough people trying to do too much for too long and they get burnt out.
The tough part is knowing when to get out and hand it off to others before you kill it. A fresh start should not have to begin from the bottom and like/believe it or not it will go on without you.
If you are sincere, you will quietly support it and not try to hold everybody's hand.
Senior Citizens Timing Association reinvents it's self every 10 years or so. That way the new blood can feel like they have solved all the same old problems again with their own fresh ideas. They get more into the organization than the production. Maxton is a young organization that generates a lot of runs for the customer. At El Mirage they were limited to 1 run last time. A little of the meeting time should be used to improve the running conditions and spend the money on improvements to the land available instead of purchase storage for too much stuff.

FastGixx · « **Reply #17 on:** May 26, 2004, 05:53:01 PM »

yep.. rule changes always suck..

what i need to know is, when i show up at maxton this june with plans to run over 225 mph, exactly how should i be prepared with my tires on the bike?

what exactly is the tech inspector going to do to determin that my tires are fit for speed?

firemanjim · « **Reply #18 on:** May 27, 2004, 12:54:59 PM »

And who in the hell can find anyone who shaves motorcycle tires anyway?

VincentHill · « **Reply #19 on:** May 27, 2004, 05:05:12 PM »

http://www.tirerack.com/tires/tiretech/competition/shaving.jsp

Don Vesco Streamliner had to even shave the race tires they got from Goodyear that were for 300 MPH Read below.

"Royal Purple's tires are Goodyear Front Runners. The rears measure 25x4.5x15 inches, while the fronts are 21x5x15 inches. Using nitrogen, the rears are pumped up to 70 psi. Though the tires are rated to 300 mph by Goodyear with the 0.140-inch tread depth they come with, the Nish team discovered that they would start throwing rubber at very high speeds. To solve this problem, they shaved the tires to a tread depth of 0.060 to 0.070 inches.

I am looking for a place to shave Bike tires because there are some places that shave car tires already. I will post what i find. I printed this because this is a real problem and we need to have this before it has us

JACKD · « **Reply #20 on:** May 27, 2004, 06:44:51 PM »

The Don Vesco bike liner did not shave the LSR tires provided by Goodyear. They were purpose built and compare to the front tires used on Top Fuel cars today after Shirley's crash in Canada. Otherwise the information about the requirement to shave tires is correct for the Frontrunner used on the car.
Your sanction body should be able to help you along with the information about suitable tire preparation. Don't be afraid to ask them directly and report bck with your findings. You won't find the answer here but it is a great place to share information about where to find out for yourself.

firemanjim · « **Reply #21 on:** May 28, 2004, 01:44:17 AM »

"Your sanction body should be able to help you along with the information about suitable tire preparation"----that's a wonderful idea,too bad they will not have a clue where we can get it done--or even if anyone can do it---some of the rules seem to have no connection to reality,kinda like the new rule on leathers.

VincentHill · « **Reply #22 on:** May 30, 2004, 09:17:25 AM »

I do not know if this is related, but a rear tire was involved!

I just received a phone call from my team mates at
maxton .................yesterday afternoon around 4:30 pm T.J
CANNON went down on a hyabusa motorcycle , apparently he went down
at the timing traps and it is speculated that his rear tire went
flat. T.J has ( according to my team mates ) at least a broken hand
and foot but news is sketchy to say the least .

dont take any of the details here as gospel but rather i am posting
here so anyone that wishes can say a little prayer for him and his
family.

don t.
snartracing.com

Hank · « **Reply #23 on:** May 30, 2004, 09:41:33 AM »

Nate Jones does tire shaving.He is in the SCTA rulebook.

VincentHill · « **Reply #24 on:** May 30, 2004, 10:08:32 AM »

Quote from: Hank

Nate Jones does tire shaving.He is in the SCTA rulebook.

Perfect! I will see what he has to say and the price and time! Thanks a lot!

Hank · « **Reply #25 on:** May 30, 2004, 10:14:29 AM »

Glad I could help Vince.Nate is a nice guy with some very impressive credentials.He even did the tires on the fastest record holding open wheel motorcycle at Bonneville.

TurboBlew · « **Reply #26 on:** May 31, 2004, 12:34:19 AM »

So is the point to shave the side tread....and only leave the center portion?

Do you start with a good roadrace tire and send it off?

THEMOTORHEAD · « **Reply #27 on:** May 31, 2004, 06:53:38 AM »

its to help disipate heat
which in 1 mile i have never seen a problem with
the salt spins alot and causes heat
never liked shaved bike tires

VincentHill · « **Reply #28 on:** May 31, 2004, 09:41:47 AM »

Didn't Walter Schafer ride either a BSA ot Triumph in the early 70's at Daytona?

News:

Author Topic: I HEAR SHAVED TIRES ONLY ON STREETBIKES (Read 14121 times) Tweet

THEMOTORHEAD

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