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Duggram
| Posted on Tuesday, December 09, 2008 - 03:12 am: |
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With my organization the Heavy Twins class is run by superbike rules. Either tire, slick or DOT, can be run. Which tire would you run to get the best performance from an 1125? |
Smoke
| Posted on Tuesday, December 09, 2008 - 05:59 am: |
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slicks, no doubt. otherwise you will be at a disadvantage to the other racers. tim |
Sd26
| Posted on Tuesday, December 09, 2008 - 08:06 am: |
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From my perspective, I would say that it depends. A lot of slick development is in the 16.5 range. DOT race tire development is in the 17" range. I usually have access to some pre production stuff, and that's in a DOT 17". Occasionally, we'll have a slick thrown in that's something different. In practice, usually a slick will have more rubber. Not just because it doesn't have sipes but because they can have a thicker rubber. That can give you longer tire life for a couple reasons: more rubber to be used over more laps. Next, more rubber means that the tire will maintain its insulation of heat inside the tire for a longer period on a radial. Really, you should use your relationship with your trackside race tire supply guy to know which direction is the best for your racing program. Manufacturers have different directions on development. Personally, I've been a very regular Michelin guy. |
Eboos
| Posted on Tuesday, December 09, 2008 - 08:29 am: |
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Is that the only class that you will be running? Will you be in any classes requiring DOT tires? How long have you been riding on the track? Don't take this the wrong way, but if you are a newer racer/track rider, you may not even gain any advantage from running slicks. Race DOTs are excellent tires regardless of which manufacturer, and they could be had for @$40 cheaper per set. That would be like getting a 10% discount on your tires. SD26, in 8-10 lap sprint races, wouldn't you be more concerned about heat cycles then having your tire overheating before race finish? |
Sd26
| Posted on Tuesday, December 09, 2008 - 09:02 am: |
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SD26, in 8-10 lap sprint races, wouldn't you be more concerned about heat cycles then having your tire overheating before race finish? After about two hard races of 8-10 laps, a rear tire isn't going to put down fast enough laps for me. I'm going to rotate that one out for a Friday practice tire. For me, the tire is done well before it ever heat cycles. Fronts for me last longer. I might use up two to three rears for each front. Radials generally don't "overheat". Maybe if you're putting 150 to 200HP spinning on the banks of Daytona in sixth. Usually, the problem is that they won't hold heat anymore as the rubber is gone and there is no way to hold in heat. Tire just never works. A tire warmer will help it for a couple laps, but the heat leaves and then the tire slides around. Used a lot of really used up tires in my schools over the years. Stuff that the rubber was worn to where there wasn't any sipes left. With warmers, they work decent for a few laps but go down hill after that. No my recommendation to someone new, but it was an economical alternative for us. |
Eboos
| Posted on Tuesday, December 09, 2008 - 09:14 am: |
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quote:After about two hard races of 8-10 laps, a rear tire isn't going to put down fast enough laps for me. I'm going to rotate that one out for a Friday practice tire.
That is just one of the differences between a second year Novice and a seasoned Expert. I am getting about 6 races out of my tires. |
Eboos
| Posted on Tuesday, December 09, 2008 - 09:38 am: |
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Pirelli race tire prices 120/70 R17 - 180/55 R17 Diablo Superbike slicks $419 per set Diablo Supercorsa DOTs $386 per set Diablo Rains $425 per set |
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