What am I doing wrong with my tires - Page 3 - BMW S1000RR Forums: BMW Sportbike Forum
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post #21 of 32 (permalink) Old 02-20-2019, 03:17 PM
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When I raced on Pirellis, the rear was set at 18lbs cold. That is definitely cold tear. It comes from tire not up to temp, and you are hamfisting the throttle.

Smoother throttle application, tire warmers, and lower PSI will all help.
Also you may need to see Barry at KFG to set your suspension settings. Ive had plenty of race day tires look like that.

The ridge is pretty tight in places, and has some high speed sweepers that will tear up a tire.

Again, get with Barry, he can help you.
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post #22 of 32 (permalink) Old 07-01-2019, 01:37 AM
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I’d chat up the tire rep at the track. They’ve done wonders for me.

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post #23 of 32 (permalink) Old 07-01-2019, 01:52 AM
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Its cold tear as others pointed out.

Provided you use correct rear pressure, tire doesn't stay long enough on tarmac to properly heat up.

What is your shock rebound and compression settings ?
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post #24 of 32 (permalink) Old 07-01-2019, 06:28 PM
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This: Lifeatlean.com. All of your answers will be here. Print it and take it to the track with you.
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post #25 of 32 (permalink) Old 07-16-2019, 12:28 AM Thread Starter
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OP here, just wanted to share an small update on the issue.

For this track season I switched to Supercorsa TDs and got tire warmers. I'm also religiously maintaining pressures as prescribed by the manufacturer.

Below is my rear tire after 2 days at the Ridge. My pace is the same, cruising at around 1:55 laps on average, sometimes a bit faster.

It is in a much better shape to the one in the original post, sides are on markers, so I'd need to change it.

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post #26 of 32 (permalink) Old 07-16-2019, 01:06 AM
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Great improvement!
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post #27 of 32 (permalink) Old 07-16-2019, 08:35 AM
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Excellent. Warmers really are worth it even though they can be a hassle. No reason not to go to slicks now - they will last longer.
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post #28 of 32 (permalink) Old 07-17-2019, 03:25 AM Thread Starter
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Thanks, I can see slicks in my future, but for now trying to stay on DOTs for as long as possible. I'm commuting to work on the bike, have a spare set of wheels for street use but swapping them every weekend is too much effort.
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post #29 of 32 (permalink) Old 07-17-2019, 04:50 AM
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Quote:
Originally Posted by code_monkey View Post
Thanks, I can see slicks in my future, but for now trying to stay on DOTs for as long as possible. I'm commuting to work on the bike, have a spare set of wheels for street use but swapping them every weekend is too much effort.
It takes ~30 seconds to swap the rear, and ~120 seconds to swap the front, if you take it easy.
So 2.5 minutes... too much effort?
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post #30 of 32 (permalink) Old 07-18-2019, 03:09 AM Thread Starter
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Originally Posted by speedfinn View Post
So 2.5 minutes... too much effort?
lol, it takes me this much time just to decide which wheel should I swap first

I'd say I would typically spend around 30 minutes to change the wheels, and I do it, may be, once or twice a month, so quite frequently. There is obviously some room for improvement there but 2.5 minutes doesn't sound realistic.
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