A little mishap. Any ideas

[mr8ball]

I have the 08 buss with the Bridgestone BO16 on the back and stock on the front with about 800 miles on it. I had a mishap the last time i was out. It was about 85 degrees and we had road about 100 miles. I was 2 up and we were in some pretty good twists and had got through about 7 or 8 of them and in the last curve all of a sudden the front end starting sliding out from under me. I knew i was not going to make the curve and just as i started going off the road i stood the bike up and saved it thank God!!. It scratched the lower part of my plastic pretty good but at least we didn't get hurt. I have looked at the tire and the only thing i can see is blue marks on the tire. I don't know what caused it and if someone could give me some tips on that to look for i would be grateful. The tire pressure was good and the only thing i can think of it that i had laid it over and got into the new part of the tire that wasn't quite broke in yet.

 

[BusaWhipped]

Only a guess, but most likely too much load on the front from coasting or braking too deep into the corner.

 

[mr8ball]

Only a guess, but most likely too much load on the front from coasting or braking too deep into the corner.

Would this cause the blue color that i am seeing on the tire now? It looks like the tire might have got to hot. I am just guessing here and looking for answers. Thanks again

 

[BusaWhipped]

The bluing would be from heat. Heat could be from the tire being low on air which might cause problems, but I frequently have bluing tires after an aggressive run with correct pressures. Once the bike is tipped in, the rear tire should be carrying the load around the corner. Front end slipping is frequently from not rolling on the throttle in the corner. Loading the front in the corners could also cause overheating.

 

[HillbillyTom]

You say the tire pressure was good, what exactly was it when you started out on the ride.
Hard really to tell without actually seeing the tire.

 

[rusheriv]

What BusaWhipped said from another source.

 

[mr8ball]

You say the tire pressure was good, what exactly was it when you started out on the ride.
Hard really to tell without actually seeing the tire.

It was 45 when i started, I will have to try to take a pic of it and see if i can post it. Thanks again for all the help

 

[NCBusa2001]

Glad you saved it!

 

[TruWrecks]

Try 36 if you are riding aggressively on the street, and 32 for track. 45 is too high for a BT015. Was the BT015 at 800 miles total?

 

[HillbillyTom]

Yeah, 45psi is way too much (42psi is the rated max). I use 38psi in the front packing double, 35-36psi by myself. Tire being rock hard (very small contact patch), and maybe an uneven throttle on/off could very well have done the trick.
As for the bluing, still dunno about that one.

 

[Black Sheep]

I am learning how critical Tire Pressure can be depending on what/how your riding. Take a few clear descriptive photos and we'll get them to a few Pro's including the Bridgestone Rep/Tech. Thank God you saved it, especially with the Passenger. Way to save it bro!

BTW- I too think 45 is too much as well.
Posted via Mobile Device

 

[1340]

It was 45 when i started, I will have to try to take a pic of it and see if i can post it. Thanks again for all the help

42 is the max spec for virtually all sportbike tires out there. I normally run 36 front and 35 rear for traction. On my track bike I start out with 31 front and 30 rear then just work my way down depending on conditions. If your crash is not rider error the culprit would definately be the over inflated front tire.

 

[Dr E]

42 is the max spec for virtually all sportbike tires out there. I normally run 36 front and 35 rear for traction. On my track bike I start out with 31 front and 30 rear then just work my way down depending on conditions. If your crash is not rider error the culprit would definately be the over inflated front tire.

+1 Here!

 

[Speed King]

the bluing would be from heat. Heat could be from the tire being low on air which might cause problems, but i frequently have bluing tires after an aggressive run with correct pressures. Once the bike is tipped in, the rear tire should be carrying the load around the corner. Front end slipping is frequently from not rolling on the throttle in the corner. Loading the front in the corners could also cause overheating.

+1000

 

[mr8ball]

Sorry i did make a mistake. I had it at 42 going by the tag on the side of the bike. I am going to take some pictures of it but i just got me a macbook and cant figure out how to load them. It wont recognize my camera for some reason. I am going to lower the tire pressure to what you guys recommend. I really appreciate the help and yes i am so glad i didn't hurt my 2 babys. My girlfriend and my buss

 

[mr8ball]

Try 36 if you are riding aggressively on the street, and 32 for track. 45 is too high for a BT015. Was the BT015 at 800 miles total?

Yes the front tire was new. I have only been able to ride once since then because of the weather. We are going out now for a spin. Thanks for the help

 

[mr8ball]

Here are some pictures of the tire and the damage that was done to the bike. I just got back from riding and it feels so much better with the tire pressure at 38. I took the pic's with my blackberry so I am not sure of the quality. It seems the ones of the bike came out up side down. Sorry. Thanks for all the help

 

[HillbillyTom]

Are you sure there wasn't something on the road? Gravel, sand, etc..?
That tire doesn't look like it's been leaned over far enough to slide, no matter the air pressure or throttle application.???

 

[Sannosuke]

How worn in the middle is the tire? Not enough tire/ground contact when cornering?

 

[sixpack577]

Remember suspension setup for you is no longer the same when you add a passenger. You may have taken the corner fine alone, but went in to it too fast with a passenger setup the way it was. And I'm not disagreeing with the tire thing either, just more a combination of the two.