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beestoys said:
I would hate to see this get into a shouting match.
... if it does I have a 'button finger' poised :smilebig:

..... but I have to say this thread is giving a good insight into risk perception bearing in mind that everybody who rides motorcycles has an above average tolerance in the first place .....
 
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Try keeping tires on your bike doing 195 miles a day round trip to work 5-6 days a week.
Damn.... I'm riding 80 miles a day & I thought that was a lot!
New set of BATTLAX T30 GT's on now & shooting for 12,000 on the rear.
I wouldn't consider a car tire ever. Too many wet twisty roads on my commute.

This car tire idea seems to plague the VFR forums from time to time. It usually gets ugly quick.
 

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Wow
heated up a little bit. I understand the Wing riders intent and also can understand some of the board members opinions too. I say good on you all just be mindful of constructive criticism and lets take each other in mind when answering too. I would hate to see this get into a shouting match.
Hummmm well,,,,,didn't read any heat in this thread,,,just opinions with a little bit of devils advacate from RollinOn.
All is Well.
STex, out
 

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This kind of thread is bound to generate strong opinions. All good so far. :thumb:

Despite thinking it's a bit nuts and I wouldn't do it for the liability reason I posted, I'd definitely like to know what happens. Did a half-hearted search for such threads on other forums and didn't find any, so it's obviously pretty unusual for the kind of bikes we ride.

Dennco, do you have a GoPro or something similar? I've seen YouTube videos of dark side installations where the camera points back to the wheel. Aside from making an interesting vid, it would help to see how the tyre's behaving when cornering.
 
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YouTube has quite a few videos on this subject labeled "dark side"
As many miles as I put on my bike weekly I love the idea of a longer lasting tire. I need to see more evidence proving this to be safe before I would entertain the idea.
 

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yes but make that 'dark side motorcycle', other wise you might end up with pink floyd.
the videos pretty much confirm my gut feeling, there's plenty of contact patch if you don't try for Rossi lean angles. my worry would not be with having enough contact patch, you can't have much less than a motorcycle tire offers anyway, my worry would be with the behaviour of the side wall and the shape it takes and if it will stay on the rim. and even that doesn't worry me too much, but liability as mentioned is a real concern.

but if a car tire can go 45 degrees with 2000 kg + 6 passengers, i'm sure 250 kg Blackbird + rider will be allright.

 

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but if a car tire can go 45 degrees with 2000 kg + 6 passengers
Maybe, but not for 30,000 miles! I think the stunt guys who do this kind of thing regularly modify their tyres.

A couple of quotes from a Car and Driver article on the subject:

Tonny Petersen, a 78-year-old Danish acrobat–turned–stunt driver, who has been high-skiing (that's two-wheeling) cars for more than 50 years, says, "Oh, my God, I've rolled my share of cars. I have no idea how many. When you are driving high skis, you have flat tires. Tires explode, and the car goes one of two ways depending on the surface, potholes, and soft spots."

...and...

If you get good, you may be tempted to drive more than a mile like this, maybe run an errand up to the local convenience store. Don't. The front tire in contact with the ground will inevitably fail. High-skiing for long distances requires specially built tires, which your car does not have. Not even if it's a rental car.

I'm sure 250 kg Blackbird + rider will be allright.
See above!
 

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Safety/performance, insurance, and other concerns aside. I think it looks terrible asthetically and would throw that into the mix of why I wouldn't do it too. My thought is if you can't afford to ride a bike using bike tires, then just drive a Prius.
 
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Which side gets the whitewall? <---- My biggest concern. I like bike tires for bikes and bike oil for bikes. Truck tires for trucks and truck oil for trucks.
There are a lot of smarter guys out there building these things for me. I will have a bit of faith with them, I do not mind getting off of my wallet for peace of mind.

When I was racing, the biggest cost was tires, also the cheapest insurance. Go figure.

I guess you have to ask yourself, what is the risk and if it is worth it. Not for me but I am glad you are trying it. Interesting.
 

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Which side gets the whitewall?
Hahahaha..... I want to put 24's on my ride and maybe some hydraulics so I can roll thru the hood and flex.

"FLEX" "As far as urban slang, the definition is "to show off." Used by many rappers"

yeah, maybe I shouldn't post while I'm enjoying an adult beverage...
 

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Hahahaha..... I want to put 24's on my ride and maybe some hydraulics so I can roll thru the hood and flex.

"As far as urban slang, the definition is "to show off." Used by many rappers"

yeah, maybe I shouldn't post while I'm enjoying an adult beverage...
Way to go Reefdiver, now I'm setting here working out the hydraulics for the front in my head. I think it could be really doable with longer bottom legs and tubes. A couple of fittings in the tubes, small electric motor and small hydraulic tank, think overflow reservoir. I bet it could be done mmmm .

Have you seen the chopper bikes with 21's(?) on the front?

IMG_0203.JPG
 

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Way to go Reefdiver, now I'm setting here working out the hydraulics for the front in my head. I think it could be really doable with longer bottom legs and tubes. A couple of fittings in the tubes, small electric motor and small hydraulic tank, think overflow reservoir. I bet it could be done mmmm .

Have you seen the chopper bikes with 21's(?) on the front?

View attachment 56526
Here is a bike with hydraulics ---> https://youtu.be/9lDgd4wjCUc
I cannot stand that huge front wheel "bagger" look.
 

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Car tires also have quite a following in FJR land. I followed an FJR riding friend on a ride a few days after, unbeknownst to me, he decided to take a walk on the dark side. Where he was usually a very smooth rider, he seemed to be having difficulties with turns and curves which was puzzling me... until I took a closer look at his rear tire.

On the following day's ride the car tire was gone and his riding returned to normal.

Sure, you can adjust given enough time, but personally I'll stick with Moto specific tires and enjoy riding the way the bike was designed to be ridden.
 

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Car tires also have quite a following in FJR land. I followed an FJR riding friend on a ride a few days after, unbeknownst to me, he decided to take a walk on the dark side. Where he was usually a very smooth rider, he seemed to be having difficulties with turns and curves which was puzzling me... until I took a closer look at his rear tire.

On the following day's ride the car tire was gone and his riding returned to normal.

Sure, you can adjust given enough time, but personally I'll stick with Moto specific tires and enjoy riding the way the bike was designed to be ridden.

That's the same I've seen from the the ones I saw. When my rear mc tire gets flattened out in the center I notice a big difference in the handling compared to a new tire. I can't imagine what the car tire feels like. May be I'm to picky about precise handling. I guess it's all from a different perceptive on ones abilities and riding styles. Works for some, not for others.
 

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Maybe, but not for 30,000 miles! I think the stunt guys who do this kind of thing regularly modify their tyres.

A couple of quotes from a Car and Driver article on the subject:

Tonny Petersen, a 78-year-old Danish acrobat–turned–stunt driver, who has been high-skiing (that's two-wheeling) cars for more than 50 years, says, "Oh, my God, I've rolled my share of cars. I have no idea how many. When you are driving high skis, you have flat tires. Tires explode, and the car goes one of two ways depending on the surface, potholes, and soft spots."

...and...

If you get good, you may be tempted to drive more than a mile like this, maybe run an errand up to the local convenience store. Don't. The front tire in contact with the ground will inevitably fail. High-skiing for long distances requires specially built tires, which your car does not have. Not even if it's a rental car.



See above!
Well I'm not saying you're or he's wrong, but tire technology has really progressed in the 50 years he's been high-skiing. The (infamous) Porsche Carrera GT was too much for it's tires back in 2005. Handling supposedly is completely transformed with a proper set of 2015 tires. And that is only a ten year difference!
 

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Ha! I have no dog in this fight anyway. FWIW I haven't driven a car for, oh, maybe six years, so I'd be reluctant to do anything except putter around nervously (in constant traffic jams around here) on new or old tech tyres. Lol.

So... back on topic, hopefully Dennco hasn't been put off from posting back on this by all of the opposition. If only someone could come up with a similar way to liven up oil threads!
 

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Ha! I have no dog in this fight anyway. FWIW I haven't driven a car for, oh, maybe six years, so I'd be reluctant to do anything except putter around nervously (in constant traffic jams around here) on new or old tech tyres. Lol.

So... back on topic, hopefully Dennco hasn't been put off from posting back on this by all of the opposition. If only someone could come up with a similar way to liven up oil threads!

You DON"T wanna go there now do ya? Seeing we can't post porno here, how ya going to liven up an oil thread??

I hope Dennco does get back to use with a riding report. Depending how he rides and the types of roads around him the car tire might just work out. It would be interesting to get an unbiased first hand view of using a car tire.
 

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Ha! I have no dog in this fight anyway. FWIW I haven't driven a car for, oh, maybe six years, so I'd be reluctant to do anything except putter around nervously (in constant traffic jams around here) on new or old tech tyres. Lol.

So... back on topic, hopefully Dennco hasn't been put off from posting back on this by all of the opposition. If only someone could come up with a similar way to liven up oil threads!
I've been using sunflower oil as motor oil for years in my Blackbird! Next time I'm switching to olive oil because I heard that might give me 30 horsepower extra.
 
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