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Topic: Darksiding. Crazy or brilliant?  (Read 2858 times)

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« on: July 05, 2017, 03:59:32 pm »

Darksiding. The practice of putting a car tire on the rear wheel of a motorcycle. Apparently it is not actually illegal (which is kind of weird in our fear crazed society) probably because no one thought anyone would do it.

Are the brave souls who have take the step to put CT (Car Tire) on their bike crazy or brilliant?
Pluses: Cheaper, lasts longer.
Minuses: Changes handling.

There have been no news of a car tire on a bike spontaneously combust, blowing the rider out of the atmosphere. On a heavy bike loaded with luggage it supposedly lowers the temperature, reducing the odds of failure.
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« Reply #1 on: July 05, 2017, 04:23:40 pm »

On my commuter bike, mileage is the only criteria.
Earlier today I was looking at an Austone 175/R16.
Turns out I can pick one up ( almost ) locally. Hmm...
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« Reply #2 on: July 05, 2017, 06:26:37 pm »

Crazy for a sport-touring bike that is going to be ridden sport-tourish.

There are hoards of MC riders that don't really think of handling...  I pity their loss.
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« Reply #3 on: July 05, 2017, 06:30:17 pm »

Some of my best friends do that. But I wouldn't let one marry my daughter.

Seriously, it can work. And I do know a few who can scoot a big bike around corners pretty well on those things.

I'd never do it, though. A lot of damn fine engineering goes into making bike tires work well on bikes and car tires work well on cars. I'll trust their judgment.

I mean, I could also save a lot of money by using some old twine to hold up my pants, wrapping t-shirts around my feet, and wearing an old pair of underwear on my head. Instead, I'm wearing a leather belt, some Converse shoes, and I just ordered a new hat. Those are things I do just so I don't look funny. There's more at stake on my bike -- both in terms of personal enjoyment and personal safety.
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« Reply #4 on: July 06, 2017, 02:04:59 am »

Bikes and tires are pretty forgiving, and a lot of dark siders are very happy with their bikes and tires. I say don't knock it til you try it. I probably will one of these days.
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« Reply #5 on: July 06, 2017, 04:42:07 pm »

I followed a dark side Trophy through curves.  Watching that tire roll up onto its corner made me more nervous than it did to the guy riding it.  EEK!  Not for me, thanks.  I don't care what anyone else does.
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« Reply #6 on: July 06, 2017, 07:31:02 pm »

I vote "crazy."
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« Reply #7 on: July 06, 2017, 08:42:25 pm »

I like big tires on motorcycles

http://www.mandhtires.com/M-H-Racemaster-Motorcycle-Drag-Slicks#.WV7YubEpCf0

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« Reply #8 on: July 10, 2017, 07:58:25 am »

I know a guy with a Goldwing who did it.  Hardly noticed any ride quality issues to complain about.
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« Reply #9 on: July 12, 2017, 01:57:29 pm »

It seems it's safe, but as mentioned I'm sure it affects handling.  Different strokes and all.   Shrug
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« Reply #10 on: July 12, 2017, 09:41:04 pm »


My 2 cents are as follows.

99% of my riding is within 10% of the bikes limits, 0.99% of my riding is over 10% of the bike limits. 0.01% is when I get to meet the cute nurses. With enough sedatives they are all cute Smile. I don't think a single one of those who write to say it is unsafe to put car tire on a bike will wear out a set of knee sliders in a week, or a month, or even a year while touring. I don't think a single one will replace a rear tire because it is completely worn on the edges while the center still has the knobs on. Those riders will not, contrary to what they believe, miss much of the handling benefits of a motorcycle tire.

Usually the car tire will be squarer than the motorcycle tire so the bike will "raise the effective rear ride height" when cornering. This will change the handling of the bike but not necessarily in a bad way. When I started riding motorcycle the rear tires were almost half the width of what they are now, so they have been going into this direction for a long time. Some motorcycle tires have rather square center while many car tires are pretty rounded. If you go for rounder and/or narrower car tire the difference will be less.

Most car tires on motorcycles are on big bikes with heavy loads, low ground clearance and small lean angles. Those will not handle like race bikes anyway so why not go for relatively safe, inexpensive and high mileage tire.

Those who can buy 15.000-20.000 dollar bike would most likely not care to go for a car tire, but for those who are on the low end of the market and battling to keep cheap old bikes running while paying mortgage, alimony and student loans it is an attractive option.

Would I put a car tire on my bike? It depends. If I was going on a long trip with heavy load I think I would. For regular riding on light bike I would not, unless the price was very attractive.  Cool


Is 100% of your riding on the track?
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« Reply #11 on: July 13, 2017, 09:22:22 pm »

I've got a friend who has been dark-siding for years and many many thousands of miles.  If I did a lot of straight line riding, I'd seriously consider it.

Chris
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« Reply #12 on: August 09, 2017, 03:11:40 pm »

My dad has been doing it for years on his cruisers.  He can still drag peg (with the limited lean angle) and gets many many thousands more miles out of a tire.  He loves it.
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« Reply #13 on: August 15, 2017, 02:39:33 pm »

The answer is "Both."  They're Brilliant unless/until they crash, then they're Crazy.  
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« Reply #14 on: August 15, 2017, 05:04:43 pm »


The answer is "Both."  They're Brilliant unless/until they crash, then they're Crazy.  

Schrödinger's tire?
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« Reply #15 on: August 18, 2017, 11:00:01 am »



Schrödinger's tire?


 Lol Lol Lol
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« Reply #16 on: August 19, 2017, 12:23:14 pm »

I wonder what an insurance company would say when the adjuster inspects your written off bike. And if your passenger is injured or killed, how will his / her lawyer view the use of a car tire on a bike ? I would not want to be the defendant in that case. Combining the two, you get your ass sued off and your insurance may be void. There goes your house, retirement savings and whatever else you may have worked for. For what... a couple hundred bucks ? Sure, :I'll never get into an accident"; famous last words.

I put on a lot of miles and wear out at least one pair of tires each year, but I'll take the word and training of the engineers who design bikes and tires over anecdotal evidence of riders.
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« Reply #17 on: August 19, 2017, 07:09:40 pm »



I put on a lot of miles and wear out at least one pair of tires each year, but I'll take the word and training of the engineers who design bikes and tires over anecdotal evidence of riders.



 You mean like the BMW engineers who can't keep the front end or back end on a GS? Plenty of engineers are clueless, and some don't ride or drive!
 Car tires are tougher than bike tires. Chopper guys have been running car profile tires (and car tires) for decades. Just because you can't understand it doesn't mean it won't work!
 Do any of you naysayers understand how tiny the actual contact patch of a motorcycle tire is?! Most of us aren't on a racetrack every day, and y'all can claim what you want, but the majority of us are packing around some jumbo sized chicken strips...
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« Reply #18 on: September 03, 2017, 10:01:38 pm »

Once more- I have yet to hear of a guy that crashed beacuse he had a car tire on.  Alot of the griping coms from people who have never tried it.   Shrug
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« Reply #19 on: September 06, 2017, 06:11:13 pm »



YMMV, but it works well for me.
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