Running a car tire on a motorcycle seemed like the dumbest thing ever. So, naturally, we gravitated towards it and decided to give it a crack. Gulp. Don’t knock it till you crash on it – said no one ever.
GEAR BREAKDOWN
Wheel Balancer : https://frt9.co/s9rmmc
Bead Breaker & Tire Spoon Tool : https://frt9.co/h6rm8b
Valve Removal Tool : https://frt9.co/gzmje3
Rim Shield : https://frt9.co/1dva00
Motion Pro Bead Buddy II : https://frt9.co/gkttc1
Tire Change Stand with Bead Breaker : https://frt9.co/gid5lb
Marine Adhesive/Sealant : https://frt9.co/364z7e
Sealant Tape : https://frt9.co/zqarvc
Gear up for your next adventure at fortnine.ca:
https://frt9.co/98au9e
Connect with us:
http://facebook.com/fortnine
http://instagram.com/fortnine
Tweets by fortninecanada
source
I ran dark side on my Vic for 2 years without issue. Depends on the bike and tire you run.
Seems like it wouldn't be too bad an idea to keep one handy for drag racing, other than that, no thanks.
I’m not sure we should be using this formula (friction) for tyres; it seems like too much of an oversimplification of the forces at play as the coefficient of friction for rubber starts decreasing after a certain amount of pressure is applied to it. If you have a smaller contact patch with the same amount of weight being applied you have a higher pressure. I would assume then that a larger tyre (or at least a larger contact patch) would increase the amount of “grip” available.
Rubber is a viscoelastic material that will “break away” (shear) from itself if a significant enough force is applied, hence putting the same amount of weight over a larger surface area (wider tyre on a bike) will decrease the pressure applied, making better able to “stretch” and keep contact (grip) and less likely to break away. Whilst the weight of a motorbike may not be enough to create a large enough pressure to decrease rubber’s CoE I would argue that the force created from the engine in the form of torque would be – we are all aware of what happens when you apply too much torque to the rear wheel of a motorcycle – the rubber breaks from the tyre and is left on the road. Likewise if you apply enough lateral force when cornering you can overcome the rubber’s ability to grip the road and lowside the bike.
I would argue therefore, that a larger surface area would increase your grip for both acceleration and cornering. – The exception being with rain or ice, which brings up the use of slicks, if a larger contact patch was irrelevant, why would people bother running slicks? You would just run tyres with tread regardless of the conditions.
From Wikipedia: “A racing slick (also known as a "slick tyre") is a type of tyre that has a smooth tread used mostly in auto racing. […] By eliminating any grooves cut into the tread, such tyres provide the largest possible contact patch to the road, and maximize traction for any given tyre dimension. Slick tyres are used on road or oval track racing, where steering and braking require maximum traction from each wheel”
My explanation is also an oversimplification of what’s at play where the rubber meets the road. Also worth mentioning that I’m neither a physicist nor an engineer, so am happy to be proven wrong if someone can explain it.
fort9: put car tires on motorcycle
indonesian: put bicycle tires on 250cc motorcycle
How about the fact that you will be denied insurance and possibly go to jail if you cause an accident?
Low cost??? fuel consumption rate +++++
Know an old guy who had a car tire on the back of his VTX 1300.
Long story short, I was on a group ride with about 25 other bikes when one guy wiped out in front of me. I was attentive and able to get well out of the way before he hit the dust, but the old guy with the VTX behind me got lost in the dust and braked as hard as he could.
He slowed down enough from 80mph to stay on the bike, keep it upright, and only bent his front forks, despite running into the wreck head-on.
The car tire, in this case, saved this old guy from being thrown from the bike and being critically injured or killed. The guy who started the pile-up wasn't so lucky.
Though despite this, I still run the recommended Dunlops for my honda, its not worth losing corner stability.
I feel much more likely to wreck in a turn, then on a straight road.
Even in this situation, I was actually closer to the wreck than he was, thus I had less time to react.
I was far more attentive than the old guy, so I was able to notice the rider in front of me start to wipe out and then get out of harm's way quickly.
Wherewith a car tire I wouldn't have been able to react so quickly.
This is common in the cruiser/muscle bike scene. Lots of Yamaha Warriors out there that have gone to the Dark Side!
40 years of riding , ten of that racing and dragging knees and I have never and ever heard of anyone putting a car tire on a bike.. Where did this myth come from ? Great example though and thanks for all BS you had to go through to show it.
Nice video young Quentin Tarantino
1 That tube would have stretched to fit the car tire with no problems.
2 That tire would not require zip ties to mount it.
3 The tire will not overheat with a tube in it, unless you are doing sustained high speeds in a hot environment.
I buy Pirelli angel st. Only $120 online. Great for the average rider. No one out here needs performance ultra pro super space tires for their bikes unless they’re on the track. That only counts for like 10% of riders.
It's not for me, but much like high ape hangers and slammed bikes, I can appreciate the aesthetic that people may be going for at the expense of their own bike handling. I prefer functionality over looks for my personal vehicles, which is why I switched out swept back bars and 11 inch shocks for drag bars and 13 inch shocks, to give myself more steering feel/better handling and better lean angle while also saving my wrists from a bad angle.
Right. Because you are better than the engineers that design it and such car tire would be almost the same price, arguments against??
The most shocking thing was that you pulled out a flip phone. God bless Canada
I put 50+ thousand miles on a car tire on my 06 Nomad. I got sick of having to by a new $250 rear every 4-5 months..because my primary driving was heavily loaded on interstate…so all straight and level. This resulted in a wear strip 2-3 inches wide while the rest of the tire was essentially untouched. I was on a tight budget and this seemed like a good thing to try.
Frankly, I loved it. It actually solved some handling issues I had with lines gouged in the highways, causing me to train track…cured a head wobble ..and my wallet problems. Finding a shop that would install it..well, that was harder. I eventually found a street bike mod shop …. frankly they did so much crazy crap, I think if I'd asked to install rocker launchers… they would have. I drove they bike till I had to sell it to move back into the mainland. I did have a bike shop tech pitch a fit because it scared him to drive it.. had to tell him to man up.
You are correct in every thing you said, But it still doesn't explained why Bike tyres are so much more expensive?
Outro song?
Conclusion! stick with motorcycle tire/tyre designed for gyroscope turns etc hence they are curved …no brainer ??
Cleaver. Explain how a foolish endeavor can be successful. Flaunt expertise and vast knowledge while appearing humble. Be here for the little people, the helpless and ignorant. Marketing major? Engineering? Political science? Sorry for the snark, I have identity issues and I lash out with words, wait, I just had an epiphany. I'm cleaver, foolish, helpless and ignorant too. Thanks to YouTube comments I have place to ramble, use too many commas, draw attention to myself and hope there's someone with an eye for real talent reading this. Then that someone will be inspired to make a video about tires and I'll watch it and realize, it's me, oh me me me.
I actually would love to see a video of you speaking Canadian lol
Why?
It looks fucking dope with a wide car tire on than bike tho
I’m happy to risk. Three years now.
Like a motorcycle james may
I went Darkside on a 96 Goldwings. Everything he said is true, it works. However the bike handled so bad that it was no longer fun to ride and was scary at high speeds. I put a MC tire back on and it was back to its normal handling.
I am still for it, but for me it did not work well.
awesome video! and same goes for prewar tire reproductions on mondernish bikes
But how cool would a set of BF Goodrich mud terrains look on a gs1200! And last 50k miles !If only it worked.
Are you thinking mu is not related to contact patch ? Think again bro
in the end you are really measuring price vs benefits. Even just considering two MC tires, you have to compromise. The best MC tire won't last as long and will cost more.