Physics of the Darkside

[Alpha Dog]

I ran across this today and it explains the physics of a car vs motorcycle tire.

Oooppps, sorry forgot to include this


https://www.youtube.com/watch?time_continue=281&v=hEZeR9E3JyY&feature=emb_title

[Rams]

I ran across this today and it explains the physics of a car vs motorcycle tire.

?

[Serk]

I ran across this today and it explains the physics of a car vs motorcycle tire.

?

Using my NSA powers and analyzing the OP's browsing history, I think this is the video he meant to link:

https://www.youtube.com/watch?v=hEZeR9E3JyY

[..]

What the video omits, as do many other "expert" critics is that not all C/T's act equally on MY bike.

Never having ridden his bike I can't speak to how it "feels". Did he choose the right tire? We will never know.

[Willow]

It's interesting.  On the negative side he listed the risk of spontaneous deflation due to bead misfit, something I have never heard of happening.

It's comparable to a demonstration by experts on why a bumble bee can't fly.  Experience shows us they do.

Experience (lots of it) shows us that some of those physics defined issues just don't happen.

[Moonshot_1]

In principal, the guy is correct. For his bike. I wouldn't use a car tire on a bike like the one in the video. Too light and too little.
Too thin too.

A cruiser style bike will scrape metal and pegs before you exceed the tire's performance parameter. (My experience anyway). On a crotch rocket style or dirt bike, the bike can easily exceed a car tire's performance parameter. Too light and you can likely lean it beyond the point where the tire is simply not capable of keeping the tread on the road.

So the argument that the darkside doesn't work for motorcycles is correct for some motorcycles. Even most motorcycles. But there is a class of motorcycles where a Car tire not only works but works well and, depending on the style of riding you do, even works better than a motorcycle specific tire. The classic cruiser or touring class bikes do well on the darkside.

[Oss]

I did not have the same impressions and car tire is less likely to delaminate like some MC tires

I have to commute in the Bronx on roads with deep ruts

When I had the car tire on my interstate it gave me fits. Just not worth it there

Probably that is why I love the r1150rt-p it is just an urban assault bike

yes riding in the rain awesome with a car tire, it is why I got it after following behind Misfit (and lilbit) on the way back from UpsandDowns ranch

That said I prefer given my choice a 200 series Bridgestone Exedra or Battleaxe  
$ 142 is not much more than a good car tire  even the taxi tire
and I still have to check the splines at 12000 miles when the tire is going to wear out anyway

That said I have a taxi tire in the basement I may put on the red Valk

[Rams]

All I'm gonna say is, to each their own. 

I ride an Austone Taxi Tire and absolutely love it.

End of Statement.

Rams

[Ken aka Oil Burner]

All I'm gonna say is, to each their own. 

I ride an Austone Taxi Tire and absolutely love it.

End of Statement.

Rams

I wish they were still available. That was going to be the next rear tire on my Valk. If I had known it was going away, I would have bought one last year. Universal Tire says they can't get them anymore. None on Ebay, Simple Tire, or anywhere else that I can find. I can't even find the Dunlop taxi tire that looked similar, but was more expensive.

[The emperor has no clothes]

All I'm gonna say is, to each their own. 

I ride an Austone Taxi Tire and absolutely love it.

End of Statement.

Rams

I wish they were still available. That was going to be the next rear tire on my Valk. If I had known it was going away, I would have bought one last year. Universal Tire says they can't get them anymore. None on Ebay, Simple Tire, or anywhere else that I can find. I can't even find the Dunlop taxi tire that looked similar, but was more expensive.

Check out a 195/65 series tire. Best that I've found.

[Valkorado]

Check out a 195/65 series tire. Best that I've found.

Me too.  I'm really liking the Zeetex CT-1000 LTT.  No nut cage mod needed.

[Ken aka Oil Burner]

[Check out a 195/65 series tire. Best that I've found.

I have found a few, but I'd really like to find one from a tire company I have some faith in or at least knowledge of. Radar, Otani, and all of these other ones I've seen make me question the quality control. When the tire market was flooded with (then) Chinese tires 15-20 years ago, they were absolute crap. I worked at an auto dealership then, and the used car department always wanted the cheapest way out when servicing their vehicles. The term round-and-black was used on an internal  repair order to indicate that this particular vehicle was to get the cheapest available tires. Round was an overstatement, as most weren't. CRAZY fast wear, and far too many blowouts were common. I, many times, argued that we should never use them on any of our vehicles. I told myself I'd never use them on my own, either. I know it's years later, but once you've lost trust in something, it isn't easy to get it back. I'm tempted to go with a 200/60/16 Exedra Max when the time comes, unless something comes along that makes me feel all warm and fuzzy... like the Austone did.

[The emperor has no clothes]

[Check out a 195/65 series tire. Best that I've found.

I have found a few, but I'd really like to find one from a tire company I have some faith in or at least knowledge of. Radar, Otani, and all of these other ones I've seen make me question the quality control. When the tire market was flooded with (then) Chinese tires 15-20 years ago, they were absolute crap. I worked at an auto dealership then, and the used car department always wanted the cheapest way out when servicing their vehicles. The term round-and-black was used on an internal  repair order to indicate that this particular vehicle was to get the cheapest available tires. Round was an overstatement, as most weren't. CRAZY fast wear, and far too many blowouts were common. I, many times, argued that we should never use them on any of our vehicles. I told myself I'd never use them on my own, either. I know it's years later, but once you've lost trust in something, it isn't easy to get it back. I'm tempted to go with a 200/60/16 Exedra Max when the time comes, unless something comes along that makes me feel all warm and fuzzy... like the Austone did.

I understand. I will never buy a Shinko again, even though I only had one. That was enough. I will just say I've had numerous name brand tires of different sizes, this Radar 195/65 is my favorite.

[_Sheffjs_]

It's interesting.  On the negative side he listed the risk of spontaneous deflation due to bead misfit, something I have never heard of happening.

It's comparable to a demonstration by experts on why a bumble bee can't fly.  Experience shows us they do.

Experience (lots of it) shows us that some of those physics defined issues just don't happen.

I'm glad you mentioned this as it was the one thing that stuck out in my mind as well.

[semo97]

What is the brand and model of this 195/65, and is there any mods that need to be done?

[The emperor has no clothes]

What is the brand and model of this 195/65, and is there any mods that need to be done?

There are a few out there. My current one I like is a Radar Argonite RV4

[F6Dave]

It's interesting.  On the negative side he listed the risk of spontaneous deflation due to bead misfit, something I have never heard of happening.

It's comparable to a demonstration by experts on why a bumble bee can't fly.  Experience shows us they do.

Experience (lots of it) shows us that some of those physics defined issues just don't happen.

That caught my attention too.  But he modified a tube type rim to run a tubeless car tire.  Since our Valks and nearly all street bikes run tubeless MC tires, would the bead fit issue he mentioned be a problem on a MC rim designed for tubeless tires?  As I remember tube type rims are shaped a little differently.

[Jess from VA]

After hundreds of guys on Valks have been running hundreds of different CTs on their bikes for at least a decade (in lots of different sizes too), with no reported bead problems ever, this would seem to be a non issue. 

When that tire first goes on the wheel and you apply the air, that thing pops on there pretty dramatically.

There really haven't even been any (?) reports of CT chronic bead air leaks either.

My CTs also seem to lose less air over time than bike tires, with sitting and temp changes.