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One of the few magazines I subscribe to is Rider Magazine as well as American Iron. Both have different points of focus, one being on Harley Davidson and the other more of a rounded view of the motorcycle world. This month, Rider has an excellent article on the “Dark Side” question of using car tires on a motorcycle. Before someone begins to howl, I am not here to get into a discussion on the virtues of either side of the question of car tire vs. motorcycle tire. Rather, to point those who have an interest in information about the question of tires on motorcycle. Again, the article is in the July issue of Rider Magazine. Of course the conclusions of the article are predictable as one might expect. But, the underlying premises is sound advice for those who care to take the time and read not only what the tire manufactures have to say but also non bias motorcycle experts who have no financial gain in the issue. Well worth the read.
For those of us that do not subscribe to Rider magazine, can you summarize their findings?
I am considering the darkside for our sidecar rig.
JackL
Well, the conclusion is quite simple, one should not use a car tire on a motorcycle. It is like using a screw driver to tighten a bolt...wrong tool for the intended use. As the article states, there are those who will never be convinced that there is a issue with using a car tire on a bike but the evidence is very clear, car tires are not designed for motorcycles. But, here is one point that was interesting....insurance liability question. If you have a wreck either with or without another vehicle involved and you are using equipment not designed for a motorcycle, you may be found at fault for the accident and not be covered at all. A good lawyer would certainly have a good case. The biggest issue the article sights is; car tires do not provide the stability on turns and corners as a motorcycle tire. The contact footprints are entirely different and provides much less safety for a motorcycle. If one goes in a straight line without ever encountering a turn, then a car tire might be fine but once you enter a turn, of any degree, you are at a disadvantage both control wise and handling.
There is just too much evidence that supports the non use of car tires on a motorcycle the article points out. As to your question on a sidecar, the article does not address that issue.
Well, the conclusion is quite simple, one should not use a car tire on a motorcycle. It is like using a screw driver to tighten a bolt...wrong tool for the intended use. As the article states, there are those who will never be convinced that there is a issue with using a car tire on a bike but the evidence is very clear, car tires are not designed for motorcycles. But, here is one point that was interesting....insurance liability question. If you have a wreck either with or without another vehicle involved and you are using equipment not designed for a motorcycle, you may be found at fault for the accident and not be covered at all. A good lawyer would certainly have a good case. The biggest issue the article sights is; car tires do not provide the stability on turns and corners as a motorcycle tire. The contact footprints are entirely different and provides much less safety for a motorcycle. If one goes in a straight line without ever encountering a turn, then a car tire might be fine but once you enter a turn, of any degree, you are at a disadvantage both control wise and handling.
There is just too much evidence that supports the non use of car tires on a motorcycle the article points out. As to your question on a sidecar, the article does not address that issue.
I agree totally. I have spoken to a couple of lawyer friends and their eyes lit up when I asked what they would do if someone hit their client on a M/C running car tires. It really doesn't matter as those that are in favor of using them won't believe this so its like peeing into the wind.
Eventually something terrible will happen and then perhaps the word will really get out.
Do you put car tires on your Cessna as well??
Discussing this issue is the same as trying to discuss religion...there is equal passion on both sides of the argument with this one proviso: There is clear evidence using car tires on a bike is not recommend and is outright dangerous. Whether there is a heaven or hell, no one has come back to tell us there is either. But most assuredly, there is evidence that there is correct equipment one should use on a motorcycle. One day, some lawyer is going to present this question to a jury about car tires on a bike and I feel safe in saying the motorcyclist will paid a hefty price for their use.
2009 RK I had road the car tire for almost 6000 miles. The bike was totaled out in oct 2011 and spent a week at the Harley shop getting estimates before it was considered a total loss. The CT was never mentioned by the insurance. The employees in the shop asked me about the CT when I went to get my plates and a few other items off the bike. If they could of got out of paying me off
i'm sure they would have. 15 for the bike + riding gear and add ons to thr bike.
I ran a CT on a chopper back in the late 70s. Never ran into a problem with it.
I suppose if a lawyer could raise a stink about the car tire, he could probably do the same about anything on the bike that wasn't stock, from license plate mount to front fender shape.
Yeah, perhaps if you carve the canyon roads with a car tire, you might have some trouble, but for the average touring bike that runs the super slab, not going to have much trouble out of it.
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