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Why NOT to use a Car Tire!

Not quite getting your point. How do you know that it is a car tire? I do see what appears to be a bulge on the rear of the tire that I think you might be might be referring to, but that could be a tire defect, which in fact happened to me. Doesn't make it a car tire.
 
CAR TIRE NO NO

I don't see the BULGE ..... but it does look like a car tire from the profile ....Mtc tires are way more rounded .... Very few touring bike riders have gone to the " Dark Side " and use car tires on the bikes, the amount of contact patch that rider has is at least 50% less than what He would have with a proper size Mtc tire for that Wing.... The only advantage is .... if you drag race it ......... jmho..... Mike :thumbup:
 
BLUEKNIGHT911 said:
I don't see the BULGE ..... but it does look like a car tire from the profile ....Mtc tires are way more rounded .... Very few touring bike riders have gone to the " Dark Side " and use car tires on the bikes, the amount of contact patch that rider has is at least 50% less than what He would have with a proper size Mtc tire for that Wing.... The only advantage is .... if you drag race it ......... jmho..... Mike :thumbup:
Click to expand...
Run car tires on several motorcycles for 14 years. Not for everybody, but more contact to ground no matter how you lean it. Never had one turn loose while dragging my pegs. Takes getting use to running one. Some has tried it and didn't like it. You will find quite a lot of them running car tires over at the VRCC. I run one for so long it was second nature to me. Slow riding and uneven payments will let you know it is back there. Was running one on my 07 Goldwing when I sold it. Run a 205/55/16 on my Valkyrie for 11 years.100_1548 (Small).jpgHere's one on my 99 Valkyrie.
David
 
Scary experience!

A friend of mine came to my shop a few years ago and asked me to help him install a car tire on his wife's bike. During the process we could not get the bead to set on a 4-5 inch section of the rim. We kept inflating, deflating, lubing the tire, nothing worked. He said to me let's just keep putting air in it till it seats. We did, and would have continued but the sidewall blew out on the tire. It was a miracle neither one of us was seriously hurt. As for me I thought about doing it with previous motorcycles until that day.
 
BLUEKNIGHT911 said:
I don't see the BULGE ..... but it does look like a car tire from the profile ....Mtc tires are way more rounded .... Very few touring bike riders have gone to the " Dark Side " and use car tires on the bikes, the amount of contact patch that rider has is at least 50% less than what He would have with a proper size Mtc tire for that Wing.... The only advantage is .... if you drag race it ......... jmho..... Mike :thumbup:
Click to expand...

Mike, I know you are the tyre expert, but the darksiders are not using square edged truck tyres. The curve on the specially selected car tyres they choose lets them get a great deal of rubber on the road. For a sports bike, no, but for something like a Wing or a Rocket, they work well. I had a Rocket, and while I chose not to run a car tyre, there were quite a few in the riding group who did run them, and they were every bit as quick, and as stable, as those on bike tyres. The other advantage is that you can ride around Oz and not have to get a new tyre fitted half way around.
 
Bear in mind that NO part of a Spyder tire will ever be called upon to lean like that in the 'normal course of events'! And if it does eventuate that a Spyder tire is leaning like that during use, BRP gave us this wonderful 'watcher' (commonly called 'The Nanny') who will rapidly bring things back under control & save your arse - and if she can't &/or you can't do that, then you're in way more trouble than you might've thought initially & the tire is probably now the least of your worries!! :shocked:

Besides, a picture of a Goldwing with any sort of tire on it really has absobloodylutely NO bearing on running any tire on a Spyder! ;)

Ps: btw, I reckon the 'bulge' you can see at the bottom rear of the rear tire on the 'wing is actually the end of the other side muffler showing due to the lean & angle of the pic. Look at the shadow of the other side muffler in front of the rear tire, then line up the end of the muffler you can see with the end of where the other side muffler would be.... and it certainly seems that the bulge is NOT on the tire, but is the shadowed other-side muffler!
 
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vided said:
What air pressure are you running in that tire :yikes::yikes::yikes:
Click to expand...

On the bikes it would depend on the tire. Some with the softer side wall we would run around 45 to 50 lbs. Also depended if the tire was rated for that pressure. There was a lot of different tires tried and options. We use to run the directional tires most of the time.
David
 
Why not just let the GoldWing crowd worry about this one? :dontknow:
None of what they do with their tires, applies to what we do with ours... nojoke

:agree: with Peter. :thumbup:
 
It's a leaning thing....

Back when I was into wrenching the only units that used car tires were the traditional trikes and the sidecar bikes. As one can see in both most of the leaning was removed. Stands to reason that the reverse tryke would be the same. Logic would tell most that changing this would not give you the best posible results but we all know they will work. I would prefer to have as much rubber on the road as possible so a stiffer sidewall and sharper corner on a car tire would not be my choice on a two wheeler no more than the half moon soft compound of a sport tire would be for a three wheeler...:lecturef_smilie: just my point of view and some experiences related to me during those years....
 
This is definitely a car tire. But his problem has less to do with the tire and more to do with ground clearance. It doesn't take much metal to pavement contact to lift whatever tire you're running off the roadway and put you down in the blink of an eye.
 
When you put a car tire on a "Leaner"...
As you lay them over into a turn; it seems that the rear tire's contact patch has to shift suddenly to the outside edge, while the front tire's patch transfers over in a more gradual fashion.
Does this cause any transient instability? :dontknow:
 
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