Downtown Tires???

[Jalmar]

Kneeslider is absolutely correct. What's on the sidewall is the max pressure the tire can be safely inflated to. The vehicle's manufacturer's recommendation is a compromise, taking into account weight loading, ride comfort, grip and the speed rating on the tire. You should always go with the recommended pressure and not what is on the sidewall.

You can safely inflate tires to 25-30% higher pressure than printed on the side wall. But that would not give you any positiv effects. And it would be pointless, because it would be overinflated. And loose most of it's grip and comfort. The shops that mount tires for you often inflate tires to 75-80 psi to seat the beads. No problem.

But let me ask you a question: Look at my calculations above. If I choose to have a passenger on my scooter, I would easily put 280 kg on my rear tire total. The manufacturer says that I can have max 231 kg on my rear tire. So I do something unlegal, but I do it anyway. (And I think that goes for most scooter drivers). My rear tire can carry 280 kg, but at a pressure of 38 psi.

If I follow Kymco, and put 32 psi in my tire, will I have the correct pressure for the actual load on that tire, or will i be under inflated?

[CROSSBOLT]

I was going by the reference provided in #3 that said load carrying capability is reduced by underinflation and #8 that hard cornering, passengers, heavy loads and higher speeds require higher pressures. Both seem in opposition to what kneeslider said on the 25th that max load capacity and max pressure are not related. What am I missing?

Karl

[kneeslider]

I think we're both correct and incorrect. It's more of both having the corrent answers.

Let me explain and correct my post from before.

Yes there is a max psi for the tire.

Yes there is a max load for the tire.

Yes it is related if you are trying to load out your bike to its max allowed loading using the calculation that Jalmar provided.

No the max loading for the tire isn't related to the tire's max psi. The max loading of the tire is only obtained at the max psi allowed by the tire that you have mounted.

The max loading capacity of the scooter is only related to the tire that is asked to carry that load because as Jalmar mentioned, that max tire load has to be within the weight of the bike's wet weight, rider, pillion and luggage.

[ole two wheels]

One other thing that hasn't been talked about here much, is heat build up, under different riding conditions. If you have inflated to the max PSI on the sidewall and you are riding high speed, as on an expressway, for extended times, your tire pressure can increase as much as 4 to 5 PSI, using regular air.The tire manufacturer has factored this in when deciding what the max psi should be on the sidewall. As stated before, an under inflated tire will heat up more than a properly inflated tire.. Keeping the vehicle manufacturer's recommended PSI in your tires is all important.

[Nireen]

Boy oh boy all this tire talk.  Kat is spinning her LOL

[Mr. Paul]

It is becoming rather tiresome.  (Couldnt resist) 

[ole two wheels]

Aren't we the funny one, Mr. Paul Had to re-read it twice, before I caught on. TIRE-some. Hee hee

[Nireen]

It is becoming rather tiresome.  (Couldnt resist) 

He He He

[Snorvey]

You lot need to get a grip. That joke was rubberish.

Badoom-tish!

I'm here all week. Try the veal.

[Mr. Paul]

You lot need to get a grip. That joke was rubberish.

Badoom-tish!

I'm here all week. Try the veal.

You get a true laugh out loud on that one Snorvey. Oy!

[Snorvey]

Does anyone mix tyre makes front and rear on the DT?

As mentioned previously, I have a new Michelin rear tyre on order (based on the excellent feedback on this website) to be fitted in the coming week or two. I have a nearly new Avon on the front.

I've never had any problems with mixing tyre makes on previous bikes, but that was a good few years ago.

Many thanks in advance.


Snorvey

[mousejunks]

Does anyone mix tyre makes front and rear on the DT?

As mentioned previously, I have a new Michelin rear tyre on order (based on the excellent feedback on this website) to be fitted in the coming week or two. I have a nearly new Avon on the front.

Snorvey

I have a Michelin Pilot on the front and Pirelli Diablo on the back. There is no problem with mixing tyres, but the rear will always wear out faster.

[Stig / Major Tom]

Not worried about the language barrier? !
Might be the first time a Frenchman and an Italian cooperated.
Stig

[Snorvey]

Not worried about the language barrier? !
Might be the first time a Frenchman and an Italian cooperated.
Stog

Nah, they're all the best of buddies now. It's us splitter Brits on our little island that are the bad guys.

Just wait until they (inevitably) start fighting with each other again though.....

[Nireen]

OK forget about the tires and look at this! LOL

https://www.youtube.com/watch?v=gACLPIk5wCc&feature=youtu.be

Kat