Re: Metzeler Z6 - tyre pressures
 

No that is Mr Bridgestone saying if you crash your motorcycle and your tyre pressures are not what we recommend, do not think about suing me.

Re: Metzeler Z6 - tyre pressures
 

Actually run my Diablos at 36, 40 and find the bike handles better at slow speeds with the turn in not being as sharp or a little unpredictable.

Re: Metzeler Z6 - tyre pressures
 

That's a touch excessive.

I (have) run the same tyres on my ZX6R and my SV650. Both come rated for 33/36 on the SV and 36/42 on the Kawasaki. Now granted the tyre sizes are slightly (but not excessivly) different. When on track, if it's a very hot day I often end up dropping up to 10psi out of a rear tyre.

Bridgestone's BT021's will have different pressures reccomended for different bikes. This will depend on their weight as much as anything.

There is a reasonable scope for personal choice. Clearly 20psi front & rear will feel awful, and not let the tyre react properly. 50psi will also be exceedingly harsh. So a little common sense is required when playing with pressures.

Jambo

Re: Metzeler Z6 - tyre pressures
 

I like 36/39 with Roadtecs, at 33/36 they felt a bit squiggly at times. I've never noticed any lack of grip, etc. If Mr Bridgestone comes and tells me that it's dangerous, I'll laugh in his face.

Re: Metzeler Z6 - tyre pressures
 

I just don't see the point in mucking about with tyres when I've got a whole suspension system to iron out first.
Unless you've got your suspension perfectly set up then why bother with your tyres? You'll get much more improvement from a decent set up than changing tyre pressure.
Personally my tyres have never felt squiggly and in kit I weigh 14st.
Also, call me daft or what, but if someone has spent a money and time to come up with some settings then I'll use them, and if I have an accident and crash investigators check my pressure at least they can't tug me for due care...
... They'll probably tug me for something else - I do live in Essex where the bike is hated after all.

Re: Metzeler Z6 - tyre pressures
 

Tyres and their pressures are as an important part of the suspension as springs and damping.

Cheers

Re: Metzeler Z6 - tyre pressures
 

There's absolutly nothing wrong with running the reccomended pressures. They work just fine. But so do the standard suspension settings on a bike. People do, however, adjust them within the allowed limits, and some people use this oportunity to make a pig's ear of it. I can't see how you can argue that suspension settings need adjusting from factory settings
(which have been developed by the same people who reccomended your original tyre pressures) but to try 3 or 4 psi different in your tyres is somehow both dangerous and irrelivent.

Just my 2p

Jambo