General > Product Reviews
Michelin Pilot Sport Two (PS2) 225/40/18 92Y Extra Load : Review
RedRobin:
--- Quote from: Teutonic_Tamer on October 22, 2009, 10:01:31 pm ---
Thanks - yes, I knew that your kit had the transmitters in the new valves, which get mounted on the inside of the rim - but when something 'transmits' - then there also needs to be a 'receiver' too.
So on cars with factory fitted 'direct acting TPMS' (direct acting means it measures the actual pressure, rather than uses wheel rotational differences from the wheel speed sensors) such as Renaults, Vauxhalls and Audis - they use those same valve transmitters as you have in your TyreSure kit, but they also have four remote 'antenna' in each wheel arch. So basically, not only are the actual tyre valves 'coded' to the TPMS 'head unit' (for want of a better phrase), but also the wheels are 'positioned' on the vehicle too.
--- End quote ---
....No antennae in the wheel arches but you do have to 'connect' the wheel positions individually to the display unit as part of the setup. You then revise it as you revise tyre positions etc.
[We ought to be discussing this in the review thread]
stealthwolf:
--- Quote from: Teutonic_Tamer on October 22, 2009, 09:38:13 pm ---Can I kindly suggest you actually read the full text on the side of the tyre to which that comment relates to! I'll give you a clue - it does NOT apply to the UK or EU. :wink:
--- End quote ---
Honestly, TT it was something I noticed but didn't pay much attention to. I've never needed to inflate the tyres above 40psi! Will have a closer look tomorrow!
--- Quote from: Teutonic_Tamer on October 22, 2009, 09:38:13 pm ---There is absolutely NO confusion.
--- End quote ---
I'm not the one confused TT. I've only ever checked my tyres when cold - as we've discussed in person - using a PCL type guage in the mornings when the atmosphere is cooler. I'm a good boy! :innocent:
I inferred that the previous poster may have been confused/misinformed about the '50psi' warning and may have interpreted it as not to exceed 50psi at all (so s/he may have thought that the limit would have been exceeded when the tyres were hot rather than exceeding the limit when tyres were cold, if that makes any sense!).
--- Quote from: Teutonic_Tamer on October 22, 2009, 09:38:13 pm ---And just to clarify, a tyre can heat up in as little as half a mile.
--- End quote ---
Which is something you reminded me at the JKM meet and hence have never bothered checking tyre pressures unless when cold.
--- Quote from: Teutonic_Tamer on October 22, 2009, 09:38:13 pm ---Tyres are categorically and specifically designed to cope with increases in pressue as the tyre heats up - and they have absoultely MASSIVE threasholds for 'overinflation'.
--- End quote ---
This is something I'm well aware of but wasn't sure whether the previous poster was!
--- Quote from: Teutonic_Tamer on October 22, 2009, 09:38:13 pm ---I've regularly inflated road-legal tyres to over 140psi - and have NEVER had a tyre fail due to over pressure!
--- End quote ---
For educational purposes, why would you do this?
tony_danza:
--- Quote from: Teutonic_Tamer on October 22, 2009, 02:08:42 pm ---
--- Quote from: tony_danza on October 20, 2009, 09:26:01 pm ---Finally I think running 44PSI is dangerous and I'm surprised you're recommending it. On a spirited drive I can see my pressures come up by around 4-6PSI depending on the weather, by that same reckoning, you'd be near or at the maximum limit of 50PSI and serious risk of tyre failure.
--- End quote ---
What an utter load of bollox! I supposed you think I should get locked up for attempted manslaughter by running 85psi in my bicycle tyres!
HTF can 44psi be dangerous? What about the 61psi in the space saver - do we have to have a 'Hazardous Substance' warning sticker on our tailgates!
The mind boggles how you can even post such statements! :stupid:
--- End quote ---
I don't know, what does it say on the sidewall of your bicycle or the spacesaver regarding the maximimum permissable inflation?
I know for a FACT it says you DO NOT EXCEED 50PSI on the sidewall of a 225/40/18 Michelin PS2, and that is what we're talking about here after all... not bicycles, not egos, just PS2s.
You admit that tyre pressures can go up by a marked amount further up in this thread, yes? You therefore MUST accept that your tyres, at 44PSI when hot, will be reaching upwards of the tyre manufacturers MAXIMUM limit??
Am I wrong in that statement?
If you're happy to explrore the "thresholds" of the tyre, then fine - crack on.
If you're telling me I'm an idiot for running 2PSI under recommended when I've accounted for my tyres getting hotter than the fuel flaps "middle of the road" settings... why am I not granted the same threshold?
In my opinion though, you are handing out dangerous advice to people clouded by an arrogance of 'having to be right', even when you probably know better.
Immeadiately dropping to base level of insult and aggression is the act of a child, you should be ashamed of yourself.
JPC:
:popcornsoda: this smiley will be getting tired with how many uses it's had of late
stealthwolf:
--- Quote from: tony_danza on October 22, 2009, 11:12:04 pm ---I know for a FACT it says you DO NOT EXCEED 50PSI on the sidewall of a 225/40/18 Michelin PS2, and that is what we're talking about here after all... not bicycles, not egos, just PS2s.
You admit that tyre pressures can go up by a marked amount further up in this thread, yes? You therefore MUST accept that your tyres, at 44PSI when hot, will be reaching upwards of the tyre manufacturers MAXIMUM limit??
--- End quote ---
See, I saw something like that and interpreted it as not exceeding 50psi when the tyres are cold, as that's when you're supposed to check (and adjust) the pressures.
Given that tyres vary in their pressure as you drive, combined with weather conditions, you cannot guarantee what pressures you might reach when say driving on a long journey on a hot day with a full load. If you set the tyre pressures at, say 42psi, you may exceed 50psi, in which case you risk tyre failure. In this case, it would be negligent for the manufacturers if they did not put a lower limit eg 40psi, so that 50psi is never reached.
It may be the case that the PS2s bugger up after 60psi, so to keep on the safe side, Michelin may have used 50psi as a safety limit as exceeding this would mean the possibility of exceeding 60psi when driving would be prevented.
After all, unless you have a TPMS like RR, you're not gonna stop on the motorway at intervals just to check tyre pressures. :grin:
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version