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R/flats To Standard Tyres

dexxy

By dexxy,
in BMW 5 Series Forum

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dexxy Rookie

dexxy

Posted
Posted

lads - i'm considering changing from r/flats to standard tyres on my 530/d m sport. i've heard the opinions on both sides and i favour changing. has anyone done this? and with what effect? - however,if i am to do this i will need a 245x40x18 rim -for the spare wheel. if anyone can help email with price to hotaero95@gmail.com i am based in congleton, cheshire soonly within reasonable distance please.

dexxy Rookie

dexxy

Posted
  • Author
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gav- wanted to get more opinions- i think if anyone has spare rim they will still see it on this bit. thanks for your reply mate.

  • 2 weeks later...
starturbo Rookie

starturbo

Posted
Posted

Dexxy,Iv'e just joined this site and I have considered it before but have been told it's not just a straight swap because of the warning system associated with the runflat tyres.Is this true or can you just swap the tyres?many thanks.

Guest Mister Dabsy

Guest Mister Dabsy

Posted
Posted

I think the warning system detects the car's stance and not the actual tyre... A system that monitors the tyre physically, has its sensors transmitted from the tyre valve/cap !

G4VHD Grand Master

G4VHD

Posted
Posted

Dont know if the BMW's the same system, but my Mini detects flats by comparing wheel speed rotation...eg if one flat it will spin faster due to smaller diameter.

If same system, long as all tyres pumped up the same...no probs

Guest Mister Dabsy

Guest Mister Dabsy

Posted
Posted

Good answer, Gav... But wouldn't the ABS sensors think there was "wheelspin" when one wheel rotates faster?

G4VHD Grand Master

G4VHD

Posted
Posted

Good answer, Gav... But wouldn't the ABS sensors think there was "wheelspin" when one wheel rotates faster?

Different sensors ;)

Guest Mister Dabsy

Guest Mister Dabsy

Posted
Posted

Yep...

The ABS will apply slight braking to the offending wheel to match the rest.

ALL sensors are Negotiated through the OBC, as you already know...

I cannot see any immediate problem in changing to standard tyre setups, IMHO.

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