640d Runflat to non runflat

640d Runflat to non runflat

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Discussion

CSK423

Original Poster:

763 posts

208 months

Thursday 21st July 2016
quotequote all
I'm contemplating changing my OEM runflats from factory to non runflats on my 640d GC. Currently Dunlop Sport Maxx GT's.

What is everyone's recommendation for non runflats ?

CSK423

Original Poster:

763 posts

208 months

Sunday 24th July 2016
quotequote all
EGTE said:
A RFT will still puncture and costs a lot more to replace, though.

As said above, they ruin the ride, cost a lot more, reduce MPG (sidewall takes a lot more energy to flex) and are very heavy.

Blow-outs are only really dangerous to high-C of G cars like SUVs, so you don't need RFTs and you will certainly appreciate not having any!
My concern going non RFT isn't the blow out risk but more the stranded risk until BMW assist turn up.

The Michelins seem to be slightly cheaper than a dunlop RFT from what I've seen which is circa £20-30 a corner.

CSK423

Original Poster:

763 posts

208 months

Sunday 7th August 2016
quotequote all
Anyone got experience of continental sport contact 6 ? - 4 tyre = £789.12 fitted at black circles.

Others are

Michelin PSS - £952.38
Pirelli P zero - £775.62

CSK423

Original Poster:

763 posts

208 months

Thursday 13th April 2017
quotequote all
I've just ordered a full set of MPSS to replace the RFT Dunlop sport maxx GTs.

The data shows them being louder (66db dunlop v 71db) hoping the non RFT of the michelin makes up with a smoother ride over noise.

Anyone noticed how noisy the MPSS are on the 640d GC ?