19" runflats on a 335i

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Boxster convert
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Sun Jul 29, 2012 4:01 pm

Some advice please. A friend has a 335i cabrio, possibly 08 (non Alpina). She is thinking of changing her tyres to a smaller rim without runflats as she has had 6 new tyres in 18 months (not sure if this was wear or down to punctures)
What are the issues to address if she goes down to 18" non-runflats? Could she go to 17" rims?

Knowing the expertise on the forum, I am hoping someone can give good practical advice. Thanks in advance.
P
Cheers, Paul (08 B3 BT convertible 041)
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PerryGunn
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Sun Jul 29, 2012 4:21 pm

I'd suggest you PM olli, he has an almost encyclopedic knowledge of all things wheel and tyre related
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ade and liz flint
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Sun Jul 29, 2012 4:35 pm

Boxster convert wrote:Some advice please. A friend has a 335i cabrio, possibly 08 (non Alpina). She is thinking of changing her tyres to a smaller rim without runflats as she has had 6 new tyres in 18 months (not sure if this was wear or down to punctures)
What are the issues to address if she goes down to 18" non-runflats? Could she go to 17" rims?

Knowing the expertise on the forum, I am hoping someone can give good practical advice. Thanks in advance.
P
She can easily go to 18" as the 335 has the same brake hub-size as our D3BT's. 17" will be a squeeze, but will possibly fit (depending on style). Going down to an 18", she will need to increase the tyre profile slightly, but any tyre supplier worth their name will give the profile numbers based on her tyre size choice - her owners manual should also contain this info :wink:

Other point....going non-RFT, she will need an emergency repair kit in the boot. Easily available; BMW can supply (just over £100 was my quote for the Roadster as our can of gloop is out of date and no longer available...so a new complete kit is required with new-style compressor and that was the full kit quote), or look at alternative, cheaper sources.

HTH
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D3orbust
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Sun Jul 29, 2012 5:28 pm

There are a couple of BMW AD's that sell the 'gloop' via Ebay, the price usually has a discount applied.
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D3MT number 284 (gone but will be sadly missed)
biffa
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Sun Jul 29, 2012 9:04 pm

I have changed from run flats to normal tyres , i was advised to use ( slime ) as the repair kit as,this can easily been washed out if & when you need a repair.
Biffa
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ade and liz flint
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Sun Jul 29, 2012 9:17 pm

D3orbust wrote:There are a couple of BMW AD's that sell the 'gloop' via Ebay, the price usually has a discount applied.
I know...but the gloop pot we need is a different type and has been superceded, but it's not compatible with our older-type compressor. Don't forget, I have both types and they are not interchangeable...I checked already. I questioned Notts parts about the canister I need....no longer available :evil: Soooo, it's a complete new kit :!: or risk the OOD canister in the event of a puncture on the Roadster :roll:
Current:
E91 B3SBiturbo #127
981 Porsche Cayman GTS
Focus STline dog wagon

Previously loved:
ALPINA: E92 B3SBiturbo #285, E90 D3Biturbo #097, E85 Roadster S #168 & variety of 'grey' 4 and 6-cyl BMW lumps.
PORSCHE: Macan S, Cayman 981 S
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Burt
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Tue Jul 31, 2012 10:29 am

I switched to standard tyres when I had the 335 and purchased the BMW space saver and harnessed it in the boot!

Think it was about £180 from BM Mini parts
Burt

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Roadster S Lux - 199 - SOLD
ade and liz flint
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Tue Jul 31, 2012 11:22 am

Burt wrote:I switched to standard tyres when I had the 335 and purchased the BMW space saver and harnessed it in the boot!

Think it was about £180 from BM Mini parts
Did that include a jack, Ian?
Current:
E91 B3SBiturbo #127
981 Porsche Cayman GTS
Focus STline dog wagon

Previously loved:
ALPINA: E92 B3SBiturbo #285, E90 D3Biturbo #097, E85 Roadster S #168 & variety of 'grey' 4 and 6-cyl BMW lumps.
PORSCHE: Macan S, Cayman 981 S
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Burt
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Tue Jul 31, 2012 1:05 pm

I don't think it did Ade, expensive wheel but saved in the cost of Falkens v. the run flats

and much improved handling :D
Burt

Roadster S - 286 SOLD
B5 Saloon - 251 - SOLD
Roadster S Lux - 199 - SOLD
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