Anyone got one of these.....

John H100 · Post by **John H100** » Tue Nov 17, 2020 1:57 pm

.....if so what's your opinion of it.

https://shop.ur-windschott.de/en/bmw-z4-g29/

Regards

Chris_D · Post by **Chris_D** » Tue Nov 17, 2020 2:22 pm

€300!

Pbondar · Post by **Pbondar** » Tue Nov 17, 2020 3:02 pm

The general issue with solid wind breakers is that they suffer badly from resonance and turbulence at certain road speeds, hence why almost all the 'proper' ones are a mesh design..

Zed Baron · Post by **Zed Baron** » Tue Nov 17, 2020 3:52 pm

There's a genuine BMW one for sale on Ebay at £225

: https://www.ebay.co.uk/itm/274573119191

Danglesberries · Post by **Danglesberries** » Tue Nov 17, 2020 9:27 pm

Zed Baron wrote: ↑Tue Nov 17, 2020 3:52 pm There's a genuine BMW one for sale on Ebay at £225 : https://www.ebay.co.uk/itm/274573119191

That's a much better/cheaper proposition by far

Ole gits rule · Post by **Ole gits rule** » Tue Nov 17, 2020 9:42 pm

I paid £115 for my BMW original one - admittedly the rest of the bits were on the car including the centre mesh pieces in the rollover hoop.

John H100 · Post by **John H100** » Wed Nov 18, 2020 5:59 pm

Ive got the "factory fit" mesh one, just wondered if anyone had tried the glass one.

Thanks all

John

bonzo · Post by **bonzo** » Thu Nov 19, 2020 10:56 am

Pbondar wrote: ↑Tue Nov 17, 2020 3:02 pm The general issue with solid wind breakers is that they suffer badly from resonance and turbulence at certain road speeds, hence why almost all the 'proper' ones are a mesh design..

I've always wondered about this. Does any manufacturer fit a solid breaker in any convertible?

I reckon the standard mesh grill looks better than the glass one anyway and I've had no visibility issues.

gadgetJunky72 · Post by **gadgetJunky72** » Thu Nov 19, 2020 11:13 am

bonzo wrote: ↑Thu Nov 19, 2020 10:56 am
I've always wondered about this. Does any manufacturer fit a solid breaker in any convertible?

I reckon the standard mesh grill looks better than the glass one anyway and I've had no visibility issues.

the BMW 6 series convertible has a retractable rear window that can be left up as a wind block.

raven · Post by **raven** » Wed Mar 02, 2022 4:09 pm

I installed one today, so far I don't like it very much.
Looks great but there is a lot more wind inside the cabin now, and when you drive through tunnels de sound gets reflected on the window.

I will try it out a few more days but I think I will swap back to the original deflector.

Russ Z4 · Post by **Russ Z4** » Wed Mar 02, 2022 4:21 pm

Glass is a bit of a nightmare - you need the airflow, otherwise you can get an increase in noise, "chopping", or actually a disturbance of airflow which makes buffeting in the cabin worse.

Look nice though.

raven · Post by **raven** » Wed Mar 02, 2022 7:26 pm

yeah looks great, not sure what i'll do yet. I think i'll keep it for when i'm making pictures.

dr_john · Post by **dr_john** » Thu Mar 03, 2022 1:10 am

Pbondar wrote: ↑Tue Nov 17, 2020 3:02 pm The general issue with solid wind breakers is that they suffer badly from resonance and turbulence at certain road speeds, hence why almost all the 'proper' ones are a mesh design..

Agreed.

From a fluid mechanics point of view, any solid wind breaker placed normal to the flow direction is a bad idea from the point of view of turbulence, noise and drag. Needs a few holes drilling into it

Looks cool though.

buzyg · Post by **buzyg** » Thu Mar 03, 2022 8:57 am

Pbondar wrote: ↑Tue Nov 17, 2020 3:02 pm The general issue with solid wind breakers is that they suffer badly from resonance and turbulence at certain road speeds, hence why almost all the 'proper' ones are a mesh design..

As above. Stick with mesh.

bonzo · Post by **bonzo** » Thu Mar 03, 2022 11:03 am

What would happen to a glass wind breaker in the event of a sizeable rear end shunt? I know what I'd prefer from a safety perspective.

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