Boxerworks.com

Hello everyone,
Searching on the internet I found many diaphragm and gaskets kits for 40mm bing carbs.
But the prices are extremely different from eachother (from 15 to 90€).

So the question is: how much for a good quality kit?

Thanks a lot!

I noticed the same a few years back. Meyers sells the OEM diaphragm for 41.65 EUR while Motoworks sells one for £11.64. I've ordered both and found the Meyer unit quite a bit thicker/heavier. In the end I decided to install the heavier diaphragm. There was quite an extensive discussion on this topic on the now defunct BM site a few years back.

In Europe I asked at Bayermotor, they sell the original BMW spare at 80€ and alternative ones at 55€, Motoren Israel sells kit for 38€. I think I will try the alternatives.
80 euros are too much, and maybe are also old spares.