Robbi..here is a DRAFT version of my buying / installation instructions…it would be helpful to have a review of this…I’ll edit it as we get closerRobbiZ4 wrote: ↑Fri Jan 10, 2025 11:42 pm Great news!
Do you already have an idea, which material will be taken for the adapters? Maybe I can ask the German TUEV inspector about his view and requirements for such a solution.
Short summary:
- 345mm x 24mm (p/n 34216775289) rotors new from BMW cost about 130€ each.
- partnumbers of the rear calipers are 34216793047/34216793047? New from BMW 290€ each.
- brackets 34216793053/34216793054? New from BMW 240€ each.
to production date..likely February..
https://www.dropbox.com/scl/fi/qscymxyp ... ny9m8&dl=0
The adaptor plates are oversized relative to the loads they’ll endure (they are nearly twice as thick in cross section compared to the caliper carrier..and they are in rolled steel compared to being cast like the cradle)…
There is a choice of materials that they can be made from …S355J2 cold rolled steel or 304 stainless …stainless is about 5 times more expensive..
Any thoughts on folks paying an extra £40 over the basic price for stainless..?
I’d suggest folks buy their stuff from Autodoc..
Practically buying BMW versions are unnecessarily expensive …
The calipers and discs are pretty low tech…if you’re fussy you can buy high carbon discs with / without pretty holes much cheaper elsewhere..
My doc has target pricing ..of course you can buy BMW product ..but IMHO it’s unnecessary..
I would assume even in Germany if the product is supplied by Autodoc and is for the exact BMW part number that should be OK?
I’ve bought a variety of non BMW versions of discs , calipers and cradles and can’t see any issues…
A complete solution for 345mm should be around £500-£600 and for 370mm should be around £600-£700