BMW Motorsport boss Andreas Roos has revealed that it has ditched the problematic wheel rims supplied by Rimstock in favour of products from German auto parts maker BBS.
While Rimstock filed for bankruptcy last year, which “played a role” in BMW’s decision to swap suppliers, Roos said the “technical anomalies and problems that we had at the beginning of 2023” were also key factors in the move to BBS.
Initially, BMW was of the opinion that the issues it encountered with wheel rims were related to the high demands placed by the Nurburgring Nordschleife. But a cracked wheel rim at Oschersleben that forced factory driver Rene Rast out of last year’s DTM season-opener forced it into a rethink.
Since then, the Bavarian marque has been working on a solution in the background, with the new BBS product now ready to use.
The original idea was to introduce BBS-supplied wheel rims in 2025, coinciding with the upgrade to the BMW M4 GT3 Evo, but the plan was brought forward by a year in response to the problems.
BBS’ wheel rims were already being used on M4 GT3s raced in Japan’s Super GT series since the debut of the car in 2022, but BMW has further honed the parts as it makes it available across the board this year.
“The current rim that we are driving everywhere this year is based on it,” explained Roos.
“It has been further developed in order to be able to bring a very good product onto the market with BBS.”
Source: Autosport