93* mm bore size results in a displacement of 4600 cc

ensuring easy installation and precise fitment

Optional service upgrade: add a high-performance valve spring kit

CERTIFICATIONSThe RA-series fuel cells have been tested and approved by FIA and SFI

1990-1996     E34     525i

BMW M50 M52 S50 S52 7.25" Flywheel 18307845466 93* mm bore size resultsTilton 7. 25" Flywheel for BMW M50 M52 S50 S52 Looking for a lightweight flywheel upgrade that bolts right into your OEM BMW manual drivetrain? The Tilton Engineering 7. 25" Flywheel is a direct fit performance upgrade for M50, M52, S50, and S52 engines using OEM manual transmissions. Weighing in at just 7. 9 lbs, this flywheel is designed for serious performance gainsfaster revs, quicker throttle response, and reduced rotational mass. Whether you're