Lightweight flywheel for the E60 and E61 M5, E63 and E64 M6 with the S85B50 5 liter V10.
Chromoly flywheel (8.42kg!) suitable for the standard clutch (including upgrade clutches from Clutchmasters).
The standard dual mass flywheel weighs 14.4kg
A lighter flywheel places less stress on the crankshaft bearings and clutch because the engine revs easier. The flywheel is practically an extension of the crankshaft. The easier it gets up to speed, the lower the stress on the crankshaft bearings. Something that on the M5 is like two sensitive parts.
Note: Use ARP bolt kit #: 764-1003. M12 x 1.5 x35mm
BMW part nr: 21212229955