Standard original equipment flywheel weighs over 7KG most aftermarket “lightweight” flywheels weigh anywhere from 3.7 - 4.2KG
Many people change the OEM flywheel to a lightweight version. This increases throttle responsiveness and considered a worthlile upgrade if already changing the gearbox or clutch.
Another benefit of the lightened flywheel is that the rpm will drop quicker between gear changes. This helps with faster up changes.
Also makes down changes/heel 'n' toe easier as the engine blips more easily.
|Rover K Series 1800 OE (1998)||6.625|
|Minister Power Lightened for K Series 1800||4.225|
|Elise Parts Lightweight EN24 Flywheel||3.5|