billet steel 172 lightwieght flywheel/williams clutch

[broken willy]

im looking at flywheels with inductive pulse pick ups like the megane and 172. i have seen a lovely billet steel 172 flywheel weighing only 3.8kg! this anyone know how much a standard item weighs? is it smething like 6 or 7kg?i already have a group n clutch for my williams, would a 172 flywheel accept this?

[stan]

clutch wont fit, and they run a different trigger pattern, so it wont work with the mk1 OE managment.

[broken willy]

buggar! any ideas what a williams flywheel weighs? i may just have to get one of these and then a trigger wheel later

[schakal]

buggar! any ideas what a williams flywheel weighs? i may just have to get one of these and then a trigger wheel later

around 5-5.5 kgs