I did a search and can't find a thread that mentions the size of the stock rear sway bar on the '06 R50. Can anyone share this data?
I'm thinking about buying the Alta Performance Package: H&R sport springs?18mm rear sway bar. I see that most have gone with 19mm or larger. Wondering if 18mm is worth it. The package price is $280, which seems like a really good deal.
Thanks,

Fritz

 

Stock '06 R50 rear bar is 16 mm with sport suspension and
17 mm with sport suspension plus.

 

Thanks. How do I know if I have sport suspension or stock? Bought the car used.

 

You could measure the sway bars (rear is 16 SS, 17 SS+, front is 22.5 SS, 24 SS+),
or you could read the part numbers on the shock absorbers.
Rear shock is 33506764913 for SS and 33506764914 for SS+.
Front strut is 31306764917 left, 31306764918 right for SS,
and 31306764919 left and 31306764920 right for SS+.