If I buy a 19mm bar which I found cheap, do you all think I would be kicking myself for not paying more and getting the 22mm? I don't track my car at all presently. I just love to have the car handle a bit better

 

I have a Cooper without the plus suspension and the 19mm bar is great. If you have the S or a Cooper with SS+ maybe get the 22mm.

 

I have a MCSa with the SS+ Suspension. Hmmm.. Interesting point. Anyone else have an opinion?
Also the mm size is the diamter of the bar right? So the thicker the bar the stronger it is which gives the suspension more rigidity right?

 

Talking with Alta folks they say a inexperienced driver (me) the 22mm might cause oversteer. So maybe a 19 is enough for me.:smile:

 

You have options.

Your current MCSa has a rear sway bar that is 17mm.
A 19mm bar would be stiffer than stock and has several holes to adjust for more stiffness if needed. You can start on the softest setting (hole nearest the end of the bar) and see how cornering feels. The 19mm bar would be less expensive and you can always sell it to an MC owner if you feel it is not stiff enough for you on the stiffest setting. You probably will be fine.

A 22mm bar is good for those that go the next level up in performance driving. Autocross or track use with medium to stiffest setting work OK.
Even softest setting for you would be fine with this bar so that is an option that could work, definitely not the stiffest setting.

So assuming that each of these bars is available with three holes the 19mm bar could be used any any of the three settings while the 22mm bar could be used basically on the softest two settings of the three. Take your pick and have fun.

 

19mm

 

If you definitely don't plan to autocross, the 19mm should be plenty on the stiffest setting, but maybe try the softer setting to start.

 

19mm for MCS is too soft imho.

I use 22mm on the stiffest setting and feel about right.

 

it depends on what type of driving you do and plan on doing. As mdsbrain mentioned, by getting too stiff of a bar at an aggressive setting and inducing too much oversteer, it may not suit your driving conditions.

 

Thanks for the opinions folks