What dia is an S2 roll-bar?

[mcandmar]

Is the front 26mm and the rear 15mm? ...and an RS2 is 28mm right?

Thanks,

Mark.

[caterpillar]

right!!!

[Greg_S]

nope i think the RS2 is 26mm from memory

[caterpillar]

try to get a aftermarket 32 or 35mm,then you have a new car

[Lee]

RS2 front is 26mm. Can't remember what stock S2 front is but I think it's 24mm. Stock Avant rear is 10mm and RS2 rear is 16mm. Increasing 2mm at the front effectively doubles the torsional stiffness and the rear upgrade on avant increases torsional stiffness 6 fold. Torsional stiffness is proportional to radius^4.