Hi all, The question i have may not be best suited for this forum but i always seem to get sensible answers here! I have not found an answer too this after searching and searching.... If my Rear geometry provides better performance in roll than in bump in comparison to my front axle, firstly is this acceptable for track/road use and secondly would it be better or advisable to have more of one or the other on the rear? below i explain how i met this question. Now my first question would be its a mid/rear engined vehicle, in general terms should i be making the rear camber change better in roll or bump/droop? or keep it the same as the front steering axle? My problem is I want to make my rear roll centre higher based on advice and literature say 70mm (+23mm on front). The rear track = 1300mm so as both track and RC are directly effecting my swing arm length it automatically means the swing arm is shorter than the front and therefore worse in bump but better in roll! Roll is something i can understand being needed on the front as it is the steering axis but the rear!?! it seems every car i look at has a higher RC on the rear and therefore would almost always be worse in bump and better in roll than the front axle. is it acceptable to induce better cornering performance into my rear geometry? making it better in roll but worse in bump?! what would you advise for a mid/rear engined vehicle for track / road use?