-172 has a 22mm one
-stiffens the back end meaning less understeer
-back end becomes more nervous, on a standard 172 could mean lots of oversteer
I think there's more to it than a slightly thicker ARB why the 182 handles better than the 172 imo . I think the wider track and wider , better ( exaltos ) tyres have a fair bit to play in why it handles better .
-172 has a 22mm one
-stiffens the back end meaning less understeer
-back end becomes more nervous, on a standard 172 could mean lots of oversteer