Again another s4r owner so dont expect anything too contructive
The Aprilias a good bike dynamically..but IMO its looks are a bit challenging..and (depending on how tall your mate is)..its physically a big bike to chuck about.
The acid test is..park up an S4R and a tuono next to each other in a car park and see which one gets the looks from passers by !!!!
With all the troubles aprillia have been having recently...it also doesnt to appear to have done the resale values much good lately either..so if hes in the market for 2nd hand..that may be a deal clincher ??
Cheers
Nat