This comfort creation by Hartco is just what the doctor ordered for the big Kaw V-twin. It is a full 17 1/2 inches across and dished out to fit your round bottom. The passenger was not forgotten. Her part is a full 14 1/2 across. This seat can be had in all vinyl or with a velour top for heat and perspiration prevention. It is also available with a removable driver's backrest.