O-Ring, Insulator – Soft Mount Version. Thicker O-Rings for reduced high revving vibrations. #Z70/050-R-SM. Fits 40PHH / 44PHH. Includes inner and outer stud O-Rings. Sold as a set of 12pcs, four large diameter inner o-rings and eight small diameter outer stud o-rings. One set required per pair of insulators. One pair of insulators required per carburetor. Replacement Alternative for Mikuni PHH Carburetor (Mikuni #Z70/075 and #Z70/075-R). Fits most Mikuni / Solex O-Ring Insulator applications.

Upgrade Motoring is a Authorized Mikuni Distributor