Hello people. I bought two new grip rubbers for my GPZ 500 at Detlef. Diameter 22mm. No problem on the left side, but at the gas handle all the more: 28mm is required there. Besides, there are so funny gears on the gas handle side that should fit into the grip rubber. So is that supposed to mean that I have to buy the parts (pig-priced) from the Kawa dealer? Or does someone have another solution?