Wingsmoto Exhaust Muffler Gasket 33mm OD ATV Scooter Motorcycle Pit Bike CRF XR 50 70 Lifan GY6 This Item Locates On US Amazon Warehouse ! Please Read The Size on The Second Pictures and Confirm It Is Same As Your Old one ! Fitting:CRF XR 50 70 Lifan GY6 Inner diameter : 24mm Out diameter : 33mm