Thanks to the new grip compound special rubber mix capable of performing in low temperatures improved mileage and grip compared to the michelin lithion 2 improved security a new grip compound which provides excellent wet grip as well as increased mileage available in 2 sizes and 2 colors weight 23 622 700x23c 225 grammes 25 622 700x25c 255 grammes tyre pressure 23 622 700x23c 87 116 psi 25 622 700x25c 73 109 psi tube recommendations 23 622 700x23c