THE CT20 SIDECAR FEATURES THICKENED IMPORTED RUBBER TIRES THAT BLEND MOTO AND BICYCLE TIRE CONSTRUCTION ,MORE WEAR-RESTANT AND PINCTURE-RESTANT FOR IMPROVED TRACTION ,REDUCED ROAD NOUSE AND INCREASED STABILITY ,LONGER SERVICE LIFE .SIZE 2*5.0 INCHES,SUITABLE FOR SNOW , BEACH , MOINTAIN ,ROAD ,MUD ALL ROAD SHAPE ,THAT CAN TACKLE EVEN THE TOUGHEST ROADS FOR YOUR MOST RESILIEND RIDE YET.