TAMIYA F104 RUBBER TYRES REAR SOFT WITH FOAM INSERTSoptional Soft Compound Rear Rubber Slick Tires for the Tamiya F104 Chassis 1/10 scale On-Road Cars. FEATURES: Softer compound than stock tires, ideal for low temperature tracks Use with TAMC4178, Hard Front Rubber Tires if slight understeer is needed on low temperature tracks INCLUDES: Two soft Compound Rear Rubber Slick Tires with Foam Inserts