dominsar

Hello to everybody, I am in Argentina (excuse my English)and I am new in Lotus Seven Club I bought a new 620R (this is the only and first Caterham car in my country) I want to use it only for racing/training The car was supplied with 6" front wheels , 8" rear wheels and ZZR 185/55R13 and ZZR 215/55R13 Avon Tyres Duration of events will be: 20 minutes Ambient conditions: min 10 C° max 26 C° BMTR Avon dealer recommended me X-Ply 7.0/20.0-13 and 8.2/22.0-13 with the ONLY available compound A37 (????) I think that this is very hard compound for a Caterham car with 310 HP Duratec engine, and I can not believe that Avon have availability of only one compound !! Which is the Slick Tyre best option (brand, size and compound) for my new 620R ? I really will appreciate your help and experience on this matter Thanks a lot in advance My best regards Ing. Alberto Dominguez Sarmiento