Yes you have to be affiliated with club basically they have speedway school for new riders where they train them,fit them as far as i know everything is provided to you bike ,leathers you just have to show up if you are no good after couple trys they will politely tell you this sport is not for you most riders that are later good been around motorcycles long time since very young(mini speedway,motocross etc.) Tomasz Gollob was very good in motocross(he was i think 5th in 1987 in polish championships) before he switched to speedway.