James Carruthers Active 11 years, 11 months agoProfileFriends 0Groups 1ForumsTopics StartedReplies CreatedEngagementsFavourites Search topics: Forum Topics StartedViewing topic 1 (of 1 total)TopicVoicesPostsLast Post Tyre sizes through the years – anyone got any data? Started by: James Carruthers in: Formula One23 11 years, 11 months ago James Carruthers Viewing topic 1 (of 1 total)