When is sign on & is there a compulsory rider briefing?November 25, 2016|By manx100 A When is sign on & is there a compulsory rider briefing? Sign on is Saturday 29th July from 17:00 until 20:00. Yes there is a compulsory rider briefing, at 18:00, 19:00 and 20:00 (you only need to go to one!) PrevNext
