Robert Dunlop, 47, was killed in a high-speed crash during a practice lap for the North West 200 on Thursday.
The fatal accident happened in the 250cc qualifying as the riders approached the Mathers Cross section of the course. The engine on his motorcycle seized and he was subsequently thrown over the handlebars at approximately 160mph.
http://news.bbc.co.uk/2/hi/uk_…thern_ireland/7404844.stm