Mat lajak - youngsters who ride ‘basikal lajak’ or modified bicycles on public roads and highways for thrills - are seen as a danger to themselves and other road users.<br /><br />We spoke to former riders, “Bapak Kembar” who modifies bikes, and “Cikgu Basikal” Alan Mat Noor to find out what would get the mat lajak off the streets.