Coma, arm amputated after Dunedin motorcycle crash 17 Feb, 2021 07:18 PM 3 minutes to read Johnathon Tresler, 32, had to have his arm amputated after a crash while he was drunk last year. Photo / Gregor Richardson Johnathon Tresler, 32, had to have his arm amputated after a crash while he was drunk last year. Photo / Gregor Richardson Otago Daily Times Johnathon Andrew Tresler knows the cost of drink-driving. Riding an unwarranted, unlicensed Harley-Davidson motorcycle, outside the bounds of his restricted licence, the 32-year-old slammed into a power pole. It was weeks before he regained consciousness. Read More Advertisement Tresler was placed in an induced coma for nearly a month.