Federal 7th Circuit Court
Civil Court
Class Actions
Dist. Ct. erred in certifying class in action alleging that defendant's motorcycle had defective steering assembly design where certification question was made without prior finding that expert opinion supporting plaintiffs' claim was reliable, and where challenged opinion was integral to satisfaction of Rule 23's class certification requirements. Moreover, plaintiff's expert opinion was not reliable where methodology underlying expert's opinion concerned testing of single motorcycle, and where expert's proposed safety standard had not been accepted by any other expert or governmental entity.