I have a pair of Altra Rivera 3 that have ~1500km. I am not sure there is any rule (except for marketing) saying you should change your shoes every x kms. I have a friend running ultras in >500km shoes because they are more comfortable and fit better.
IMO, you should change your shoes when they start to get uncomfortable
I have a pair of Altra Rivera 3 that have ~1500km. I am not sure there is any rule (except for marketing) saying you should change your shoes every x kms. I have a friend running ultras in >500km shoes because they are more comfortable and fit better.
IMO, you should change your shoes when they start to get uncomfortable