Does anyone else think that the Frenzee HGV is heavy to push with the new 'very small' all terrain wheels. They're small and wide, so I would think they have a lot of contact friction. Going uphill you really have to lean into it to move it! 
Are there any suitable replacement wheels with good bearings to fit their axle set-up?
Are there any suitable replacement wheels with good bearings to fit their axle set-up?