MATE R comes with a loading ramp, while FELLOW doesn't. The raw material for MATE R is aluminum, while the raw material for FELLOW is steel. MATE R weighs 71.01 LBS, while FELLOW weighs 64.6 LBS. The front and rear tire mounting brackets of MATE R are different from FELLOW. The front tire mounting bracket of MATE R is a non-adjustable cradle-type bracket, while the rear tire mounting bracket is an adjustable slider. The front and rear tire mounting brackets of FELLOW are similar, as they are both adjustable. Note: The installation direction of the front and rear tire mounting brackets of FELLOW should be distinguished.