The Fiesta spare does not fit in the boot recess depth or diameter of the Bmax.You need a wheel size 125 x 80 R15 95 M
This size is used in the Focus (but make sure it has four holes in the hub).
The fixing bolt may be different and the screw towing hook but you have one with the standard gunge pump anyway.
The rolling diameter is 580mm so is a true space saver unlike the Fiesta
125 x 80% =100 (x 2) plus 15 inches = 380 = 580 od
Edited by: rogerhume
This size is used in the Focus (but make sure it has four holes in the hub).
The fixing bolt may be different and the screw towing hook but you have one with the standard gunge pump anyway.
The rolling diameter is 580mm so is a true space saver unlike the Fiesta
125 x 80% =100 (x 2) plus 15 inches = 380 = 580 od
Edited by: rogerhume