It is in use for maintenance of the city cycle with a 27 inch external gearbox. I can not say a complete but normal maintenance work is enough. Maintenance is now possible by inserting two sockets with a length of 28 mm for the socket wrench and an outside diameter of 17 mm on the side to be plugged into the stand, although the front wheels are useless.
The end portion of the cylindrical plastic of the quick insertion portion on the chain side was oblique as if it was missing. It seems that plastic did not flow during molding. Although it is defective, it is used as it is because the chipped part was above, but it is uneasy whether it will not come off if you rotate the wheel at maintenance. I will not buy the product of this manufacturer twice.