I am not using this lift with motorcycles. I needed something that would support a good amount of weight and be able to raise what ever is on the platform to different heights. I use it to line up mold nozzle with an extruder. The nozzle of the extruder is fixed in place, but different molds have their nozzles in different places. This motorcycle lift was the perfect solution to lining up the molds. The screw turns nice and smooth and I have not had any problem with the left falling back down, but I have never had more than 100lbs on the lift.