Answer:The pedals would limit the amount of completed tricycles.
Explanation:
The frames are the easiest part, you only need one frame per bike so you can make 90 tricycles with the frames.
For the tires you divide 270 by 3 and you get 90 so you can make 90 tricycles with the tires.
For the pedals you divide 170 by 2 and you get 85 so you can only make 85 tricycles with the pedals.