Monorim Genuine Foldster Folding X-Lock (Black/Red)New upgraded X Lock. Make sure to watch online tutorials before assembling. Key tip: install and tighten bottom bracket first. Then mount the top part to secure the lock. Make sure to install all four white rubber spacers inside the bracket (two in a middle, one on the left, one on the right). Important! This lock does not replace your original latch! This is an additional unit to increase your safety and put less pressure on the stock latch. Make