Check the listing for details. 1up bicycle rack mod bolts for DIY ez pull. Condition: New. Listed at 18.00 USD. I designed these mod bolts specifically for the 1up bike racks. These hollow bolts thread into the existing rack and allow paracord (550 cord) to be used to pull the release bar without strain. Simply add your own paracord or purchase the package deal here. This is a cost effective solution to assist you in building your own pulling assembly to mimic the function of the EZ Pull. Designed specifically for the 1up bike racks with the release bar such as the Heavy Duty (HD), Quik Rack (QR), or Super Duty (SD). They are made from PETG to ensure that they will last for a long time. I have been using these on my own rack for well over a year and they look and function as new. This is perfect for those looking to improve their bike rack's functionality.