- Safe and simple spring-loaded, fixed-position arms do not contact the frame or fork - Spring-loaded arm keeps contact and a secure hold on the bike even if a wheel loses air pressure - Integrated locking hook and hitch pin provide peace of mind with additional security - Tool-free anti-wobble system ensures a fast and solid connection to the vehicle - Adjustable front wheel block for improved fit from 20" to 29" wheels - Whole carrier tilts and folds for easy access to the trunk even with bikes installed - Integrated lock loop offers an additional option for increasing security even further - Compatible with bikes with fenders