Pinstop and ball bearing genoa lead cars both run on ball bearing track, allowing you to upgrade your system without changing track. Sheave carriers pivot to adapt to changing lead angles. High-load axle bearing sheaves pivot 60 degrees for easy trimming. Cars can be easily removed from the track to clean up the deck. Use in applications where lead positions are changed frequently. CB and ESP adjustable cars need track mounted end controls 2740 or 2742 for either 2:1 or 4:1 purchase. Pinstop cars use 2751 track only.