Harken spinnaker pole cars feature recirculating ball bearings to permit adjustment under load. They roll freely on low-beam traveler track to allow crew to adjust for optimal sail shape. Machined aluminum hardcoat-anodized races permit Torlon bearings to transition smoothly from active to return race for smooth trimming or easing.

Cars feature captive ball bearings, making them easy to load onto the track and to maintain.

Strong, lightweight cars are constructed from one-piece solid aluminum that is Hard Lube-anodized for strength and durability. Midrange and Big Boat cars accept two popular toggle studs and Harken ball-end fittings.