Easily convert the Kuat Piston SR roof rack into a burly, single tray hitch rack with the Piston SR 2" hitch adaptor. With a weight limit of 100 pounds, it's a great accessory for a heavier ebike. Solid steel constructionFlatlock hitch cam systemWeight capacity up to 100 pounds; 67 pounds in chassis mounted hitch for RVHitch lock includedPiston e-bike ramp compatibleItem SpecificationsDesigned for ebikeYesHitch Type2" ReceiverNumber of Bikes1 Kuat Piston SR Hitch Rack Adaptor Hitch Rack Accessory UPC: 857373008641