Genuine BikeTek S3 Universal Rear Paddock Stand Hook Conversion Kit. These hooks allow you to use your bike’s cotton reel swinging arm bobbins with your BikeTek S2 or S3 rear paddock stand. Simple to swap with the standard chunky plastic cups by removing the ‘R’ clip, slide out the cups & replace with the hook! Don’t forget to replace the ‘R’ clip and away you go.