They aren't compatible, but the Kuat Ibex IS compatible with the Retrax tonneau covers with the accessory slots in them if you use the # KU87ZR adapters. If you'd care to reply with the year/make/model and bed length of your truck, I'd be happy to make a recommendation for you. www.etrailer.com/Accessories-and-Parts/Kuat/KU87ZR.html
