Mont Blanc Car Roof Bars For Gutterless Roofs Mont Blanc CBC1 Roof Bars are specifically designed for vehicles with gutterless roofs and require a separate vehicle specific fitting kit to complete the application. Mont Blanc CBC1 Roof Bars will safely transport loads up to 75kg when combined with the correct vehicle specific fitting kit. Mont Blanc CBC1 Roof Bars can also be used on a range of 2 or 3 door vehicles with the addition of a Mont Blanc Standard CFK-X Adapter. Please use our VEHICLE CHECK to confirm the correct parts required to create a Mont Blanc Roof Bar System on your vehicle.