LIGHT & STRONG ALUMINUM – This beautiful bike rack is made of finest 6063 aluminum. It’s light, strong , stunning finish and never rust. Max bike load weight is 30kg or 66 lbs total for 2 bikes<br/>EASY INSTALL TAKE OFF – Very easy to install on the car roof crossbars. It fits most aero or square crossbars, Max. thickness: 30mm or 1.18" , Max Width: 110mm or 4.3”. Simply clamp the metal brackets on the crossbars, no tools needed. The bracket position could be fully adjusted to fit the different distance of the car crossbars.<br/>FIT MOST BIKES – Keeps wheels on the bike ensures that all bikes could be quickly secured on the rack.Maximum rim deep 50mm, Maximum downtube and seat tube perimeter 19cm/7.48inch<br/>