Versatile, Reliable Racks to Carry Your Bike The TreeFrog Pro 2 bike rack is a double layer roof rack that places the vacuum cups in a perfect triangle for maximum holding capacity. The Pro 2 holds 2 bikes up to 40kg, or 1 ebike weighing up to 27kg, specially designed at the centre of the board, which could also carry 1 tandem bike (up to 27kg). The Pro 2 double layer polycarbonate deck has 3 Tree Frog vacuum cups, each rated to hold 110kg, 2 fork mounts, and 2 strong ladder strap rear wheel holder. Carry Almost Any Bike, On Almost any Car The 9-15x100mm universal fork mount securely holds 2 standard 9mm quick release or 15x100mm forks (with TF’s Boost spacer works with 15x110mm mountain-bike), no need to switch out fork mounts! Pro series are available with 12mm, 15mm and 20mm thru axle fork mount sizes, and includes a Lefty fork mount, with no extra charge. It’s a great choice for any car, and it even fits in a backpack, so travelling with it is easy, and it’s an excellent choice for use with rental cars and can be mounted on the roof, hatchback, or rear window.