【WIDE COMPATIBILITY】:Universal roof bike rack with suction cups can be used for most sedans, coupes, hatchbacks, SUVs, vans, and more.It is designed for cyclists who need a space-saving alternative to traditional fixed roof bike racks. 【EASY TO USE】:Quick & easy to install and take off with the suction system. It only takes you a few minutes to mount the bike on the roof follow the instruction. Quick release for the front fork installing and adjustable strap for the rear wheel. 【LIGHTWEIGHT】: The rooftop bike rack is of a lightweight body shape that can be easily taken and shared with friends. Fit for mountain bikes, road bikes,trail bike or any bike with a quick release front wheel. 【PROTECTION】: Rubber sucker protects your paint from scraches,please make sure the surface is clean before mount the bike.Come with a strap to fix the pedals so they don't move and scratch your vehicle. 【PRACTICAL CYCLING SOLUTION】:Ideal for road trips, cycling adventures, and daily bike transport. If you want to travel with your bike, just put your bike on your roof. Compatible with 9mm, 12mm, 15mm (100mm/110mm), and 20mm front axles. Appropriate adapters are required for 15mm and 20mm axles and are sold separately. Brand: ROCKBROS Product: Car Roof Rack Material: Aluminum alloy Weight: 1-Bike: 2.1kg; Size: 16.9*5.12 in (Length*Height) 2-Bikes: 3.4kg; Size: 32.3*5.12 in (Length*Height) 3-Bikes: 4.5kg; Size: 36.2*5.12 in (Length*Height) Color: Red Package include: Aluminium Alloy Bike Rack, Rear Wheel Sucker, Fixed Velcro for Crank Note: Maintenance lube is not included in the package, as it is an embargoed item in international shipping. Installation: Step 1: Clean the car roof and sucker to ensure no water, sand or dust Step 2: Install the sucker on the rooftop Step 3: Press the cylinder rod until the white line is no longer visible (usually 30-45 seconds) Step 4: Fix the fork with quick release on the front sucker Step 5: Confirm the rear wheel position Step 6: Fix the rear wheel and pedal