SPECIFICATIONS Bike Type: Bike Racks for Car Braking System: V Brake & Disc Brake Capacity: 20,1 Bike & 2 Bikes & 3 Bikes Suction Cup Rack Capacity (Load): 20kg Function: Bike Carrier, Car Racks High-concerned chemical: None Material: aluminum Model: Roof Rack Size: About 47*13, 82*13, 93*13cm Type: Car Racks Warranty: 1 year Pls note: If your bike need 15mm or 20mm hub to install it (Such as your bike fork thru-axle size is 15*100mm, or 15*110mm, 20*110mm), you can order it from our collocation by your phones.(Or leave us a message we will help you) Product Detail: Color: Black, Blue, Green, Red Style: 1 bike, 2 bikes, 3 bikes Weight: About 2kg, 3.5kg, 4.6kg Name: Bicycle Car Rack Material: 47*13cm, 82*13cm,93*13cm Sucker: Font 3 Rear 1, Front 4 Rear 2,Front 5 Rear 3 Feature: Installation and disassembly Simply attach the suction cups to the roof and you can easily attach the bike to the roof. Small and portable Light as a brick, easy for girls to move, easy to borrow andshare with friends No damage to paint or sheet metal Synthetic rubber suction cups, no damage to the paint, no damage to the roof sheet metal, say goodbye to traditiona car racks on the roof of the destruction of the transformation Good Compatibility Supports 99% of all car models on the market, sedans, sports cars, and SUVs bikes quick release and barrel forks. all Raider mountain softtail, it all fits Low Wind Resistance The small, slim profile controls wind resistance and greatly reduces noise, allowing you to drive in peace Installation steps: Clean up car and sucker Press cylinder rod until you can't see the white part Fixed the fork Confirm the rear wheel position Fixed rear wheel and pedal Tip: If it is installed on a car sunroof, please don't open the skylight. Speed less than 120km/h Check every 4 hours If your bike need 15mm or 20mm hub to install it(Such as your bike fork thru-axle size is 15*100mm, or 15*110mm, 20*110mm), you can order it from our collocation by your phones.(Or leave us a message we will help you)