High quality aluminum alloy bike rack that is sturdy, abrasion resistant and features high corrosion resistance for durable use. Key benefits - Broad compatibility: Includes 4 conversion accessory sets to fit most front forks, offering greater versatility than models that fit only specific forks. - Easy installation: Quick release design keeps assembly straightforward. Note that screws to attach the pannier rack are not included and must be supplied by the buyer to match vehicle requirements. - Flexible mounting: Can be fixed on the vehicle roof rack or on a wooden panel in the trunk, making it well suited to SUVs. - Reliable performance: Built to securely hold a bike during transport and withstand road conditions. Use scenarios - Road trips with an SUV: mount on the roof rack to keep bikes secure and keep the interior free for passengers and cargo. - SUV trunk setup: fix on a wooden panel in the trunk for convenient access and expanded cargo space when needed. - Multi-bike compatibility: swap between bikes with different front fork standards using the four conversion sets, without needing a different rack.