Quick release mount at seat post. Suitable for seatpost diameter under 33mm only. Fits V-brake and Disc brake bike. It is adjustable for many kinds of bike, 26 700C fits well.;Large capacity: Manufacturer suggested 25kg or 9kg(when only install via main girder on seatpost); In fact it can carry over 60kg as we tested. But not suggest long time carrying over 60kg.;Material: Aluminum Alloy Weight:about 2.65lbs Size: Rack platform: 35.5cm x 14.5cm(20 x 5.7); Main Post: 54cm (21.3);Quick release to install at seatpost;Adjust the platform via screws under it.;Packing rope included. With rear reflector, make you safer to riding at night.With side protecting frame, make your luggage not scratched by the wheel or spokes

• UPANBIKE 130lbs Capacity Alloy Rear Rack, Fits Mountain Bike V-Brake Disc Brake Bicycle, Quick Release Mounted at Seatpost, Carrier Luggage Pannier with Side Protecting Frames
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UPANBIKE 130lbs Capacity Alloy Rear Rack, Fits Mountain Bike V-Brake Disc Brake Bicycle, Quick Release Mounted at Seatpost, Carrier Luggage Pannier with Side Protecting FramesUPANTECH