Description This bicycle wheelset is made of high-quality aluminum alloy and steel. So it is lightweight, making it easy to ride. The disc brake design allows you to enjoy an environmentally friendly and safe ride while increasing the amount of exercise you get. Specification Color: Black Hub Color: Red Brake Style: Double Six-hole Disc Bike Type: Mountain Bike Material: Aluminium Alloy, 45#Steel Surface Treatment: Anodized Load Capacity: 200kg/441 lbs Front&Rear Opening Gear:100mm/3.94in; 135mm/5.31in Gross Weight: 4.5kg/9.9lbs Product Diameter: 73.66cm/29in Package Size: 74*18*66cm/29.13*7.09*25.98inch Package Included 1* Wheel Set (Front+ Rear) 2* Quick Release Lever 2* Spokes Application This wheelset is suitable for bikes with a front opening gear of 100mm/3.94in and a rear opening gear of 135mm/5.31in. The taki of the rear wheel is suitable for 7, 8, 9, 10, 11, and 12s cassettes. One spacer is required for 8-11s cassettes, three spacers are required for 7s cassettes, and 12s cassettes are directly installed. Notes Please allow the slight color difference caused by the shooting light and 1-3 cm error due to manual measurement, and make sure you do not mind before ordering.