Description Are you looking for a professional and practical Fixed Gear Hub? If yes, look no further! Our Bike Freewheel must meet your needs. This Mountain Bike Cassette is made of stainless steel material, durable and sturdy for long-lasting use. Fine workmanship ensures practicality and durability. Features - Color: As Shown -Material:Stainless steel - Size: 6.00X6.00X0.30cm/2.36X2.36X0.12in Number of teeth:13 -Our mountain bike Fixed Gear Hub allows you to switch between multiple speeds, adapting to different terrains. -The flywheel ring design provides a smoother riding experience, enhancing your cycling performance. -Made with lightweight stainless steel, our Bike Cassette is easy to carry and transport, perfect for outdoor adventures. -Our Freewheel is easy to operate, making it suitable for both beginners and professional riders. -Simple in design, but very practical in use, which brings great convenience to you. Our mountain bike Fixed Gear Hub allows you to switch between multiple speeds, adapting to different terrains. The flywheel ring design provides a smoother riding experience, enhancing your cycling performance. Made with lightweight stainless steel, our Bike Cassette is easy to carry and transport, perfect for outdoor adventures. Our Freewheel is easy to operate, making it suitable for both beginners and professional riders. Simple in design, but very practical in use, which brings great convenience to you.