FAST RIDING SPEED: Our cassette cog provides fast riding speed with less effort through optimized gearing. 1Pc High Strength Steel Bicycle Cassette Cog Road Bike Freewheel Parts for Fixed Gear (11 speed-11T) HIGH-STRENGTH STEEL CONSTRUCTION: Our cassette cog is constructed of high-strength steel with hard chrome plating processing, ensuring sturdiness, anti-corrosion, and high durability. 8-11 Speed MTB Road Bike Cassette Cog 11-13T Bicycle Providing fast riding speed with less effort needed. This enables you to ride faster and smoother, achieving optimal performance on any bike. HIGH-STRENGTH STEEL CONSTRUCTION: Our bicycle cassette cog is constructed of high-strength steel with hard chrome plating processing, ensuring sturdiness, anti-corrosion, and high durability. Features: Constructed of high strength steel with hard chrome plating processing, sturdy, anti-corrosion, high performance of durability. This versatile design ensures compatibility with a range of bikes, making it a great investment for any cyclist. High Strength Steel Cog Road Bike Freewheel, Cassette Cog Mountain Freewheel Parts for Fixed Gear Suitable for 7-10 Speeds hubs conversion. AND VERSATILE: The product is to use and applicable to mountain bike freewheels. Please purchase as needed. 8 Speed Cassette 1PC High Strength Steel Bicycle Cassette Cog Road Bike Freewheel Parts 12 Speed Cassette Discover the best io games for endless fun! Play exciting io games online and level up your gaming experience today This results in optimal performance and a longer lifespan. Packing Included: 1 * Freewheel Repairs Note: Before purchasing, please confirm whether your own flywheel can be used. Lightweight design adds no extra burden to your bike, while the scientific design increases contact area to protect the hub body. PRECISE INNER THREADING: The product's inner threading is finished with high precision, ensuring a close connection to your bike hub and smooth . Specification: Condition: Brand New Material: Steel Color: Shown as pictures Treatment: Hard chrome plating Type: 8 speed -11T / 8 speed -12T / 8 speed - 13T / 9 speed -11T / 9 speed -12T / 9 speed - 13T / 10 speed -11T / 10 speed -12T / 10 speed - 13T / 11 speed 11T / 11 Speed 12T / 11 speed 13T (Optional) Package Weight: Approx.