Upgrade your mountain biking experience with this high-quality Bike Freewheel, expertly crafted from durable steel for exceptional strength, wear resistance, and anti-rust performance. Designed specifically for 10-speed mountain bikes, this freewheel ensures smooth chain rotation and reliable performance on every ride. Its hollow-out design significantly reduces weight, minimizing fatigue during long cycling sessions while also making cleaning quick and effortless. Compatible with chain rings ranging from 11 to 42 teeth, this freewheel is an ideal replacement part for bike enthusiasts seeking durability and efficiency. Key Features: · Premium Steel Construction: Provides high strength, anti-rust protection, and resistance to deformation, ensuring long-lasting durability even under rigorous use. · Lightweight Hollow-Out Design: Reduces overall weight to lessen rider fatigue during extended rides and simplifies maintenance with easy cleaning. · Smooth Chain Rotation: Engineered to guarantee seamless engagement with chains, compatible with chain rings between 11-42T for versatile gear setups. · Designed for 10-Speed Mountain Bikes: Perfectly tailored for 10-speed drivetrains, ensuring easy installation and optimal performance. · Ideal Replacement Part: A reliable and durable freewheel option for mountain bike enthusiasts looking to upgrade or replace worn components. Specifications: · Material: Steel · Color: As shown in pictures · Teeth: 11-42T · Applicable Bike Type: 10-speed mountain bike · Weight: Approx. 643g Package Includes: · 1 x Bike Freewheel This Bike Freewheel combines strength, lightweight design, and smooth functionality to enhance your cycling performance. Whether replacing an old freewheel or upgrading your bike, it offers dependable quality and easy installation for mountain biking enthusiasts.