Durable and sturdy construction delivers long lasting performance with low rolling resistance to support faster riding. Precise and lightweight shifting: gear changes are smooth, reliable, efficient and stable, reducing effort and improving control. Clean and simple lubrication design: oil system is clean and easy to maintain, with a neat appearance, easy to wipe down, reduced dust buildup, and low aerodynamic drag. Offroad tires with deep tread: strong grip on loose or uneven surfaces, noticeable shock absorption, antisand performance, suitable for ordinary mountain offroad use, and capable of road riding when needed. Size, material and compatibility: built with strength materials for durability; available in multiple sizes to fit standard mountain bike configurations and ensure broad compatibility with common setups. Use scenarios: Trail riding on rocky or loose terrain: relies on deeptread tires for grip and a robust drivetrain for reliable shifting on climbs and descents. Mixedterrain cycling: combines offroad grip with onroad efficiency, enabling comfortable rides on gravel, dirt roads and paved sections. Daily commuting and recreational riding: durable construction and low rolling resistance support longer, more efficient daily rides with low maintenance needs.