7 Speed Freewheel And 21 Speed Cassette Gear Set For Mountain Cross And Road Bikes In Heavy Duty Steel, Rust Resistant Rear Hub Sprocket Replacement, Lightweight Performance Upgrade For Daily Trails

Heavy-Duty 7-Speed Freewheel and 21-Speed Cassette For MTB
✔️ Heavy-duty steel construction, corrosion resistant, 1 x freewheel set

This freewheel and cassette set provides a 7-speed rear gearing option that pairs with a standard hub to replace worn sprockets on mountain and road bikes. It's built for daily riding on trails and commuting, delivering durable performance.

✅ High-strength steel construction resists rust and deformation for durability.
✅ Fine thread design ensures close hub connection and smooth operation.
✅ Smooth rotation with minimal noise for quiet transmission.
✅ Provides fast riding speed with less pedaling effort.
✅ Suitable for mountain freewheel installation and daily maintenance.
✅ Weight: 430 g (15.2 oz); Size: 115 mm × 115 mm / 4.5 in × 4.5 in

💡 What is a freewheel and cassette set used for in mountain and road bikes, and why choose steel versions?

Steel versions are handy for everyday rides due to durability and long life. - Powerful, reliable power transfer for daily MTB and road riding
- Rust-resistant steel resists corrosion in harsh conditions
- Standard hub compatibility simplifies replacement
- Budget-friendly upgrade for daily trails and commuting