A reliable 7 speed screw-on freewheel from Shimano, ideal for Mountain and Hybrid Bikes. This free...A reliable 7 speed screw-on freewheel from Shimano, ideal for Mountain and Hybrid Bikes. This freewheel features Hyperglide gear sprockets for accurate and smooth shifting. It's a compact and convenient unit for 7-speed gear systems, with a multi-freewheel design that simply screws onto a compatible hub. Suitable for a wide range of bikes and a direct replacement for Shimano Freewheel - MF-TZ21. Available in 14-28 Tooth or 14-34 Tooth sizes. Engineered for smooth chain movement up or down the block.
This guide provides essential information for users of the Shimano 7-Speed Freewheel, specifically the 14-28 Tooth model, suitable for mountain and hybrid bikes. It's designed for riders seeking a reliable and smooth-shifting freewheel to replace existing components. Note that this freewheel is designed for 7-speed systems only and requires a compatible hub.
All features
Model Part Number
MF-TZ500
Brand
SHIMANO
Extended Product Information
FAQs
What tools are required for installation?
You'll need a freewheel removal tool, a chain whip (optional), and possibly a cassette lockring tool, depending on your hub setup.
How often should I lubricate the freewheel?
Lubricate the freewheel every few rides or as needed, depending on riding conditions.
How do I know if my hub is compatible?
If your hub is designed for a screw-on freewheel and has the appropriate threads, it should be compatible. Check the hub's specifications if unsure.
What is Hyperglide technology?
Hyperglide is Shimano's technology designed to provide smoother and more accurate shifting performance by optimizing the shape of the sprockets and chain interaction.
How do I clean the freewheel?
Use a brush and degreaser to remove dirt and grime. Rinse with water and dry thoroughly before re-lubricating.
What is the lifespan of this freewheel?
The lifespan depends on usage and maintenance. With proper care, it should last for many miles. Regular inspection for wear is recommended.
Troubleshooting
Difficulty shifting gears.
Check and adjust the derailleur indexing. Ensure the chain is clean and properly lubricated.
Chain skipping or slipping.
Inspect the freewheel and chain for wear. Replace worn components as necessary. Check alignment.
Freewheel not spinning freely.
Check for debris or obstructions. If the issue persists, the freewheel may need to be replaced.
Pros and Cons
Pros
Smooth and accurate shifting with Hyperglide technology.
Easy installation due to the screw-on design.
Durable and reliable for various riding conditions.
Direct replacement for a common Shimano freewheel model.
Compatible with a wide range of mountain and hybrid bikes.
Cons
Limited to 7-speed systems only.
Requires a compatible hub for installation.
May require specific tools for removal and installation.
Not suitable for bikes with different speed configurations.
Performance depends on correct hub and chain compatibility.
Setup, Compatibility & Care
Compatibility: This freewheel is only compatible with 7-speed drivetrains and hubs designed for screw-on freewheels. Ensure your hub is compatible before installation. Check that your chain is also compatible with a 7 speed freewheel.
Installation:
Remove the old freewheel using the appropriate freewheel removal tool.
Clean the hub threads.
Screw the new freewheel onto the hub by hand, then tighten it with the correct tool to the manufacturer's recommended torque.
Ensure the freewheel is securely fastened.
Care: Regularly clean the freewheel to remove dirt and debris. Lubricate the chain and freewheel periodically to maintain smooth shifting and extend the lifespan of the components. Check for wear and tear, and replace the freewheel as needed.