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- Shimano MF-TZ21 7 Speed Bike Screw-On Freewhe...
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Item #:
3272803
Shimano MF-TZ21 7 Speed Bike Screw-On Freewheel 14-28T
Item #:
3272803
0 ratings
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What Stands Out
Versatile Gearing
The Shimano MF-TZ21 offers a 7-speed system with a 14-28T gearing range, making it ideal for both flat terrains and hilly rides, ensuring smooth transitions for all cyclists.
Durable Construction
Built for longevity, the freewheel features high-quality materials that withstand wear and tear, delivering consistent performance and reliability over countless miles.
Easy Installation
Designed for screw-on attachment, this freewheel simplifies upgrades or replacements, allowing cyclists to quickly enhance their bike's performance without hassle.
Product Details
| Item Weight | 0.77 lbs (350 grams) |
Who Should Buy?
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Casual Cyclists
Ideal for occasional riders looking for a reliable and low-maintenance freewheel for leisurely bike rides.
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Entry-Level Bikers
Great choice for beginners needing an affordable and simple solution for their first bike gearing system.
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Budget-Conscious Users
Perfect for those on a tight budget who want a functional and dependable freewheel without high costs.
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Performance Racers
Not suitable for competitive cyclists requiring high performance and precision in gear shifting for racing.
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Mountain Bikers
Limited gear range may not meet the demands of rugged terrains and challenging off-road biking.
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Advanced Cyclists
Experienced riders may find this product too basic, lacking features needed for challenging and varied riding conditions.
Product Description
Shimano MF-TZ21 7 Speed Bike Screw-On Freewheel 14-28T
Have any Query? Chat with us
Customer Questions & Answers
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Question:
Which Shimano freewheel is this item?
Answer: It's the Shimano tz-500. -
Question:
What is the dimension across the cassette?
Answer: I use mine as a replacement for a six-speed freewheel and it works great!! With some tinkering I think I can use the smallest cog. Go to harriscyclery.net for great information. -
Question:
What freewheel tool is needed for this?
Answer: You would need the Park Tool Shimano/Sachs Aris/Sunrace/DNP Epoch Freewheel Remover. -
Question:
Is this an index freewheel?
Answer: Not sure what you mean by index, but it is a freewheel. -
Question:
How is the cassette held together?
Answer: Unfortunately, I don't know as I haven't received my Shimano Freewheel yet. The vendor said I will receive my freewheel between February 24th & March 17th. And I placed my order on January 12th. Go figure. Based on my personal experience with past freewheels, I'm assuming it's a threaded cog.
SHIMANO Cassettes & Freewheels Editorial Review
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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12 June 2026 · via Trustpilot
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