Shimano MF-TZ31 (11-28T)
Shimano MF-TZ31 7-speed threaded freewheel with 11-28T cog range. The most common freewheel for hub motor e-bike conversions — threaded freewheels screw directly onto a threaded hub shell (no cassette body required). Compatible with virtually all geared rear hub motors that accept a 7-speed freewheel. Works with 7-speed derailleurs and shifters.
In brief: 7-speed cassette. 11-28T range. From $10.
Specs verified Jun 10, 2026
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Specifications
Specifications
- Speed Count
- 7-speed
- Cog Range
- 11–28T
- Freehub Type
- Threaded (Screw-on Freewheel)
Physical
- Weight
- 280 g
