Quick Summary
This Partuto set is listed as four bicycle bearing retainers, with nine balls per retainer. The stated dimensions are 44 mm outer diameter and 33 mm inner diameter. Check the replacement part’s location, format, and dimensions before choosing these retainers.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Quantity | Four retainers are listed. |
| Ball count | Nine balls per retainer. |
| Dimensions | 44 mm outer diameter and 33 mm inner diameter. Compare both measurements with the part being replaced. |
| Product type | Described as a bicycle bearing retainer for replacement; the exact bearing location is not clear. |
What to Compare Before Buying
Check the existing component’s bearing location and format, and compare its inner and outer diameters with the stated measurements. Also confirm whether the replacement requires a nine-ball retainer. References to crank, wheel, and head parts do not establish that one retainer fits all of those locations or bicycle types.
Before You Decide
Confirm the exact component type and bearing location, both diameters, and the number of retainers needed. If you cannot identify the part being replaced, ask a bicycle mechanic to check the fit.









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