Quick Summary
This is a pack of 4 bike crank bearing retainer cages for traditional bottom bracket crank service. The stated size is 5/16″ x 7 balls, so the key purchase check is whether that matches your original part.
The set is aimed at bicycle crank and bottom bracket replacement use, including loose bearing replacement when the size is the same. Because the fit depends on the original parts, measuring before ordering is the most important step.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Product type | Bike crank bearing retainer cages for traditional bottom bracket crank service. |
| Size | 5/16″ x 7 balls, which must match the original bearing size. |
| Pack quantity | Pack of 4 pieces for replacing more than one bearing cage. |
| Material | Carbon steel, a stated construction detail for the bearing cages. |
| Use case | Replacement parts for bicycle crank and bottom bracket service, including loose bearings where the size matches. |
What to Compare Before Buying
- Bearing size: Compare the 5/16″ x 7 size with your original part before choosing an offer.
- Pack quantity: This set includes 4 pieces, so confirm that quantity matches the repair you plan to make.
- Replacement type: These are retainer cages for crank service, so check that this is the part style you need.
Before You Decide
Confirm the bearing size, the pack of 4 quantity, and whether your repair calls for a retainer cage rather than a different bottom bracket part before choosing an offer. If your original part uses a different size, this set will not be the right match.
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