- Designed by DT Swiss with precise tolerances and the high end materials you expect
- Silicon nitride ball bearings are an extremely tough and durable ceramic material
- Precision ground steel alloy bearing rings are designed specifically for the ceramic bearings
- This combination reduces rolling resistance to an absolute minimum and provides high durability
| Specs: | |
|---|---|
| Bearing: | 6903 Special |
| ID X OD X W Mm: | 18x30x7mm |
Bearing upgrade for 240S hubs with 18mm O.D. axle








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