| BRAND | Ringspann |
| Product | P/N: FB 57 SF, Type: 4821-057500-030H33 |
| Description | Freilauf FB 57 SF |
| Internal code | IMP275929 |
| Weight | 2.8 |
| Custom code | 84836080 |
| Technical specification | FB 57 SF freewheel Hole D = 30 H7, groove 8JS10x3.3 |
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