390415 ECO HEAD SET 1″ 22.4/30.0/27.0MM BLACK – AVAILABLE IN SELECTED BIKE SHOPS
| affix | Eco 1a |
| colour | black |
| Material general | Steel |
| head set size | 1″ |
| position of ball bearing | external ball bearing cups |
| height | 34,3 mm |
| head set upper part SHIS | EC 30/25,4 |
| head set lower part | EC 30/27 |
| inner diameter | 25,4 mm |
| outer diameter of the (upper) bearing shell (B1) | 30 mm |
| outer diameter of the lower bearing shell (B2) | 30 mm |
| cone seat on the fork | 27 mm |
| upper, inner diameter of the lock nut | 22,4 mm |
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