BB-UN300 Vierkante trapas - BSA
€ 12,90 *
€ 21,95
Prijzen incl. btw excl. verzendingskosten
Shimano BB-UN300 Vierkante trapas - BSA
Beschrijving
De BB-UN300 van Shimano is de officiële opvolger van de Shimano BB-UN55 trapas en wordt nu geleverd met de tweede trapasdop van staal in plaats van plastic en biedt lagers van hogere kwaliteit.
Lagers zijn ABEC 3 in plaats van de eerder gebruikte ABEC 1 lagers.
- Huisbreedte: 68 mm
- Aasbreedtes: 107 mm, 110 mm, 113 mm, 115 mm, 117 mm, 118 mm, 122,5 mm, 127 mm
- Materialen: staal (as)
- Gaffelsteun: vierkant
- Opvolger van de Shimano BB-UN55 trapas
- Verschillende asbreedtes voor cranks en kettinglijnen
Eigenschappen
| Eigendom | Waarde |
|---|---|
| Huisvestingsnorm | BSA 68 mm |
| Aslengte | 107 mm, 110 mm, 113 mm, 115 mm, 117 mm, 118 mm, 122 mm, 122,5 mm, 127 mm |
| Kleur | Zilver |
BB-UN300 Vierkante trapas - BSA
€ 12,90 *
€ 21,95
Prijzen incl. btw excl. verzendingskosten
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"Correct but..."
Quality is correct, shaft bearings and seals seems to be good stuff.
But the outer ring of left bearing was not perfectly centered with the centre steel spacer on mine, so when tightening the left cup, the spacer scratched the cup and made aluminium shavings. I had to remove everything, clean and assemble again...
Plus be aware that:
- the threads of the cups are very long, you'll need probably to re-thread your frame further or file some threads on the cups;
- the shoulder on the right cup is smaller than usual: only 36 mm diameter, not compatible with all frames or chainguard brackets (Shimano BB-UN55 is Ø39-40 mm as a matter of comparison).
But the outer ring of left bearing was not perfectly centered with the centre steel spacer on mine, so when tightening the left cup, the spacer scratched the cup and made aluminium shavings. I had to remove everything, clean and assemble again...
Plus be aware that:
- the threads of the cups are very long, you'll need probably to re-thread your frame further or file some threads on the cups;
- the shoulder on the right cup is smaller than usual: only 36 mm diameter, not compatible with all frames or chainguard brackets (Shimano BB-UN55 is Ø39-40 mm as a matter of comparison).