# Shimano BB-UN55 Square Spindle Bottom Brackets Fits JIS Square-Taper Cranksets Hollow spindle Crankarm fixing bolts not included Item Specifications Weight 330 BB/Frame Interface English Spindle Interface Type Square Taper JIS BB Shell Width 73 Defined Color Silver Bottom Bracket Shell I.D. 1.37" Spindle Length 113

**Manufacturer:** Shimano  
**MPN:** `un55`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Shimano |
| Manufacturer name | Shimano |
| Manufacturer | Shimano |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Walmart | 51752711 | 23.06 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/132000000/132109500/part_--un55---Shimano--21b67f6724.json`  
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