Shimano BB-UN300
$15.99
Details
- Simple and reliable square taper bottom bracket
- Replaces both BB-UN26 and BB-UN55
- Sealed cartridge bearings
- Cr-Mo axle
- For bicycles equipped with a chain case, select BB-UN300-K
- For E-type front derailleur compatibility, choose BB-UN300-E
- Fixing bolts not included; Shimano FC-E6000 bolts suggested
Part Numbers
| Option | UPC | MPN | Store SKU |
|---|---|---|---|
| Silver / 115mm / English / Square Taper / 68mm | 192790619187 | EBBUN300B15B | BBS30181377R |
| Silver / 118mm / English / Square Taper / 68mm | 192790619231 | EBBUN300B18X | BBS30101826R |
| Silver / 122.5mm / English / Square Taper / 73mm | 192790622194 | EBBUN300C23X | BBS31817381R |