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"Just make sure you get the right shell with and axle length. The best square taper BB on the market without spending a fortune"
Shimano BB-UN300 bottom bracket British thread; 68 - 122.5 mm (LL123) - for chaincase
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£14.66
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£24.99
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- A good quality bottom bracket for traditional chainsets
- Super-accurate bearings for smooth operation and improved durability
- Durable, hard-wearing sealed cartridge bottom bracket with square tapered spindle fitting
- Maintenance-free sealed cartridge bearing assembly keeps out dirt, mud, and water for long bearing life
- Fast and easy installation without adjustment
- Narrow body allows clearance for cable routing under the bottom bracket
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