The Shimano BB-UN300 delivers reliable performance in a compact design tailored for traditional chainset systems. Its sealed cartridge bearing assembly eliminates maintenance concerns whilst providing exceptional smoothness through precision engineering. The square tapered spindle ensures secure, tool-free installation without requiring adjustment. Built to withstand demanding conditions, the hard-wearing construction resists contamination from dirt and moisture, extending bearing longevity. The slender profile accommodates cable routing beneath the bottom bracket, making it an ideal choice for frames requiring tight clearances. British threaded and available in 68-113 mm sizes to suit various frame geometries.Discipline Urban & TrekkingColour SilverSize 68 – 113 mmBottom Bracket TypeBSA ThreadedWidth 68 mm
Shimano BB-UN300 Bottom Bracket British Thread, 68 – 113 mm
Original price was: $24.99.$7.50Current price is: $7.50.
