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Shimano UN55 bottom bracket

$ 20.00

The UN55 is a perfect choice when looking for an economical BB with sealed-cartridge bearings.

• 68mm English or 70mm Italian-threaded

• JIS square taper

• spindle length: 107mm, 110mm, 113mm

• requires Park Tool BBT-22 for installation & removal

• weight: 313g (110mm)

The crankset being used determines spindle length, not the frame. Please check what length the crank manufacturer recommends or measure your existing BB's spindle.

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