SHIMANO ULTEGRA – Bottom Bracket – Threaded – HOLLOWTECH II – 68/70 mm shell width
With reliable SHIMANO bearings and seals, the SHIMANO ULTEGRA bottom bracket has a long service life.
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PRODUCT SPECIFICATIONS
Model No –Â SM-BBR60
Series –Â SHIMANO 105 5800 Series
Average weight –Â 77














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