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Product Information
Shimano Tiagra Hollowtech II Bottom Bracket Kit with British Thread
Shimano Hollowtech II Bottom Bracket Kit with British Thread,
Outboard bottom bracket cups for use with Tiagra FC4500,FC4503 and Compact FC4550 2 peice cap free design chainsets
Oversize axle and bearings
Suitable for mountain bikes
Minimal bearing interface gives superbly smooth rolling
British Thread
Weight : 130 grams approx
Picture of the actual product
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