Shimano Tiagra 4600 Bottom Bracket
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$9.72
RRP $19.45 Save 50%
In Stock
Code: SMBB4600B
Shimano Tiagra 4600 Bottom Bracket. English thread
  • Outboard Bottom bracket bearing cups for use with Tiagra FC4600, FC4603 and Compact FC4650 2-piece cap-free design chainsets
  • Minimal bearing interface gives superbly smooth rolling
  • Required for installation of FC4600, FC4603and FC4650 chainset
  • British thread
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Easy to fit. Smooth and quiet. Great price!
This will last 3000 miles, why spend more!
Much smoother than my standard BB and there is a lot less flex with the bearings being so much further out. Also seems to assist with power transfer as my average speed has already increased. Highly recommend.
I needed one of these with Italian threads, easy to fit providing you have the installation tools. Works really with the my Sora triple chainset. A good buy.
Great design. Used these before, easy to install