Thread: Cranksets: DA vs Record/PW.
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Old 11-07-12 | 05:38 AM
  #26  
Chesha Neko's Avatar
Chesha Neko
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Originally Posted by carleton
7700 has needle bearings.
7710 has sealed bearings.

I've owned both.

Here is the correct techdoc for BB7710: http://techdocs.shimano.com/media/techdocs/content/cycle/EV/bikecomponents/BB/EV-BB-7710-1786B_v1_m56577569830728740.pdf
Thanks for the link.
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