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Old 02-23-16, 04:19 PM
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Originally Posted by TimothyH View Post
The 7710 is noticeably heavier and has noticeably more drag when spun by hand.
The additional weight is from essentially what is doubled up bearing races. Looseball incorporates the BB cups themselves for races while cartridges have their own, in addition to what would've been looseball races that now instead function to envelope/ retain it). The drag is from bearing seals.

Adding to the discussion, the roadie, non NJS DA 7700 BB, is sealed cartridge. And fully backwards compatible.
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Originally Posted by veganbikes View Post
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