Bicycle drive unit

Bicycle drive unit

  • CN 105,083,463 A
  • Filed: 05/06/2015
  • Published: 11/25/2015
  • Est. Priority Date: 05/21/2014
  • Status: Active Application
First Claim
Patent Images

1. a Bicycle drive unit, it drives bicycle for power-assisted, possesses:

  • Crank shaft;

    AndShell, it has;

    the Part I that the synthetic resin supporting described crank shaft is respectively made and Part II, and to be configured between described Part I and described Part II and jointly to form the metal Part III of inner space with described Part I and described Part II.

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