14
Installing electrical parts
Names of parts
Down tube mount type
(F)
(G)
(E)
(B)
(H)
(G)
(I)
(K)
(J)
(L)
(M)
(N)
(C)
(D)
(O)
(A)
(A)
Battery*1
(B)
Battery mount
(C)
Drive unit
(D)
Drive unit cover
(E)
Crank arm
(F)
Chainring
(G)
Speed sensor*2
(H)
Shifting unit*3
(I)
Disc brake rotor
(J)
Switch unit (assist switch)
(K)
Switch unit (shifting switch) or shifting
lever
(L)
Electric wire
(M)
Cycle computer*4
(N)
Junction [A] (wireless unit)*4
(O)
Battery charger
*1 Depending on the frame, the battery may be installed at a location different from the position specified in the
figure.
*2 Attach it to one of the two locations specified in the figure.
*3 Electronic gear shifting: DI2 rear derailleur or motor unit + DI2 internal geared hub
Mechanical gear shifting: rear derailleur or internal geared hub
*4 Use either one.
