Shimano BB-RS500 Dealer's Manual - Page 16

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MAINTENANCE

Replacing chainrings

MAINTENANCE
„ Replacing chainrings
FC-R3000 / FC-R2000 / FC-R2000-CG
1
2
(A)
(B)
(C)
(A)
(B)
With the marked side of the largest
chainring facing outward, set the largest
chainring so that the chain drop
prevention pin is positioned under the
crank arm.
With the marked side of the smallest
chainring facing inward, set the smallest
chainring so that the alignment tab is
positioned under the crank arm.
16
(A)
Mark
(B)
Crank arm
(C)
Chain drop prevention pin
(A)
Crank arm
(B)
Alignment tab
Tightening torque
12 - 14 N·m