Shimano BB-MT800 - Replacing Double Chainrings (Type 3)

23
MAINTENANCE
Replacing chainrings
FC-M617 / FC-M617-B2 Double chainring type
1
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.
(A) Mark
(B) Crank arm
(C) Chain drop prevention pin
Tightening torque
12 - 14 N·m
(C)
(A)
(B)
2
Set the smallest chainring so that the marked side faces inward and the alignment tab is
positioned under the crank arm.
(A) Crank arm
(B) Alignment tab
Tightening torque
16 - 17 N·m
(A)
(B)