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Operation
Braking operation
Gear shifting operation
Be sure to keep turning the crank during the lever operation.
Caution on operation
Both lever A and lever B always return to the start position when they are released after
shifting.
Do not push levers A and B simultaneously. When the levers are pushed simultaneously,
the gears will not shift.
* Some models allow two-step gear shifting.
Operation of levers
Front
Shifts from
Lever A
smaller to
start position
larger
sprocket
Shifts from
larger to
Lever B
smaller
start position
sprocket
Operate the lever C in the direction
1
indicated with the arrow
2
Adjust the height of the seat
Release the lever once the seat is at the
3
appropriate height
Trimming (noise prevention mechanism) operation
If the front derailleur comes into contact with the chain and makes noise, perform the following
operation to eliminate the noise.
Chain
position
Largest
chainring
Rear
Smaller
sprockets
Smallest
chainring
2 Click
Lever A
start position
1 Click
Smaller
sprockets
5
4 3
1
2
Lever B
start position
4 3
ST-RX810-LA
Lever C
start position
1
2
Trimming
Trimming
Chain
operation
operation
position
Lever operation
Lever operation
Largest
chainring
Lever A
Lever B
Larger
sprockets
Smallest
chainring
Click
(Hits)
(Hits)
Larger
sprockets
Click
One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003
High Tech Campus 92, 5656 AG Eindhoven, The Netherlands Phone: +31-402-612222
3-77 Oimatsu-cho, Sakai-ku, Sakai City, Osaka 590-8577, Japan
Please note: specifications are subject to change for improvement without notice. (English)
© May 2019 by SHIMANO INC. ITP
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