Shimano Ultegra ST-6870 Dealer's Manual page 56

ADJUSTMENT
Adjustment of the front derailleur
Use an Allen key to turn the low
adjustment bolt.
2
Adjust so that there is a clearance of 0 -
0.5 mm between the chain and the chain
guide inner plate.
3
Top adjustment
Set the chain onto the largest chainring
and the smallest sprocket.
1
Use an Allen key to turn the top
adjustment bolt.
2
Adjust so that there is a clearance of 0.5
- 1.0 mm between the chain and the
chain guide outer plate.
3
To be continued on next page
0 - 0.5 mm
(A) (B)
0.5 - 1.0 mm
56
(A)
Smallest sprocket
(B)
Largest chainring