Brake; For Installation To The Bicycle, And Maintenance - Shimano Ultegra ST-6870 Dealer's Manual

TO ENSURE SAFETY

Brake

„ Brake
• It is important to completely understand the operation of your bicycle's brake system. Improper use of your bicycle's brake system may result in a loss
of control or a fall, which could lead to severe injury. Because each bicycle may handle differently, be sure to learn the proper braking technique
(including brake lever pressure and bicycle control characteristics) and operation of your bicycle. This can be done by consulting your professional
bicycle dealer and the bicycle's owners manual, and by practicing your riding and braking technique.
• If the front brake is applied too strongly, the wheel may lock and the bicycle may fall forward, and serious injury may result.
• Always make sure that the front and rear brakes are working correctly before you ride the bicycle.
• The required braking distance will be longer during wet weather. Reduce your speed and apply the brakes early and gently.
• If the road surface is wet, the tires will skid more easily. If the tires skid, you may fall off the bicycle. To avoid this, reduce your speed and apply the
brakes early and gently.
„ Rear derailleur
Be sure to also inform users of the following:
• If gear shifting operations do not feel smooth, wash the derailleur and lubricate all moving parts.
• If there is a large amount of play in the pulleys which causes a lot of annoying noise, ask the place of purchase to replace the pulleys.
• If the chain keeps skipping, ask the place of purchase to replace the chainrings, sprockets and/or the chain.
• You should periodically wash the chainrings in a neutral detergent. In addition, cleaning the chain with neutral detergent and lubricating it can be an
effective way of extending the useful life of the chainrings and the chain.
• If the amount of looseness in the links is so great that adjustment is not possible, you should replace the derailleur.
„ For Installation to the Bicycle, and Maintenance:
• When the shifting switch is operated, the motor which drives the front derailleur will operate to the shifting position without stopping, so be careful
not to get your fingers caught.
< ST-6871 / SW-9071 / SW-R671 >
Points to note about the handlebars
• Handle inner diameter: 19.0 - 22.5 mm
• Handle outer diameter: 22.2 - 24.0 mm
• Applicable handlebars: Carbon fiber handlebars (with aluminum inserts where the brake levers are installed) or aluminum handlebars.
* Carbon fiber handlebars without aluminum inserts where the brake levers are installed cannot be used.
To be continued on next page
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