Shimano DURA-ACE FC-R9100 Dealer's Manual page 5

TO ENSURE SAFETY
Be sure to also inform users of the following:
• Be sure to keep turning the crank during lever operation.
• When the chain is in any of the positions shown in the illustration, the chain may come into contact with the front chainring or front derailleur and
generate noise. If the noise is a problem, shift the chain onto the next largest sprocket or the one after.
Chainring
Sprocket
• Before riding the bicycle, check that there is no play or looseness between connecting parts. Also, be sure to retighten the crank arms and pedals at
periodic intervals.
• Use a neutral detergent to clean the crank arm and the bottom bracket. Using alkaline or acidic detergents may cause discoloration.
• If pedaling performance does not feel normal, check the bicycle once more.
• Do not wash the bottom bracket with high-pressure jets of water. Water may enter the bearing section and cause noise or adhesion.
• The gears should be periodically washed with a neutral detergent. In addition, cleaning the chain with neutral detergent and lubricating it can be an
effective way of extending the life of the gears and the chain.
• The cuffs of your clothing may get dirty from the chain while riding.
• This product is not warranted against damage resulting from improper use, such as jumping while riding or if the bicycle falls over, except if such
malfunctions are caused by manufacturing methods.
• Products are not guaranteed against natural wear and deterioration from normal use and aging.
• For maximum performance we highly recommend Shimano lubricants and maintenance products.
NOTE
Double
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