Shimano Ultegra FC-R8100-P crankset with power meter, 172.5 mm, 2x12, 52/36T

WARNING
For installation, adjustment and replacement information not found in the user's manual, consult the place of purchase or a distributor. A dealer's manual intended for professional and experienced bicycle mechanics is available on our website (https://si.shimano.com).
For safety, be sure to carefully read this “user's manual” before use, follow it for correct use, and save it so that you can refer back to it at any time.
The following instructions should always be followed in order to prevent personal injury, physical damage to equipment and the surrounding environment. The instructions are classified according to the degree of danger or damage that may occur if the product is used incorrectly.
DANGER - Failure to follow the instructions will result in death or serious injury.
WARNING - Failure to follow the instructions could result in death or serious injury.
CAUTION - Failure to follow the instructions could result in personal injury or physical damage to equipment and the surrounding environment.

DANGER
- Use the specified charging cable when charging the battery. Using any other items may result in fire, overheating, leakage, or damage to the connected PC.
- Prevent the charging cable from getting wet, and do not touch or hold it while it is wet or if you have wet hands. Failure to observe this may result in operational problems or electric shock.
- Use an AC adapter with a USB port with a voltage of 5.0 V DC and a current value of at least 0.5 A DC. If you use an adapter with a current value of less than 0.5 A, the AC adapter may overheat and cause fire, smoking, heating, damage, electric shock, or burns.
- Do not heat the battery or throw it into a fire. Failure to observe this may result in fire or bursting.
- Do not use or leave the battery in hot or humid places where the battery may be exposed to direct sunlight, in a closed vehicle on a hot day, or near a heater. Failure to observe this may result in leakage, overheating, or bursting, which may result in fire, burns, or other injuries.
- Do not disassemble or modify the battery; also, do not apply solder directly to the battery terminals. Failure to observe this may result in leakage, overheating, or bursting, which may result in fire, burns, or other injuries.
- Do not touch metal terminals with metal objects such as hairpins. Failure to observe this may result in short circuits, overheating, burns, or other injuries.
- If fluid leaking from the battery gets into your eyes, immediately flush the affected area with water without rubbing your eyes, and then seek medical attention. Failure to observe this may result in blindness.

WARNING
- Do not disassemble or modify the product. This may cause the product to malfunction, you may fall unexpectedly and be seriously injured.
- Before riding the bicycle, check that the crank arms are not cracked. If there are any cracks, the crank arm may break and you may fall off the bicycle.
- Be careful that parts of your clothing do not get caught in the chain while riding, otherwise you may fall off the bicycle.
- Always grasp the cable plug when connecting or disconnecting the charging cable. Failure to do so may result in fire or electric shock.
- Do not leave this product in an extremely high temperature environment, such as in a closed vehicle on a hot day, or near a heater. This may cause the built-in battery to explode or flammable liquid or gas to leak from it.
- Do not expose this product to extremely low air pressure. This could cause the built-in battery to explode or flammable liquid or gas to leak from it. Air transport of this product is not a problem.
- If the following symptoms occur, stop using the device and contact the place of purchase. Fire or electric shock may occur.
* If a pungent smoke comes out of the power plug or the plug heats up.
* There may be a bad connection inside the power plug.
- Do not touch the device, bicycle, or AC adapter if it thunders while charging with an AC adapter with a USB port. Electric shock may occur due to lightning strike.
- Do not use a USB hub to connect the cable to the PC's USB port. Charging failure or fire due to overheating may occur.
- Be careful not to damage the charging cable. Do not damage them, modify them, bend them forcibly, twist or stretch them, place them near hot objects, place heavy objects on them, or tie them tightly together. If used in a damaged condition, fire, electric shock, or short circuit may occur.
- If the battery does not fully charge after 4 hours of charging, stop charging. Failure to observe this may result in fire, bursting, or overheating.
- When disposing of this product, follow all federal, state, and local environmental regulations because it contains a battery. Disposal of this product into a fire or a hot oven, or mechanically crushing or cutting it, may result in an explosion of the built-in battery.
- Do not immerse the product in fresh or salt water, etc., and prevent the terminals from getting wet. Failure to observe this may result in fire, bursting, or overheating.
- Do not use the battery outside the specified operating temperature ranges. If the battery is used or stored at temperatures outside these ranges, fire, injury, or operational problems may occur. The operating temperature ranges are listed below.
1. During discharge: -10 °C – 50 °C
2. During charging: 0 °C – 45 °C
- Do not subject the product to strong impact or throw it. Failure to observe this may result in bursting, overheating, or operational problems.
- Do not use the battery if it shows leakage of liquid, discoloration, deformation, or other atypical signs. Failure to observe this may result in bursting, overheating, or operational problems.
- If leaking liquid gets on your skin or clothing, immediately clean them with clean water. Leaked liquid may damage the skin.
- Keep the magnet supplied with this product away from magnetic cards, medical devices, inspection instruments, etc. This may cause data loss or malfunction.

CAUTION
- Be careful and do not touch the teeth of the sprockets. There is a possibility of injury.
- Store in a safe place out of the reach of small children to prevent accidental swallowing.
- This product contains a powerful magnet and should be handled with care. There is a risk of trapping and injuring your hand or fingers.
- Prevent grease from adhering to the metal terminals. This may cause conduction failure.
- Do not leave the charging cable connected while performing maintenance.