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Shimano GRX PD-M8100 pedals

107 
RRP 135 
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From 27.01.2026 (Tuesday) Check availability
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By courier to your home Express courier delivery DPD Express courier delivery GLS
Delivery method on Wednesday 28.01.2026
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Delivery method on Wednesday 28.01.2026
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Extended return option up to 100 days More info
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Shimano GRX PD-M8100 SPD clipless pedals

Product features
The pedals have a new and larger contact surface that helps stability when pedalling
Improved durability of the axle
Increased overall lifetime of the axle and bearing
Product details
Colour black
Package contents pedals PD-M8100, cleats SM-SH51
Switching technology SPD
Weight 340 g
Material body: AL alloy, axle and lock: Cr-Mo steel
product ID 288831
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WARNING
For assistance with installation, adjustment and replacement of the products which are not found in the user’s manual, please contact the place of purchase or a distributor. A dealer's manual for professional and experienced bicycle mechanics is available on our website (https://si.shimano.com).
For safety, be sure to read this "user's manual" thoroughly before use, follow it for correct use, and keep it in a safe place for later reference.
The following directions must be observed at all times in order to prevent personal injury, damage to property or the surrounding environment. Directions are classified according to the degree of danger or damage which may occur if the product is used incorrectly.
DANGER - Failure to follow the directions will result in death or serious injury.
WARNING - Failure to follow the directions could result in death or serious injury.
CAUTION - Failure to follow the directions could cause personal injury, or physical damage to equipment and surroundings.

WARNING
- In order to ensure the safety of children using this product, guardians should instruct children in the proper use of the product after guardians and children fully understand the information in this manual. Failure to do so may result in serious injury.
- Do not disassemble or modify the product. It may cause the product to not operate correctly, and you may fall unexpectedly and be seriously injured.
- Before attempting to ride with these pedals and cleats (shoes), be sure that you understand the operation of the engagement/release mechanism for the pedals and cleats (shoes). SPD pedals are designed to release only when needed. They are not designed to release automatically in the event of a fall from your bicycle.
- Use only SPD-compatible shoes with this product. Other types of shoes may not release from the pedals, or may release unexpectedly.
- Use only SHIMANO cleats (SM-SH51 / SM-SH56) and securely tighten the mounting bolts to the shoes. If the bolts are not securely tightened, the foot may not be able to release from the pedals, resulting in a fall.
- Before you attempt to ride with these pedals and cleats, apply the brakes, then place one foot on the ground and practice engaging and releasing each cleat from the pedal until you can do so instinctively and with minimal effort.
- Practice riding on a level surface first until you become adept at engaging and releasing the cleats from the pedals.
- Before riding, adjust the cleat retention force on the pedals to your preference. If the cleat retention force on the pedals is weak, the cleats may release accidentally, you may lose your balance, and you may fall off the bicycle. If the cleat retention force on the pedals is strong, the cleats may not release easily.
- When riding at low speed or when there is a possibility that you may need to stop (for example, when making a U-turn, at an intersection, when riding uphill, or when cornering sharply), release the cleats from the pedals beforehand so that you can quickly put your feet on the ground at any time.
- When riding in adverse conditions, use a lighter cleat retention force to secure the pedal cleats.
- Keep cleats and bindings free of dirt and debris to ensure proper engagement and release.
- Be sure to periodically inspect the cleats for wear. When the cleats are worn, replace them and adjust the cleat retention force on the pedals before riding and after replacing the pedal cleats.
- If you do not heed the above warnings, your shoes may not disengage from the pedals when you intend them to, or they may disengage unexpectedly or accidentally, possibly resulting in serious injury.
- When riding on roadways, be sure to install reflectors on the bicycle. Reflectors are sold separately for models that are not equipped with reflectors as standard equipment. Consult the place of purchase or a distributor for information on compatible reflectors.
- If the reflectors are dirty or damaged, do not continue riding the bicycle. If you do, it may be difficult for oncoming vehicles to see you.

Models with pins for adjusting the gripping force:
- If you are unsure about how to adjust the pins on the pedals, consult the place of purchase or a distributor.
- Lift your feet off the pedals and move them to the side to release them from the pedals. Place one foot firmly on the ground and practice putting the other foot on and off the pedal until you get used to the whole action. Otherwise, you may fall and be seriously injured. If you cannot get used to this action, use the product with the spacers installed.
- Wear clothing and protective gear that are appropriate for the way you use the bicycle. Because the spikes are very long, they may cause serious injury if they come into contact with the skin.

Japanese manufacturer produces road, mountain, gravel, trekking, BMX and e-bike groupsets. They also offer a whole series of components and apparel. Their range goes from wheels, footwear, eyewear to backpacks. Shimano is a traditional manufacturer known for their quality work, which is why they are the favourite choice of amateurs and professionals.

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