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Shimano Ultegra FC-8100 derailleur, 34T, 2x12

16.09 €
RRP 18.99 €
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From 27.01.2026 (Tuesday) Check availability
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Ultegra converter 34 teeth for FC-R8100 cranks (12-speed). Without lead teeth for cranks with compact 50/34 teeth converters.

Type: ROAD, Total package weight: 100g, Number of teeth on the converter: 34, Converters: 12 speed, For the combination of converters: 50/34, Number of gears: 2x12, Pitch of converters: 110mm, black

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Product details
Colour black
Groupset Shimano Ultegra
Converter mounting BCD 110 mm
product ID 170754
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WARNING
For installation, adjustment and replacement information that is not found in the user's manual, please 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 read this "user's manual" thoroughly before use, follow it for correct use, and save it so that you can refer to it at any time.
The following instructions must always be followed in order to prevent personal injury and physical damage to equipment and the 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 environment.

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 your bicycle, check that the crank arms are not cracked. If there are cracks, the crank arm may break and you may fall off the bicycle.
Be careful not to get parts of your clothing caught in the chain while riding. Otherwise, you may fall off the bicycle.

CAUTION:
Be careful not to touch the teeth of the sprockets. There is a risk of injury.

Shimano
Chainrings Shimano
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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