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Shimano

Shimano Ultegra FC-R8100 cranks, HT II, 50/34T, 2x12

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209 € - 259 € savings
RRP 299 €
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Shimano Ultegra FC-R8100 cranks

Optimal balance of stiffness, strength, weight and rotational performance. The HOLLOWGLIDE derailleur structure reduces weight but maintains strength for better power transfer and faster, more precise shifting.
Product features
Recommended bottom bracket: SM-BBR60, SM-BB7241B
Technologies used: Hollowtech II, Hollowglide
Product details
Groupset Shimano Ultegra
Gears 2x12
Crank length 170 mm, 172.5 mm, 175 mm
Technical designation FC-R8100
Weight 711 g
Spacing 110 mm
Package contents right-hand crank with converters and left-hand crank
product ID 147846
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RMO RMO • 17 March 2024 at 8:46
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Variant Shimano Ultegra FC-R8100 kľuky, HT II, 50/34T, 2x12

SK Ultegra je v podstate to najlepšie pomer cena kvalita od Shimano výrobcu na cestu.

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17 March 2024 at 8:46
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riosos1 riosos1 • 8 July 2024 at 10:01
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Variant Shimano Ultegra FC-R8100 kľuky, HT II, 50/34T, 2x12

SK super ,cena versus kvalita

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8 July 2024 at 10:01
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jan.barlak jan.barlak • 7 March 2024 at 18:59
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Variant Shimano Ultegra FC-R8100 kľuky, HT II, 50/34T, 2x12

SK 5 hviezdiciek

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7 March 2024 at 18:59
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Janott Janott • 10 May 2022 at 10:10
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Variant Shimano Ultegra FC-R8100 kľuky, HT II, 50/34T, 2x12

SK 👍

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10 May 2022 at 10:10
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gjacint79 gjacint79 • 14 March 2026 at 16:36
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Variant Shimano Ultegra FC-R8100 kľuky, HT II, 50/34T, 2x12

14 March 2026 at 16:36
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Product questions
ukuledo ukuledo • 14 February 2022 at 11:15
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Variant Shimano Ultegra FC-R8100 kľuky, HT II, 50/34T, 2x12

SK Dobry den, aktualne mam na svojom biku verziu FC-6800 2x11s. Je mozne pouzit tieto kluky ktore su pre 12rychlostny system? Model 6800 uz neviem zohnat a chcel by som vymenit kvoli dlzke kluk. Dakujem

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14 February 2022 at 11:15
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customer-support customer-support Customer support • 14 February 2022 at 16:30 •replyukuledo
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SK Dobrý deň,

áno v tomto pripáde áno, môžete. Ak by to bolo opačne tak nie.

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14 February 2022 at 16:30
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filo18 filo18 • 16 February 2022 at 14:50 •replycustomer-support
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SK Zrejme je to mozne pouzit aj naopak kedze tak jazdi aktualne vacsina timov v pro tour

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16 February 2022 at 14:50
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LukinoZ LukinoZ • 7 January 2026 at 16:04
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Variant Shimano Ultegra FC-R8100 kľuky, HT II, 50/34T, 2x12

SK dobry den, mam momentalne v predu prevodnik 52/36 T a chcem ho zmenit za 50/34T ale mam sadu Shimano Ultegra RD-R8150 Di2. treba po vymene nieco nastavit? Dakujem

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7 January 2026 at 16:04
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gronkjear gronkjear Customer support • 8 January 2026 at 13:45 •replyLukinoZ
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SK Dobry den, pri prechode na inú veľkosť prevodníkov bude potrebné doladiť prešmykač - viď. postup od výrobcu: https://si.shimano.com/en/pdfs/dm/RAFD010/DM-RAFD010-01-ENG.pdf.

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8 January 2026 at 13:45
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LukinoZ LukinoZ • 8 January 2026 at 15:52 •replygronkjear
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SK Ďakujem, no ja to radšej nechám na váš servis a objednám sa. 🙂

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8 January 2026 at 15:52
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gronkjear gronkjear Customer support • 9 January 2026 at 19:16 •replyLukinoZ
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SK Budeme sa na Vás tešiť

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9 January 2026 at 19:16
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lukkas71 lukkas71 • 29 June 2022 at 19:31
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Variant Shimano Ultegra FC-R8100 kľuky, HT II, 50/34T, 2x12

SK Dobry den, mate prosim skusenost s pouzitim tychto kluk s 11r retazou+11r presmykovacom? Ide vsetko ako ma aj pri vysokych vykonoch?

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29 June 2022 at 19:31
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filo18 filo18 • 29 June 2022 at 19:34 •replylukkas71
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SK pouzivam dura ace 12....s presmykom ok ale retaz je lepsia 12tka...tichsie a vsetko funguje

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29 June 2022 at 19:34
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lukkas71 lukkas71 • 29 June 2022 at 19:40 edit •replyfilo18
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SK Cize kluky ultegra/dura ace 12, retaz 12, presmykac 11, prehadzovac 11, kazeta 11. Funguje to takto, bez kompromisov a ticho? Diky

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29 June 2022 at 19:40 edit
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filo18 filo18 • 29 June 2022 at 19:41 •replylukkas71
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SK ano este tichsie ako 11

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29 June 2022 at 19:41
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Davidl Davidl • 23 october 2024 at 16:59
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Variant Shimano Ultegra FC-R8100 kľuky, HT II, 50/34T, 2x12

SK Dobry den. Nahodou kluky s dlzkou 165mm sa nedaju zohnat? Dakujem za odpoved

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23 october 2024 at 16:59
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jaroslavf jaroslavf Customer support • 24 october 2024 at 8:29 •replyDavidl
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SK Dobrý deň,

Dodávateľ má na sklade 165mm kľuky vo verzii s prevodníkmi 52/36 no vedeli by ich prehodiť za 50/34. V prípade záujmu o objednanie nám napíšte na email [email protected]

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24 october 2024 at 8:29
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rryba74 rryba74 • 9 september 2022 at 14:17
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Variant Shimano Ultegra FC-R8100 kľuky, HT II, 50/34T, 2x12

SK Dobry den. Dali by sa objednat aj samotne prevodniky 50/34 na 12 kolo?

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9 september 2022 at 14:17
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jaroslavf jaroslavf Customer support • 12 september 2022 at 7:53 •replyrryba74
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SK Dobrý deň,

50 zubový prevodník Y0NG98010 vieme dodať do 3 týždňov od objednania za cenu 105 EUR. 34 zubový máme v ponuke https://www.mtbiker.sk/shop/komponenty/kluky-a-prevodniky/prevodniky/shimano-prevodnik-34z-r8100-ultegra-cierny-110mm.html

V prípade záujmu o objednanie prevodníka Y0NG98010 to prosím uveďte do poznámky k objednávke 34 zubového.

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12 september 2022 at 7:53
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majklbike majklbike • 13 september 2024 at 18:57
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Variant Shimano Ultegra FC-R8100 kľuky, HT II, 50/34T, 2x12

SK Môžem nahradiť s týmito klukami DuraAce FC7950 1KZIIR79889
Ďakujem.

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13 september 2024 at 18:57
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gronkjear gronkjear Customer support • 16 september 2024 at 14:32 •replymajklbike
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SK Dobry den,

fyzicky budu sediet, ale su urcene pre 2x12 rychlostne systemy, ak mate povodny 2x10-rychlostny setup, tak sediet nebudu.

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16 september 2024 at 14:32
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majklbike majklbike • 16 september 2024 at 15:18 •replygronkjear
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SK Já chcem vymeniť iba kĺuky.
Ďakujem s pozdravom Michal.

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16 september 2024 at 15:18
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Ondro44 Ondro44 • 4 august 2025 at 13:00 edit
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Variant Shimano Ultegra FC-R8100 kľuky, HT II, 50/34T, 2x12

SK Dobrý deň,
dá sa zohnať lavá kluka samostatne? 170mm
Ď.

Ondro

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4 august 2025 at 13:00 edit
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jaroslavf jaroslavf Customer support • 6 august 2025 at 8:32 •replyOndro44
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SK Dobrý deň,

Ľavú kľuku Y0NG98050 vieme objednať s dodacou dobou približne 2 týždne. Cena je 67,99 EUR. V prípade záujmu o objednanie dajte vedieť na email [email protected] a odkážte sa prosím na komunikáciu pri tomto produkte

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6 august 2025 at 8:32
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Ondro44 Ondro44 • 6 august 2025 at 8:48 •replyjaroslavf
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SK este sa opytam je lava kluka rovnaka aj pri 52/36T?
Ď.

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6 august 2025 at 8:48
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gronkjear gronkjear Customer support • 6 august 2025 at 8:51 •replyOndro44
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SK Ano, lava kluka je vzdy rovnaka bez ohladu na pocet zubov na prevodnikoch, rozdielna je vzdy teda samozrejme len dlzka daneho variantu.

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6 august 2025 at 8:51
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WARNING
For assistance with installation, adjustment, and replacement of products not found in the user's manual, please consult 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 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.

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 a 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 and do not touch the teeth of the sprockets. There is a risk of injury.

Shimano
Road and gravel 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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