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Shimano

Shimano SM-BB71-41B HTII bottom bracket, 41x86.5 mm Press Fit

17.99 € savings
RRP 28.99 €
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From 18.06.2026 (Thursday) Check availability
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Rating (17)
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4,8/5
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more than 200 customers
have already purchased this product

Press-Fit BB use 24 mm axle and bearings, because 24 mm diameter axle and
bearings offers the best balance of rotating performance, stiffness, strength, sealing, weight, for press-Fit type as well.

Product features

  • Use: Road
  • Model: SM-BB71-41B
  • BB-Type: Press Fit (41x24mm)
  • Press-Fit BB shell width: 86.5mm
  • Shell diameter: 41mm

Compatibility

  • Ultegra FC-6700 / FC-6700 G / FC-6750 / FC-6750G / FC-6703 / FC-6703G
  • 105 FC-5700 / FC-5750 / FC-5703
  • Tiagra FC-4600 / FC-4650 / FC-4603
  • Sora FC-3550 / FC-3503
  • FC-CX50
  • FC-R603 / FC-R563 / FC-R460 / FC-R350

Material

  • Resin

Weight

  • 71g

Scope of delivery

  • Shimano Hollowtech II Press Fit Bottom Bracket SM-BB71-41B

HOLLOWTECH II Technology

The concept of HOLLOWTECH II technology is focused on producing a superior crankset which will maximize a rider’s power transfer. The rigidity of the crankset ensures pedaling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances over which the rider needs to pedal more. Naturally, SHIMANO strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. HOLLOWTECH technology is an ultra-lightweight hollow crankarm created by SHIMANO with the company’s own proprietary forging technology that also maintains rigidity. The addition of HOLLOWTECH II technology integrates the bottom bracket axle with the right crankarm for more stiffness and a weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedaling stability, allowing for more efficient power transfer.

Product features
New design with improved sealing for long life
For frame width 86.5 mm
For installation, it is necessary to use the TL-BB12 bearing press
Product details
Specification MTB
Mount type BB86-89.5-92 Press Fit
Axis type for crankset HollowTech II (HTII) (⌀ - 24 mm)
Frame width 86.5 mm
For the diameter of the crank axis 24 mm
For inside. frame diameter 41 mm
Weight 63 g
Material aluminium
product ID 10273
Product rating  (17 ratings)
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Reviews verified Verified purchases
Scott66 Scott66 • 9 June 2022 at 9:31
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SK Stred som dal namontovať na synov gravel bike, zatiaľ funguje k úplnej spokojnosti.

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9 June 2022 at 9:31
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KH25 KH25 • 27 June 2022 at 9:44 edit
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SK Kvalitný spotrebák. Menil som po cca 2000km. Jazdím celoročne a často umývam.

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27 June 2022 at 9:44 edit
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peterporubsky peterporubsky • 22 october 2023 at 14:47
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SK fajn cena, klasicky spotrebak...dobre sa lisuje aj vylisovava

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22 october 2023 at 14:47
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IanPP IanPP • 2 March 2024 at 6:47
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SK Vymena za pôvodné po piatich rokoch. Zatia všetko ok

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2 March 2024 at 6:47
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lukaskacer lukaskacer • 6 december 2021 at 14:55
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SK Všetko sedelo bez problémov. Klasika od shimana.

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6 december 2021 at 14:55
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Baluka Baluka • 6 august 2025 at 19:20 edit
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HU Teljesen jó. KB 5000 km az élettartama.

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6 august 2025 at 19:20 edit
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janopriskin janopriskin • 10 January 2024 at 17:01
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SK Funguje vynikajúco, takže spokojnosť...

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10 January 2024 at 17:01
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erikvasko erikvasko • 20 May 2026 at 19:47
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SK Bol som maximálne spokojný so všetkým

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20 May 2026 at 19:47
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Matniksar Matniksar Customer support • 21 august 2024 at 11:58
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SK dobrá kvalita v pomere k cene,

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21 august 2024 at 11:58
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ivanko84 ivanko84 • 4 June 2023 at 21:12
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SK Kvalita, dlhodobost.

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4 June 2023 at 21:12
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tchebe tchebe • 18 october 2024 at 0:28
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SK predošlý kus nevydržal veľa, neviem podľa čoho je životnosť týchto osiek/ložísk

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18 october 2024 at 0:28
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Indy9o Indy9o • 4 May 2026 at 15:48
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SK slabá výdrž inač oka

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4 May 2026 at 15:48
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ondrejgenco ondrejgenco • 4 June 2026 at 9:18
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4 June 2026 at 9:18
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minoslavovic minoslavovic • 2 June 2026 at 13:56
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2 June 2026 at 13:56
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Koma80 Koma80 • 2 March 2026 at 16:54
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2 March 2026 at 16:54
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Stano55 Stano55 • 22 April 2025 at 19:23
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22 April 2025 at 19:23
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nibali nibali • 10 June 2025 at 7:10
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10 June 2025 at 7:10
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Add rating
Product questions
kecfec kecfec • 1 February 2024 at 12:24
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HU Szia!
Van egy Shimano BB-RS500-PB csapágyam.Ez megfelelő a cseréjéhez?
Ezt a két szerszámot néztem cseréhez,jók lesznek-e hozzá?
https://www.mtbiker.hu/shop/szerviz/szerszamok/tovabbi-szerszamok/super-b-tb-1929a-pressfit-es-kormanycsapagy-lehuzo-szerszam-p138142.html#description
https://www.mtbiker.hu/shop/szerviz/szerszamok/kozepcsapagy-kulcsok/super-b-pres-a-bb86-hajtomu-keverekhez-p191000.html
Válaszodat előre is Köszönöm!

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1 February 2024 at 12:24
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Bulony Bulony Customer support • 2 February 2024 at 9:52 •replykecfec
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HU Igen a középcsapágy és a hozzá választott szerszámok is megfelelőek.

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2 February 2024 at 9:52
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Romanprocka Romanprocka • 4 April 2019 at 21:21
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SK Dobrý deň, na svojom URC50 mam pouzite tieto loziska SM-BB71-41B a po velmi kratkom case cca 3000km sa zacali zvukovo prejavovat. Neviete mi poradit kvalitnejsiu nahradu ?

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4 April 2019 at 21:21
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customer-support customer-support Customer support • 5 April 2019 at 10:14 •replyRomanprocka
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SK Dobrý deň,

môžete vyskúšať vyšší model : https://www.mtbiker.sk/shop/komponenty/stredove-zlozenia/press-fit/shimano-loziska-stredove-htii-press-fit-cestne-fc9000-7900.html . Na výdrž má však vplyv mnoho faktorov a nieje možné určiť, ktoré zloženie vydrží viac.

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5 April 2019 at 10:14
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DusoM DusoM • 11 April 2020 at 9:47
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SK Dobrý deň, budú tieto ložiska pasovať na rám ktorý vyžaduje BB86 ložiska a zároveň budú vhodne pre Shimano FC R565 kluky? Ďakujem za odpoveď.
S pozdravom

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11 April 2020 at 9:47
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customer-support customer-support Customer support • 26 May 2020 at 21:20 •replyDusoM
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SK Dobrý deň,
ložiská sú kompatibilné.

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26 May 2020 at 21:20
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ron80 ron80 • 7 october 2019 at 10:37
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SK Dobry den. Aku je rozdiel medzi 71 a 72? Je to len novsi model alebo sa jedna o dlhsiu verziu ?

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7 october 2019 at 10:37
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customer-support customer-support Customer support • 9 october 2019 at 13:15 •replyron80
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SK Dobrý deň,

stredové zloženia sú rozmerovo rovnaké, model 72 je novší a mal by byť o pár gramov ľahší. Zároveň je určený primárne pre cestné bicykle, kým model 71 je vhodný skôr pre cyklokrosové bicykle.

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9 october 2019 at 13:15
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ron80 ron80 • 9 october 2019 at 13:59 •replycustomer-support
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SK Dakujem za odpoved.

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9 october 2019 at 13:59
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avidmatko avidmatko • 6 november 2022 at 18:12
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SK Dobrý deň
Prosim Vás aký ma priemer ta cast stredu, ktora sa lisuje do ramu?
ďakujem

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6 november 2022 at 18:12
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gronkjear gronkjear Customer support • 7 november 2022 at 10:51 •replyavidmatko
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SK Dobry den,

41 mm.

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7 november 2022 at 10:51
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tteplan tteplan • 12 august 2024 at 14:49
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SK Dobrý deň, viete my prosím poradit alternatívu na keramických ložiskách?

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12 august 2024 at 14:49
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gronkjear gronkjear Customer support • 14 august 2024 at 8:51 •replytteplan
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SK Dobry den prajem,

https://www.mtbiker.sk/shop/komponenty/stredove-zlozenia/lisovacie-pressfit/nova-ride-road-ceramic-bb86-24-mm-stredove-zlozenie-cierna-p191539.html

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14 august 2024 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 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 directions must be always followed in order to prevent personal injury, physical damage to equipment or surroundings. The 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 result in personal injury, or physical damage to equipment or surroundings.

WARNING:
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 riding the bicycle, check that there are no cracks in the crank arms. If there are cracks, the crank arm may break and you may fall off the bicycle.
Be careful not to allow items of clothing to get caught in the chain during riding. If you do, you may fall off the bicycle.

CAUTION:
Use caution and do not touch the gear teeth. There is a danger of injury.

Shimano
Press Fit 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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