Efficient Power Transmission Bottom Bracket Bottom Brackets Adapter BB51 BB70 BB91 Bicycles Crank Middle Axles Enduring Multicolor

€52.95
FREE Shipping
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Efficient Power Transmission Bottom Bracket Bottom Brackets Adapter BB51 BB70 BB91 Bicycles Crank Middle Axles Enduring Multicolor

Efficient Power Transmission Bottom Bracket Bottom Brackets Adapter BB51 BB70 BB91 Bicycles Crank Middle Axles Enduring Multicolor

  • Brand: Unbranded
Sold by:

Efficient Power Transmission Bottom Bracket Bottom Brackets Adapter BB51 BB70 BB91 Bicycles Crank Middle Axles Enduring Multicolor

  • Brand: Unbranded

€52.95

In stock
FREE Shipping

14-Day Returns Policy

Sold by:

€52.95

In stock
FREE Shipping

14-Day Returns Policy

Payment methods:

Description

Efficient Power Transmission Bottom Bracket Bottom Brackets Adapter BB51 BB70 BB91 Bicycles Crank Middle Axles Enduring Multicolor

Features: The hollow steel shaft and external bearing design provide strong stepping rigidity and direct force transmission, reducing force loss and making it more efficient than traditional square hole/spline shafts. Adopting sealed bearings, dustproof and waterproof, suitable for complex road conditions. All of it are modularization designs, and the bearings can be replaced separately, with low maintenance costs and extended overall service life. Threaded Connection design enhances lateral stability to avoid creaking sound. BB51/BB70 are threads (34.8x1.37x24TPI), suitable for 68mm (highway)/73mm (mountain) tees; BB91 is suitable for 86.5mm (highway)/91.5mm (mountain) press in type five joints, with strong versatility. Specifications: Component: Aluminum alloy Size: about 4x3cm/1.57x1.18inch Package Includes: 1pc Bottom Brackets Adapter note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.
  • Fruugo ID: 451157654-951488090
  • EAN: 7920037025735

Delivery & Returns

Dispatched within 24 hours

  • STANDARD: FREE - Delivery between Tue 20 January 2026–Fri 23 January 2026 - FREE

Shipping from China.

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Product Compliance Details

Please see the compliance information specific to this product outlined below.

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Manufacturer
The following information outlines the contact details for the manufacturer of the relevant product sold on Fruugo.

  • Shenzhen Jianming Technology Co., Ltd.
  • Shenzhen Jianming Technology Co., Ltd.
  • 611, 6th Floor, Longsheng Commercial Building, Dalang Street
  • Shenzhen
  • China
  • 518000
  • teow5smeqa@163.com
  • 18818900735

Responsible Person in the EU
The following information outlines the contact information for the responsible person in the EU. The responsible person is the designated economic operator based in the EU who is responsible for the compliance obligations relating to the relevant product sold into the European Union.

  • Yating He
  • E-CrossStu GmbH
  • 69 Mainzer Landstrasse
  • Frankfurt am Main
  • Germany
  • 60329
  • E-crossstu@web.de
  • +4969332967674