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Learn everything you need to know about bottom bracket standards, types and compatibility in this comprehensive guide from BikeRadar.
Dec 13, 2023 · The bottom bracket is the part that goes through the bottom part of the frame, known as the bottom bracket shell, and connects the crankset to the bike. Without the bottom bracket, there would be nothing to support the crank arms and the arms would not turn. It’s an unheralded, but integral part of your bike’s drivetrain.
Feb 16, 2024 · The bottom bracket is a cylindrical component that holds your cranks together via their axle and lets them freely rotate using a bearing assembly. It sits in the bottom bracket shell, or BB shell (“BB” being a common abbreviation for bottom bracket).
Nov 23, 2022 · The bottom bracket of a bicycle is the lynchpin that allows riders to pedal. These components either screw or press into a frame to attach cranksets and enable them to spin. At first glance, a...
Bike bottom brackets are divided into threaded bottom brackets, press fit models, and adapters/converters. Cheaper bikes are usually fitted with threaded BBs; more pricey bikes—especially high end ‘racing’ bikes—use press fit.
Learn the basics of bottom bracket, the crucial part of your bike that connects the crankset to the frame.
Jan 7, 2024 · The bottom bracket acts as a central axis for the pedal cranks and enables efficient power transfer from your legs to the bike’s drivetrain. By providing support and reducing friction, a properly functioning bottom bracket ensures smooth pedaling and enhances overall performance.
May 31, 2023 · Delve into the comprehensive guide to bottom brackets and gain a deep understanding of this crucial bicycle component. From the different types and sizes to compatibility, maintenance, and installation tips, this guide covers all the essential information you need to make informed decisions about bottom brackets.
Jun 15, 2022 · Bottom brackets should be seen and not heard. Unfortunately, that’s not always the case, and a simple component used to attach the cranks to the frame can cause issues. And when it comes time to replace a worn bottom bracket, it can be mystifying trying to get the correct replacement.
Oct 23, 2013 · What is a Bottom Bracket (BB)? The bottom bracket connects the crankset to the frame and incorporates bearings which allow the cranks to freely spin. It features either a spindle or capacity to incorporate a spindle to which the crank arms, chainrings and pedals are attached.
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