2024年6月18日 · “What is an eccentric bottom bracket and how does it work?” “Is an eccentric BB on my mountain bike or my single speed a good idea?” Those questions, and more, answered right here, in the most comprehensive guide to eccentric bottom brackets around.

2019年4月25日 · An eccentric bottom bracket is actually an adapter that holds English threaded bottom brackets and allows users to adjust the fore-to-aft position of the crankset to add tension to their chain. This is done by rotating the off-center (or eccentric) axle position within the round frame shell to move it forward and pull the chain taut.

Eccentric bottom bracket (EBB), for PF30 or BB30 frames. Convert your frame to a single-speed or fixed-gear setup with these simple to use bottom brackets.

The Problem Solvers Bushnell Eccentric Bottom Bracket is the industry leading design for chain tension adjustment on tandem and dedicated single speed bikes equipped with eccentric bottom bracket shells.

The ONER eccentric bottom bracket is designed for converting PF30 frames to single speed. The ONER has 12mm of adjustment, allowing for multiple cogs sizes to be used with the same chain length. ONER only fits frames with PF30 shells (46mm Internal diameter ).

American-made Bushnell Eccentric Bottom Brackets - The most reliable eccentric available for internally geared hubs, singlespeeds, and fat bikes.

Convert that "regular" rig to a singlespeed with our new Eccentric Bottom Bracket, and get to spinning! Made from single-block CNCed aluminum, these bottom brackets are designed to be used with any 24mm spindle, 2-piece cranksets, such as Shimano Hollowtech II, FSA, SRAM GXP, and many others.

A bottom bracket to fit every need. And if the model you need is not here, give us your details and we’ll design and produce the BB you have in mind to spec.

An eccentric bottom bracket is a device used to add tension to a bike chain or belt rather than a traditional derailleur. A standard bottom threads into the EBB insert in an off-center location, which allows tension to be increased or decreased by rotating the EBB clockwise or counterclockwise.

This Hayden Eccentric Tandem Bottom Bracket is a high-quality option for any tandem bike or tandem tricycle. It features a Square Taper - ISO spindle ... more type and is made of durable alloy material. The included Campagnolo Athena BB ensures a smooth and reliable ride.