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25/02/2021

What is BBR60 bottom bracket?

What is BBR60 bottom bracket?

The Shimano SM-BBR60 is a bottom bracket of type BSA or ITA, which is recommended for Ultegra, 105, GRX, FC-CX70 and other Hollowtech II compatible cranks with 24 mm axle. It convinces with improved smooth running and low weight, but is just as durable as its predecessor.

Is Ultegra 6800 Hollowtech II?

It still stands for state-of-the-art technology, proven in pro races and the technology used in the Ultegra 6800 series with 11-speed has time tested durability. Shimano Hollowtech technology–Providing the best balance of stiffness, strength, weight, and rotating performance.

What is the difference between English and Italian bottom bracket?

The key difference is in how the two thread into the bottom bracket shell. Like pedals, one side of a BSA standard bottom bracket shell is reverse (left) threaded, while both sides of an Italian standard bottom bracket shell are regularly (right) threaded.

What bottom bracket does ultegra use?

The Shimano Ultegra 6800 bottom bracket is a threaded BB designed to work with Hollowtech II style Shimano Road chainsets. The TL-FC25 bottom bracket installation tool is not included.

What is an English thread bottom bracket?

The common threading for bottom bracket shells is called “English.” The left-side cup is a right-hand thread direction, which tightens clockwise and removes counterclockwise. The right-side (drive-side) thread is a left-hand thread, which tightens counterclockwise and loosen clockwise.

Are bottom brackets interchangeable?

Threaded bottom brackets use a shell with internal threads to hold threaded parts. Threaded bottom brackets shells have been made over time in various thread standards that are not interchangeable.

How much does a Shimano BBR60 bracket weigh?

The bottom bracket weighs in just around 76 grams, making it close to 15 grams lighter than its predecessor. In addition to the making the bottom bracket smaller and lighter, Shimano says that the design of the BBR60 reduces rotational friction by 50%.

Which is the bottom bracket of the Shimano Ultegra?

This is said to be due to advancements in Shimano’s sealing technologies. The Shimano Ultegra SM-BBR60 Bottom Bracket is available in one size and for either English (68mm) or Italian (70mm) threading.

Can a tiagra BB be fitted to an Ultegra BB?

The Ultegra BB fitted with no fuss and is a quality component, bearings are smooth as you would expect. Just one thing to bear in mind, if you are going from a Tiagra BB to the Ultegra one the external part with the grooves are smaller so my BB tool wouldn’t fit to tighten it. Apart from that small gotcha everything else is perfect!

Can a 6800 Ultegra be used with a Hollowtech II crankset?

The new 6800 series Ultegra bottom bracket is completely backwards compatible with any Hollowtech II crankset, making it the perfect match for any cyclist. Backwards compatible with older Road Hollowtech II cranksets such as FC-6600, FC-5600, FC-7900, etc.