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Bicycle Chainsets & Bottom Brackets

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Do you want to know more about chainsets and bottom brackets?

Chainsets and bottom brackets are responsible for transferring the strength of the cyclist to the chain, which in turn transfers it to the rear wheel of the bike. They consist of one or more chainrings attached to the cranks at the end of which are located the pedals. There is one crank for the right leg and one for the left and they are mounted at 180 degrees from each other, joined by the bottom bracket.

Chainrings are a set of cogs that are responsible for making the bike chain move, transmitting the movement to the rear wheel through the cassettes. There are different sizes of chainrings to increase the drivetrain force and therefore adapt the gear to the different conditions of the terrain being cycled.

The bottom bracket can be described as the heart of the bike, since it is one of the most important parts of the bike, although it is not spoken so much about since it normally cannot be seen. Almost all bottom brackets are airtight and with the joints sealed, they are assembled under pressure and cannot be disassembled, but they can be greased to improve their performance.

These brackets do not allow for much maintenance or repair, which is why if they break,you usually have to replace the entire chainset.

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Opinions featured in Bicycle Chainsets & Bottom Brackets

Shimano Tiagra FC4700 cranks 170 mm 50/34 10V
Good quality
Good bottom bracket for this money
Antonios, the 25 February 2020
Shimano Tiagra ITA RS500 Bottom Bracket Cups
Good quality
Good quality fits perfect
Antonios, the 25 February 2020
SR Suntour XCE T-312 175mm 48/38/28 Chainset Black
Great quality
Great quality at a fantastic price.
Daniel, the 13 September 2019
Shimano Tiagra RS500 bottom bracket cups by pressure C: 86.5
perfect piece
it's met my requestes
stefano, the 5 September 2019
FSA MEGA-EXO BB-8681 Di2 Bottom Bracket Cups
Solid product
Good value for money
Jens, the 22 May 2019
Shimano Altus 8-Speed 42/32/22 175mm Square Chainset Black
excellent service
great communication
Mohammed, the 19 December 2018
Shimano Altus 8-Speed 42/32/22 175mm Square Chainset Black
Very good price and excellent costumer services
Fantastic service Deporvillag is my first choice now after a great experience
Mohammed, the 13 December 2018
FSA MEGA-EXO BB-8681 Di2 Bottom Bracket Cups
What I needed
Perfect replacement
Patrick, the 12 December 2018
Shimano SLX M7000 Single 11-Speed 175 mm BOOST Crankset
Good quality
It has meet my quality
Kenneth , the 11 December 2018
Shimano SLX M7000 Single 11-Speed 175 mm Crankset
Superb value!
I have been using these cranks for a while and can’t fault the quality,price or durability. Would definitely recommend and buy again.
Sean, the 6 December 2018

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