Rotor T4730 Asymmetric Steel Bottom Bracket
233555

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Rotor T4730 Asymmetric Steel Bottom Bracket
233555

£52.49
Save up to £24.67 with Cycle2work
  • CNC machined from 7075 aluminium
  • Easy installation and maintenance
  • Excellent resistance to fatigue

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Rotor T4730 Asymmetric Steel Bottom Bracket
Rotor T4730 Asymmetric Steel Bottom Bracket
£52.49

Rotor T4730 Asymmetric Steel Bottom Bracket

  • Material: 7075 Aluminium 100% CNC-machined  
  • Compatible Crankset Brand: ROTOR
  • Material Bearing: Steel
  • Axle diameter compatible: 30mm
  • Shell Width: 77.5mm, 79mm
  • Frame Type: T47A
  • Discipline: Road, Triathlon, Gravel, Cyclocross, MTB
  • Colour: Black

Rotor Steel bottom bracket with appealing looks and ease of use. The Rotor T4730 Asymmetric BB is incredibly light and will match up with all high end cranks with looks and performance.

The Rotor T47A bottom bracket is CNC machined from 7000 series aluminium for a precise fit and perfect engagement with the threaded BB shell. The 7075 alloy provides a strong, solid platform which is extremely resistant to fatigue, the CNC machining ensures accurate bearing alignment, prolonging the life span of the bearings and reducing friction for smooth pedalling.

The T4730 Asymmetric bottom bracket is compatible with T47A frames that have a shell width between 77.5mm and 79mm - T47A is also known as BBright T47. Specifically designed for Cervelo, Factor and Felt bikes that use the T47A bottom bracket standard. If you have a frame with a T47A shell and a crankset with a 30mm spindle, this is the bottom bracket you will need. Suitable for chainsets with a 30mm spindle diameter including all Rotor 3D & REX 30mm, Kapic, Kapic Carbon, Aldhu 30, Vegast 30, INpower, 2INpower. 

The T47 bottom bracket standard was born in 2015, introduced as a solution to solve many of the problems associated with press fit systems. T47 is a development of the BSA threaded system, it's essentially a larger version designed to improve compatibility with the different crankset options available in the market. T47 shares the same thread design as BSA, with the right (driveside cup) using a left-hand thread and the left (non-driveside cup) using a regular right-hand thread. T47 cups are larger in size, the cup’s threading diameter is 47mm with a pitch 1mm pitch. 

The Rotor T47 bottom bracket has a 12 notch tool fitting and can be installed with the Rotor UBB+ BSA30 Bottom Bracket Tool (Halfords article: 278979).