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For specific use with BB86 which is mostly GIANT and some TREK BB'S. Outer BB shell diameter is 41mm and with this you can use 30mm Axle systems. Ideal for ROTOR 3D+ cranks.

This BB can be used with ROTOR 3D30, 3D+ and ROTOR POWER CRANKS
CONVERT FROM 24MM TO 30MM AXLE DIAMETER.

Delivery Information

Hargroves Cycles offer Free Delivery for all orders over £9 with in Mainland UK (orders below £9 will be charged £1.99)

Bikes and Bulky items are sent via TNT Courier and smaller items are sent via Royal Mail 2nd Class Post.

Items over £50 are sent with Royal Mail 1st Class track able service which is emailed to the customer on the day of dispatch.
For full delivery details please see our Delivery Page

International Delivery

Hargroves Cycles delivery all across Europe. Goods are shipped from the UK and are subject to import duties where applicable

For further delivery, pricing and restriction information please view our International Shipping Page

Returns Information

We will happily exchange or refund any item purchased at Hargroves Cycles within 365 days, except gift vouchers and personalized products, except where faulty.

Returned goods must be unused and supplied with their original packaging, unless faulty.

For full details on our Returns procedure please visit out Returns Section.

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You're reviewing: Rotor PF41 Steel Bottom Bracket

ROTOR Bike Components comes from one of the nerve centers of technological development in Spain, the Aeronautical Engineering School of Madrid.

The basic idea of the ROTOR System comes from this school where some students developed the initial prototype in 1995. After the Head of the school approved the project, the University's Manufacturing Department helped with the creation of the prototypes.

The designers decided to stablish a company to complete this product development and start a business venture.

After the first working ROTOR bycicle wass introduced internationally, Dr. Conconi showed a huge interest in the idea and asked for a bicycle to carry out a study on the performance of the system, concluding that the system provided advantages more than evident compared to traditional crank systems. Dr. Alfredo Cordova, from Valladolid University also found that later versions of ROTOR System provided biomechanical obvious advantages.

  • Rotor PF41 Steel Bottom Bracket