Hambini Racing BSA Bottom Bracket 30mm Long Axle

(6 customer reviews)

£291.00 Ex. VAT

This bottom bracket is designed to interface a 30mm Long Axle (90.5mm DBCA) with a bike frame that uses a BSA Bottom Bracket

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SKU: BSA-30mm Category:


  • BSA 68mm Threaded (1.37 x 24TPI), Often referred to as English, BSC or ISO threading.
  • Drive side has a Left Handed Thread, Non Drive Side has a Right Handed Thread
  • 30mm Long Axle (90.5mm+ DBCA) compatible
  • The drive and non drive sides are aligned via an internal male/female sleeve
  • Top of the range 6806¬† SKF/NTN/FAG/NSK bearings fitted as standard
  • Non contacting Seals
  • It is extremely important that any frame this BB is fitted to has a flat face (0.02mm) that is perpendicular to the threads. Diameter of 52mm
  • Tightening Torque of 8Nm (BSA Bottom brackets will self tighten)
  • Fitting instructions are here,
  • The fitting tool to install this is available here¬†

This bottom bracket features the largest bearings of any commercially available unit for 30mm axles. They are standard 6806 bearings which have a load rating that is significantly higher than the 4030 bearings used by other manufacturers.

The 24mm variant of this bottom bracket was featured in this video. The unit featured in the video was silver, the production unit is black.

Installation and service video is shown below

Additional information

Crankset Type



6 reviews for Hambini Racing BSA Bottom Bracket 30mm Long Axle

  1. Racer 500

    Swapped a c bear out for one of these. No contest, the 5 year old is definitely the king.

  2. Conor

    Very solid

  3. Daniel Dragic

    Smooth like butter!

  4. Carlos P.

  5. Derek Brown

    Solid construction and excellent quality bearings

  6. Adrian Lee

    Looks like a nice piece of engineering but Ive not yet installed it in a bike as the frame is still being built for me.

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Q & A

Will this BB work with Hope RX cranks? Thanks Haz asked on March 4, 2023

It will providing the Hope Cranks have a DBCA of 90.5mm or above

admin answered on March 4, 2023 store manager
(0) (0)
Which BSA BB should I select, 30 or 24 to pair with a Rotor crankset (not yet purchased and both available) to fit into an Enigma Evade? Nat Winsor asked on August 18, 2022

If you have the choice, the 24mm Rotor crankset with the Hambini to Shimano BSA BB is superior.

admin answered on August 19, 2022 store manager
(0) (0)
What Cannondale spindle length (full length end to end) will I need with this BB in order to run my Cannondale Spidering crankset with it? Met asked on August 13, 2022

90.5mm DBCA

admin answered on August 17, 2022 store manager
(0) (0)
What crankset would you recommend with this? Looking to pair this with a Sensah Empire 11 speed kevin asked on February 28, 2022

Quite a number of people use a ROTOR type. Seems to work well.

admin answered on February 28, 2022 store manager
(0) (0)
Will you be making a BSA 73mm version? Tom asked on February 7, 2022

Yes, it's in the pipeline.

admin answered on February 7, 2022 store manager
(3) (0)

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