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Overview

BSA comes from Birmingham Small Arms, aka English threading. English threading on mountain bikes means a 73mm wide, 34mm inside diameter shell with reverse threading on the drive side. It's the most common threaded standard employed today. This kit allows you to fit 30mm thru-axle cranks, like those from Rotor or RaceFace, to fit in the tight space of this 30mm spindle.

CeramicSpeed Coated Bearings are hand built with unique CeramicSpeed Ceramic Balls installed on coated, hardened-steel races for longer life and less bearing drag compared to standard bearings.

In The Box

  • 2 threaded cups with bearings installed
  • 2 1mm spacers
  • 2 0.5mm spacers
  • Spacer tube
  • 2 dust covers
  • O-ring
  • Long Life Grease
  • Sticker sheet

Installation

Installation of BSA30 MTB

If you don't have any experience installing bottom brackets and bearings, we recommend that you have your local bike shop fit your new bearings.



Installation of 30mm crank on CeramicSpeed Bottom Brackets


Maintenance

We recommend that you follow our instructions on how to maintain your CeramicSpeed Bottom Brackets to achieve the lowest friction and the best longevity.

106074

CeramicSpeed BSA30 MTB Bottom Bracket

Available from stock in 3-5 days unless specified below.

Most non-stock products take approx 2-3 weeks from time of order to shipping.

Please contact us for any CeramicSpeed products you don't see listed on our site.

Overview

BSA comes from Birmingham Small Arms, aka English threading. English threading on mountain bikes means a 73mm wide, 34mm inside diameter shell with reverse threading on the drive side. It's the most common threaded standard employed today. This kit allows you to fit 30mm thru-axle cranks, like those from Rotor or RaceFace, to fit in the tight space of this 30mm spindle.

CeramicSpeed Coated Bearings are hand built with unique CeramicSpeed Ceramic Balls installed on coated, hardened-steel races for longer life and less bearing drag compared to standard bearings.

In The Box

  • 2 threaded cups with bearings installed
  • 2 1mm spacers
  • 2 0.5mm spacers
  • Spacer tube
  • 2 dust covers
  • O-ring
  • Long Life Grease
  • Sticker sheet

Installation

Installation of BSA30 MTB

If you don't have any experience installing bottom brackets and bearings, we recommend that you have your local bike shop fit your new bearings.



Installation of 30mm crank on CeramicSpeed Bottom Brackets


Maintenance

We recommend that you follow our instructions on how to maintain your CeramicSpeed Bottom Brackets to achieve the lowest friction and the best longevity.

  • AVT.Bike is an authorized CeramicSpeed dealer. We carry stock of the most common CeramicSpeed bottom brackets and pulley wheels in Black.
  • Most CeramicSpeed products are also available in Red, plus a coated version. Please contact us for availability and ordering of these products.
  • The coated version contains a metallic layer, which is 75% harder than the hardened steel races. The coating is applied in a very thin and even layer of 3 microns (0,003 mm) on the entire surface of the bearing race. Both the inside and the outside are treated to achieve optimal results.
  • If you have any technical questions at all on CeramicSpeed products please contact us and we'll be pleased to help you out!
  • All CeramicSpeed products are responsibly manufactured in Denmark.

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In Stock & Ready To Ship In 3-5 Days