CeramicSpeed BSA Bottom Bracket (Black) (73mm) (30mm Spindle) (Coated Ceramic Bearings) (MTB)

CeramicSpeed BSA Bottom Bracket (Black) (73mm) (30mm Spindle)
Back Order Now
You may back order this item and it will ship when it arrives.
FREE Shipping Eligible! Learn More
Price: $479.00

Please Log in to receive a notification when this item arrives in stock.

Save In List
This item earns up to 479 VIP Reward Points Learn More

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.


  • Grade 3 Silicon Nitride balls
  • Coated races increase bearing service life by increasing hardness of race and reducing corrosion
  • Reinforced polyamide cage and non-contact seals
  • Hand built in Denmark
  • CeramicSpeed products with coated bearings include a 6-year warranty 

Frame Interface: BSA/English Threaded
Spindle Interface: 30mm Spindle
Bottom Bracket Shell ID: 1.37
Shell Width: 73mm
Bearings: Ceramic
Color: Black
Weight: 81g

This product was added to our catalog on August 3, 2022