Internal bottom bracket

To be positioned neatly inside frame tubing when connected.Junction is required for connection of rear mech, front mech, battery, and cable to battery indicator junction box.Shimano SM-JC41 E-tube cable junction for internal wire routing.

The Park Tool BBT-90.3 is a specialized, high-quality tool designed to remove and install bearings in press fit bottom brackets on bicycles. It ensures precise alignment during the process for optimal performance and longevity.

Praxis T47 integrated bottom bracket for Shimano with 24mm spindle and 85.5mm shell width in black color.

Praxis M30 BSA Bottom Bracket - Black, 68mm/73mm threaded, with internal sleeve for added durability.

Hope Press Fit 46 Bottom Bracket, Black, PF46, Steel Bearings, 68/73mm Axle, Internal Bearing. One size - male. Durable and reliable solution for efficient power transfer in bicycles.

A lightweight, high‑performance bottom bracket featuring CeramicSpeed’s patented ceramic bearings and a durable black coating for corrosion resistance. Designed for 24 mm spindle bikes, it delivers low friction, smooth pedaling, and long life in demanding riding conditions.