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BBB Cycling BottomThread BSA BBO-39 Bottom Bracket

BBB Cycling BottomThread BSA BBO-39 Bottom Bracket

Original price was: €49.00.Current price is: €45.00.

BBB BottomThread BSA BBO-39 Bottom Bracket are fully CNC machined external cups.

Category: Bottom Brackets

Overview

Key Features
- Universal BSA Compatibility: Designed for frames with BSA threading, which is 1.37″ x 24T. It fits both 68mm and 73mm wide bracket shells.
- 24mm Spindle Compatibility: Compatible with cranksets that use a 24mm spindle.
- High-Quality Bearings: Equipped with chrome steel 24377RS bearings for smooth rolling and durability.
- CNC Machined Cups: Features fully CNC machined external cups, made from 7075 T6 aluminum.
- Co-molded Bearing Shields: Includes co-molded bearing shields to protect the bearings from contamination and prolong their lifespan.
- Wave Washers: Comes with wave washers to ensure proper bearing preload and smooth operation.
Installation

To install the BBB Cycling BottomThread BSA BBO-39 bottom bracket, you will need a 16-notch 44mm OD cup tool (BTL-27L). Ensure the BSA threads in your frame are clean and greased before installation. The bottom bracket cups should be threaded in according to the indicated direction (usually marked on the cups).

Chrome steel 6805 bearings.
Co-molded bearing shields.
Wave washer spacers included.
BSA threading: 1.37” x 24T.
Fits 68/73 mm wide brackets.
Fits 24 mm spindle cranksets.
Cup tool: 16-notch 44mm OD (BTL-27L).