Bottom bracket cleaning guide

The bottom bracket is the part of the frame located directly between the left and right cranks.  The bottom bracket shell (the inside of the bottom bracket) houses a spindle which acts as a mount for each crank arm. The spindle allows the cranks to rotate smoothly when pedaled.  The bottom bracket shell and spindle can be cleaned if instructed to do so by Product Support.

This article shows a Camel e-bike, but the steps will be the same for most models.  

Follow the steps below to clean the bottom bracket shell and spindle on your bike.

  Tools Needed:

An 8 mm Allen wrench

A crank puller for standard square taper cranks

Clean paper towels or shop towels

A bottom bracket removal tool for Shimano/ISIS Drive splined 20 tooth cups, such as BBT-22 Park Tool

An adjustable wrench or socket wrench that fits the bottom bracket removal tool and has a long handle

A quick-evaporating solvent such as denatured alcohol

Degreaser

Bicycle grease

A torque wrench with an 8 mm Allen bit

Nitrile gloves (optional)

A bike stand or friend to hold the bike if needed

1) Remove the Cranks

 Get the bike ready for maintenance. Turn off the bike, unlock and remove the battery, and press and hold MODE (or the power button) to discharge remaining power.

2) Remove the Bottom Bracket Spindle

3) Reinstall the Bottom Bracket Spindle

4) Reinstall the Cranks