This invention relates to a tool for insertion into an aperture on a chainring of an electric bicycle, the tool comprising a body which is shaped to abut a pedal arm of the electric bicycle and a head which is shaped to be received by the aperture. This invention also relates to a chainring for an electric bicycle comprising an aperture which is shaped to receive a complementarily shaped tool. In addition, this invention relates to a kit comprising the chainring and the tool, as well as to a method of cleaning and/or lubricating a drivetrain of an electric bicycle using the tool and the chainring.