Available models

MCL System

Remote control

The Magnetic Control Locking (MCL) System is a mechanical locking system that is located inside the Jewel. It is designed exclusively for Jewel and has the unusual feature of an externally controllable magnetic locking system. This allows you to activate and deactivate the locking from outside the tubes, therefore eliminating the need for holes (which would weaken the walls of the tube) and allowing the cable to be located in the main tube of the Jewel.

The Jewel always comes with a remote control to be controlled from the handlebar, never from the seat post. Because with advanced riding taking your hands of the handlebar can mean eating dirt. For your safety Blacx doesn’t fabricate seat posts without remote control. Since the position of the controls on the handlebar is very personal, the Jewel control is designed to be used both for left and right handed riders. It takes up very little space so you can position it between grips, break levers and shifters, wherever is comfortable for you.

Height Control

The height of the Jewel is defined according to the different types of terrain, slopes or irregularities that nature presents us with. Our experience has shown us that too many intermediate positions or positions that are not well defined make it difficult for the rider to know with certainty what position the seat is in. Determined positions stand for easy learning (which will happen subconsciously) and allows the rider to quickly feel confident in using/choosing these positions while riding.