JMP Chrome Fork Tube/Stanchion. JMP fork tubes are high quality replacements for the original equipment on your bike. Made from high quality raw material. Special chrome coating with low breakaway torque. Manufactured on the most modern CNC machines in Central Europe. 41 x 1.0 mm. JM Products is one of the leading suppliers of high-quality private labels in the car, motorcycle and workshop industries. Based in Hamburg, Germany, they have been supplying the motorcycle aftermarket for decades. JMP (or JM Proline) is the tool division of JM Products. Their focus is on high quality workshop tools for the automotive repair sector. Whether you required torque wrenches, ratchet boxes or high-quality specialised tools for cars or two-wheelers, JM Proline will have you covered.