If the manufacturer specifies GL5 for a manual box containing only straight cut and helical cut gears and on top of that an OCI of 12 months, does that say anything negative about the design of the box. Would GL5 be less than optimum for the ball bearing races.
If you are wondering what it is then it's a BMW motorcycle gearbox, very much car like being in line with an engine speed clutch but no synchros,
If you are wondering what it is then it's a BMW motorcycle gearbox, very much car like being in line with an engine speed clutch but no synchros,