Always check your bike’s manual
Each bike is slightly different, so it’s always good to check your manual. Most two strokes these days are using lightweight gear oil; anything thicker tends to hamper the function of the clutch. Four strokes tend to use a multipurpose oil which is used for both the gearbox and engine, so this is even more essential to keep up, as the mechanical life of your bike is banking on you keeping up with your motocross maintenance!I see a lot of people suggesting to change the gear oil every 2-5 rides, which actually means anything, after all, some of us are doing 3 hour endurance events, while others are doing 10 minute motocross races!
