IMO a Rebel 300 needs a tachometer. 1) You need to keep it above at least 3,500 rpm to help prevent lugging the engine – which reduces the life of the engine. I would keep it above 4,000 rpm or more carrying heavy loads or on hills. 2) Because the engine sounds so revved-up, I … Continue reading 300 – Does a Rebel 300 NEED a tach?