Motors, gearing and speed controls explained from the bench up. Keep the battery, gearing and temperature in the same conversation.
How brushed and brushless RC motors work, how they differ in efficiency, maintenance and cost, and which one fits bashing, crawling or racing.
Read the field notePinion, spur and final drive ratio, without the guesswork.
Read the field noteThe exact motor and ESC temperature limits from Castle, Tekin, Traxxas, Hobbywing and Spektrum, why they differ, and how to check and fix heat.
Read the field noteWhat ESC amp ratings, BEC output and low-voltage cutoff mean, the LVC defaults manufacturers publish, why ESCs fail, and current ESCs with list prices.
Read the field noteWhat FOC means for RC crawlers, and how Hobbywing's Fusion SE, Fusion Pro, Fusion Pro Elite and XeRun AXE R2 compare on power, BEC, voltage and price.
Read the field noteWhat RC speed claims really promise, what independent GPS tests found, and how to calculate theoretical top speed from Kv, voltage, gearing and tires.
Read the field noteA careful mesh check that begins with the correct gear and ends with a temperature-aware run.
Open the guide ↗A symptom-led check that avoids turning one no-drive problem into two.
Open the guide ↗A faster lap is a clue, not a verdict. Compare repeatable runs, record mistakes and return to the baseline before drawing a conclusion.
Open the guide ↗
