Hobbywing XeRun 21.5T G5 Motor (Torque) - Due 10 August 2026

HW30401767

Compared to the XeRun V10 G4R, the G5 delivers a 3.9% increase in maximum output power and over 4% improvement in heavy-load efficiency — gains that translate directly into faster lap times and longer consistent runs.

• Higher efficiency reduces overall operating temperatures, but the G5 also introduces two dedicated cooling innovations to keep your motor performing at its best lap after lap.
• A redesigned end bell exposes more of the winding directly to airflow, dramatically improving passive heat dissipation without any additional components.
• Hobbywing's integrated rotor cooling design actively moves heat away from the core where it matters most. Patent protected — an industry-first innovation exclusive to the G5.
• A complete inside-and-out redesign sheds 13 grams versus the previous generation, reducing unsprung and rotating mass for sharper handling response.
• The G5's internal mass distribution has been deliberately shifted towards the vehicle's centreline, improving balance and predictability through high-speed corners.
• A proprietary special coating applied to the rotor surface provides dual benefits: corrosion protection for durability in all conditions, and improved magnetic performance enabling higher load capability and greater power output.
• A new fine-tune angle adjustment in the timing assembly allows racers to dial in sensor position for smoother, more efficient power delivery. Timing tolerance validated by the HOBBYWING Tunalyzer.