For GLA and GLA-V2

Allows for a greater range of gear ratios

• 5000~5500KV  try ~6.5 gear ratio, recommended power for racers at small/medium tracks
• 7000~7500KV  try ~7.5 gear ratio, for expert racers at large tracks
• 9000~9500KV  try ~8.5 gear ratio, when you just want the fastest car... :-)