Planetary gears on a Lego Technic turntable puts the torque at the end of the drive train. This reduces friction on the entire drive. Mounting to your frame from the turntable puts the wheel near its original placement. After the gear down the torque is distributed through 2 axles that don't twist increasing the strength more than 4x to the highest torque part of the gear train. No more twisted axles.<br />...<br /><a href="https://www.youtube.com/watch?v=rZutzoUWaDQ" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=rZutzoUWaDQ</a>