Cool mod. Seems to grip well.
I actually also have modded my LEGO Dirt Crusher as well. But I haven't shared my creation with the world yet.
I have replaced all the electronics except the motors with hobby grade electronics. This includes replacing the old steering electronics with a 1/10 scale servo.
That was the most difficult part, since there is no obvious way to link the servo to the steering mechanism.
The speed control and radio were easy and just fit where the old electronics resided.
The motor was just a question of stripping the cable, revealing a + and - wire to connect to the speed control.
And there you have it, a dirt crusher with 2.4 GHz radio with 200m+ range and 2S-3S LiPo support.
Of course, the next step is brushless motors, but I will leave that to someone even more crazy than me :))
