Originally Posted by
SpidarX
I am in need of a new 17.5 motor for tc onroad. I see that there are different versions of the D4 (e.g., roar spec, maxilla, etc.). Which would be the best version to go with? I plan on putting it in an Xray t4 '15. It will be ran on a large outdoor asphalt track.
Thanks.
Roar spec means that its approved for ROAR sanctioned races.
Big Blue means that the stator is manufactured with thicker wire (lower resistance) and so will be more powerful. These motors aren't approved for ROAR racing.
Maxzilla means that it comes with a 12.5mm Turquoise rotor (High Torque Rotor). If it doesn't say maxzilla then it will just come with the regular rotor.
Generally for asphalt racing you want the Maxzilla version. As for big blue/roar spec, it depends on what rules your local club races with