The differences between an EC and a DE for that year bike are...
The EC comes set up for street legal use in europe and has the following differences from a DE...
1. DOT and ISDE legal knobbies - Michelin Enduro Comp III tires.
2. Full wiring loom including horn, high/low beam switch, turn signal wiring, etc.
3. There is a small subframe/fender support that bolts onto the rear of the subframe to support the rear fender extension/taillight.
4. A rear fender extension/taillight/license plate holder.
5. Comes equipped with a kokusan 2k-3 ignition rated at 110 watts.
Relative to the EC model - the DE has...
1. Michelin non-DOT legal S12 tires front and rear.
2. an abbreviated wiring loom (no turn signal wiring, no horn, no hi/lo beam switch, etc). They were coming with a headlight - but has a single wire that is typically tied to the low beam.
3. The DE model doesn't have the rear fender support (an extension to the subframe to support the weight of the taillight, etc.)
4. The DE model doesn't have the rear fender extension that incorporates a tail/brake light and mounts for turn signals.
5. The DE models comes equipped with a lighter kokusan 2k-2 ignition that is rated at 40 watts.
In terms of how the two motors will run side by side - the DE will have more accelleration with less flywheel effect - but you can bolt flywheel weights onto the DE to dial in the "grunt" you want. Three different weights of flywheel are available. You can look in the tech articles section of the gasgas riders club for an analysis of the moments of inertia of each option. If you get an EC - it is pretty heavy and no flywheel is needed.
So, I think to answer your question - the DE is a good choice for you, it is a few pounds lighter than an EC for purely off road use - but, have the dealer install a flywheel weight for you if you ride in tighter terrain or "slop".
jeff
webmaster
GasGas Riders Club
www.gasgasrider.org