dex210 motor config
 

So have the team tried the 'extra' configs?

MM3 very high traction
RM4 very low traction

(See http://www.team-durango.com/race-car.../#motor-config)

I can't get my simple head around what happens under acceleration, and in the air etc?

think im going with mid-motor 4 gear

any one that has built there kit how long does it take would you think to change from 3 to 4 gear and rear and mid motor.

I was thinking the same thing!

I don't recon it would take that long to swap it all round, the layshaft is good as you can bolt it on either side but the gb will still need to be split even if you are using the same amount of gears as the bearing will need swapping round that the layshaft runs thro. I think the thing that will take the time will be the wiring to the motor , unless you can leave them long somehow so you can do all configs without altering them

When I had the X-6 3 gear version the 4 gear gearbox just made it so much better every where so I think that will be the same for the DEX210 mid configuration. Not sure about 4 gear rear though but suppose that could overcome the extreme high traction tracks to make it a little easier.