Finally I can speak about this :-)
There are a lot of small detail changes that have gone into the 22 2.0 It's easy, at first glance, to miss them but they all add up in different ways to making the 2.0 easier to drive and easier to push with.
First up, the most obvious is perhaps the inclusion of several hop up items as standard (threaded hinge pins, alloy front bulkhead, alloy washers etc). The shocks now feature 2 hole 1.6mm machined pistons as standard along with machined shock spacers and X-ring seals and all hinge pins and shock shafts now have that uber sexy dark TiCN coating that the 8ight 3.0 series also has.
The Steering Rack has been tweaked to enable the Ackermann angle to be changed (the inner ball stud is now horizontal and can be shimmed forward / backward) and mid motor owners can now choose to retain their batteries with a new hinge plate that can double up as a Rx or ESC plate.
One of my personal favourites (thanks Frank) is the inclusion of a small retaining screw that now holds the forward rear wishbone pivot block and anti squat shim in place so you can remove the mid car gearbox without the rear suspension falling apart.
The new 6.5inch rear wing is made from ultra thick lexan and there have been subtle revisions to the 22 bodyshape to accommodate the revised battery mounting system (rear motor users can now use a battery brace and thumbscrews as opposed to velcro). Interestingly, there is also mention of a new Cab Forward bodyshell on the options list and my understanding is that the US team have some pre-production versions of these to run at this weekend's US ROAR nationals.
The revised front geometry does indeed feature 5 degree caster blocks along with 4mm trailing axles but it must be noted that these are NEW items and the geometry is significantly different from the older original car.
We've tested this new front geometry for quite some time
and the difference is quite startling. Its best summed up as saying that it accommodates a more aggressive driving style and allows the driver to push harder without fear of the car snatching or hooking with the resultant loss of rear traction. This makes the car feel much easier to drive without making it numb or non-reactive. It also affects the way that the car loads up during the corner so again, you benefit from a more consistent feel through longer turns without robbing yourself of any initial sharpness or feel.
I could go on but I think the pictures probably speak more than I can. You can check out more details and look at the pictures
here.
Enjoy :-)