Sorry forgot about this option but it's the only way to get one. You can't "order" one as of yet.

i did my t4 that way arms tower chassis t plate

Actually, I've already added 49 grams of weight back there(I'd read about other doing it a wee or two ago), & have been working on shock mounting angle(& shock damping) & roll center adjustments, as well as playing with the length of the rear camber link(& it definitely IS helping, but I just feel like I need a bit more), so it would seem that toe angle is about the one thing I haven't tried....

The funny thing is that after adding weight rear toe is one of the first things many guys look at.

I picked up the "B4.1 Rear Ballast Weight" (pn: 7488) but it doesn't say anywhere on the package nor the bar exactly how much weight it is. Does anyone know? Cavalieri's setup calls for 1/2oz in that position (under the rear shock mount) so I'm hoping that's how much the ballast weight weighs.

If any of the AE guys are reading this, you might want to pass it on to whoever does your packaging that they might want to add a detail like this. It's not even mentioned in the little folded-up instruction manual that comes with the part.

Thanks!

17 gramms.

correct and 1/2 oz. is 14 grams

Great. Thanks guys!

Your welcome.

Do you guys feel the 4.1 plastic is stronger then the old?

Because the way i broke my chassis i think the old wouldn't have broken from a hit like that.

I think I mentioned this before, but the .1 chassis are weaker. I went through 3 B4.1 chassis in a month. It took a buddy of mine a matter of weeks to break his. All of them broke in the same spot, just behind the front kick-up. I went a year with the old chassis without breaking.

I talked to AE about this and they said that this is common and that their engineers are aware of it.

The only thing I noticed that you have to do to the old chassis, is take a file to the sides of the front kick-up so that the front arms move freely.

i think the X in the front makes it flex less and break easier.

been running my b4.1 for 2months and haven't broken anything. Also i have to much grip in rear with 3* or rear toe.

I've heard rumor that there are small air bubbles in the molds and if enough of them are concentracted in the weakest spot it can cause a chasis to break.

For those who have broken chasis, did you notice any?

Can't tell if it has air bubbles.

might break it somewhere else to see.

Hey guys, looking for ideas for gearing in my new FTB4.1 and FTT4.1
I am running a Tekin RS w/ boost and a 17.5, 5000mah battery
I was thinking of starting at 26/75, is this a good starting point?