I would recommend going to the A hub especially if you race on a rough track. Check out the AVID A/C hub towers, best of both worlds and only about $12. They are designed to work with the AE aluminum hubs, the exotek utilize a vertical ball stud and will not work with any of the towers.

I was told that there are issues running the Viper speed controls with other brand motors (something about Viper using a diferent sensor technology) I have heard great things about running the Viper combos. Make sure you stick with a Viper motor

Never heard that before, I ran a VTX10 Black Edition with both a Reedy 13.5 and 17.5 and it performed great. Maybe some motors have issues and others dont??

I am good friends with the Viper USA team rep and he has said there are no issues running with other motors. In fact there are a lot of guys doing it with great success. You absolutely do not have to run Viper motors to get the speed control to work correctly.

Simply not true. I run D3.5 motors from EA and they work flawlessly.

The ONLY thing I can think of is that Viper has a temp cut off setting that you can use that monitors the temp of the motor internally, rather than externally. If you use anything other than Viper motors, you could see a variance in the temp reading. And that's not even a definite. Most of us don't use that cutoff anyway. We just use the temp cut off for the ESC itself.

Sorry for the noob question but what does the u-brace mod do and also does anybody have any pictures of the mod thanks

The ubrace mod is done in conjunction with the CHub. From my experience, it helps the car rotate is little better on a higher bite surfaces. I have found on low bite surfaces that it is pretty awful. Because the rear will slid a little and square up better, it adds a little more steering on the entry of the turn and when power is applied, it will square up nicely. Again, this is mainly for higher bite tracks. IMO if your running double Dee's you probably want the A hub. If your running a Bar code, beam or suburb type of tire, the C hub and ubrace mod might be for you. Like Matt said, the avid carbon upper is nice because it is an all in one A/C hub and is cheaper than the AE C Hub.

Oh ok gotcha I just here people talk about it didn't know what they were talking about but thanks for the info

Double Dees and Green V1 Barcodes are both good at my local track...

imo, that is weird. They are a completely different tire. But I am sure it is possible.

LOL yeah that's what I was thinking too. If you can run DD's and Barcodes on the same track, that means that track surface changes ALOT lol.

Ok I clarified with Viper directly. The issue is only with Speed Passion ESC and Viper motors. Below was their response.

"The only compatibility issue we have heard was Viper VST motor will not work properly with Speed Passion's new Reventon ESC. Speed Passion suggests customers to cut one of the sensor pin to bypass the temperature signal. You should be able to find that news in Speed Passion's web site.

yeah, I have seen that said on the SP thread.

Good information Wildcat. Any idea how many ballstud washers I would have to put under the inner link to make up the difference for running the aluminum u-brace? Just to get back to the stock height?

It is 2 washers to get back to the standard non sanded height, .060 is the measurement if you want an exact number.