Hello, Could anyone please tell me the weight of this kit?

I am very impressed with most of the chassis. Dagu has done a nice job. The aluminum is nicely punched and folded. There are abundant slots and holes for mounting just about anything. I was surprised and impressed with the bearings that the wheels run in. They make a big difference in how smoothly everything goes together. Assembly is mostly easy and straightforward. Tread quality is good. Everything seems like it would stand up really well to falls, even from 4' high workbenches.

I just have a few gripes: No mounting holes in a pattern for Arduino? I can mount 42 servo motors, but no controller? C'mon! No mounting holes for the included battery pack? This is inexcusable! The bent up prongs in the chassis interior make it really hard to fit the pack next to the motors even if you drill new holes to mount it. Getting the wheels mounted on the output shaft was a trick. I had to stack the included washers and use screws to pull the wheel onto the shaft. Trimming a little of the plastic where the motor output shaft enters helped. Lack of power is disheartening. I'm going to look into higher power motors, but these stall trying to drive over a pencil. I don't know what trickery was involved with the stair climbing in the Product Video. Has paint that chips, anodizing would be nice.

Ok guys I'm going to cry, the battery pack is mounted in the bolt slots that slide diagonally. Also, you can mount the "red board" (highly recommended) with two bolts on it, we used this kit in robotics camp two days ago. And they uped the motor speed via programmer. The red board is basically arduino uno, it still uses that programming language of arduino, please say if this was helpful.

I love this chassis. It's an awesome mix of quality and price. The motors are much quieter than the other toy chassis I bought years ago.

The one problem I had was mounting the wheels on the motors. The fit was soooo tight (yes, I lubed it as instructed) that I think I ended up bending the shaft the wheels are mounted on. As a result, my robot has a bit of a hitch in his giddyup.. They were such a pain to put them on I don't know if I'll be able to ever get them off to replace them without destroying the whole thing.

Other than that it's a good kit for the money.

I'm a little disappointed with this kit. It looks so good, but its looks are deceiving. As others said, its not perfect. My biggest problem is just the lack of power. Using a motor shield and the same battery pack I use with the Tamiya tank kit this stalls out with the slightest obstacle and just doesn't move very quickly.

This chassis is really good. I'm using it with the serial controlled motor driver and it works great. Also, I have no idea how this managed to stall driving over a pencil. Mine seems very powerful running at 9 volts.

when is going to be really available? i've been waiting for more than a month..

I am completely new to Arduino. I want to use this for an r/c project. Can someone direct me to a tutorial for using this with an r/c radio system?

Would someone check this math?: Motor Speed = 65rpm No Load. So lets estimate 60rpm with some light load. Wheel diameter = 52mm. Lets say 54 with the tread added. (so radius = 27mm)

So using the formula for tangential velocity given the period (1s), and radius, I find the speed of the chassis would be about 0.170m/s or 0.380mi/h.

Will the the Motor Driver 1A Dual TB6612FNG work for this platform?

Is there documentation or example code on how to control this with a Raspberry Pi (preferably) or Arduino?

In the documents section you provide a datasheet for the RS030 encoder. There is no mention of them being included in the kit nor do they appear to be available from Sparkfun. Are they included?