Associated B7 vs XRAY Xb2c 2024
 

Hi all,
Any advices about b7 or xb2 2024 ? What do you advices on it please ?
thanks

I've had both.

The XRAY is essentially a B6.4 with expensive spare parts.

The B7 is a new design philosophy unlike any other car on the market. It's been successful so far.

I don't think either is "slower" or "faster". They drive differently, the B7 is a little smoother by nature. The B7 is easier to run (for me) because there is a much wider selection of option parts and spares availability is better.

Knowing the way that XRAY operate I would expect the XB2'25 to be a B7 copy.

thanks a lot

We have both at our track, with the big three probably being AE, Yokomo, and Xray in that order.

The B7 looks like AE's take on what the willspeed conversions were doing.

I'd say regardless of the platform, I'd say first identify the things that matter to you. For example:

- Having local support of fellow racers
- Parts fitment and general quality
- Price of parts
- Newness of kit versus design (design if really new can have issues that need to be worked out, so watch for that)

All vehicles will have some issues and some pluses. Big thing is finding what works for you overall to deal with.

How does the extra friction, from the gears on the B7, effect its top speed?

Having owned and raced both, I would say the answer more lies in the surface that you are racing on. If you are are on high grip or turf/carpet the Xray is by far better. Honestly, it is not even close. On lower grip dirt the B7 will be better due to the nature of the design. But having said that, you can be successful with both. Personally the quality of the Xray is by far the best on the market, once again not even close in this regard, but it does have a higher cost. Expect a new Xray this fall (I would guess) but I don't think it will look anything like the B7. I suspect there will be a few tweaks to a very successful platform. The geometry does look closes to the B6.3 but it is still different in many ways. Also, I don't think this is a bad thing as the AE 6.3 was a very good car. Actually, it was a lot better than the 6.4 in many ways. Either way you cannot go wrong, but I do think the surface you race on most might sway you in one direction or another. Good luck!

Looking at early posts on the B7 group, the extra friction based on the kit gears it seemed like there were reports at the time of heat issues. I dont know if this is still the case, but I do see a variety of aftermarket stuff getting made relative to lower friction gears. In real-world from what I can see at our turf track they seem to have similar top end like everyone else. I don't see anything odd, so maybe its more so what heat they see if I was going to confirm anything relative to that.

In general me personally I went with Yokomo years ago after people recommended the turf springs at the time for carpet. I figured if the springs were good, maybe try the car. I have been running those ever since which is funny now we go with other brand springs lol . I like the combination of what i feel is quality of parts relative to price and performance. The one Xray I had here for sure was top notch in parts quality, but at points I would cringe when I would here it hit something knowing the cost of that 1 a-arm in the pack, packaged beautifully for sure, but just wow on the price lol.

Main thing though for sure, gotta find what works for you. Big thing to me, if it keeps you in RC, then its the right car for you!

The B7 has two extra gears and four extra bearings. Stock motors will run slightly hotter if you run the same gear ratio. You need to reduce timing a little and adjust your gearing down for stock motors to reduce the heat. I keep my stock motors at 155deg or less at a 5min run and they last a long time.

The B7 is just so smooth to drive. Its a fantastic leap forward for a 2w. I've been running AE for a while, and I was going to try something else like a Schumacher 2w but after it was announced I had to get one. Its an excelent buggy. I did end up with a Schumacher L1R 4w so I do appreciate different stuff. I also mainly run mod, and theres no downsides to a B7 in mod.

to me the xb2 drives more like a b6.2, but I agree this isn’t a bad things, the car is easy to tune on high grip dirt and carpet, the parts though more expensive last 3 times as long as anything AE or TLR could ever come up with. With the US team getting bigger by the day, setups and support isn’t an issue anymore. Parts are up on amain or rcamerica for all 24 models. I’d rather spend a few more bucks on parts that will last way longer then on a car that claps out after 2 races.

This is why we changed from schumacher. The Xb2 has been very durable, and a great car.

Xray company tested new XB2, the upcoming model


https://www.facebook.com/share/p/MjY...ibextid=xfxF2i

Yes, Xray releases stuff EVERY year, and EVERY part on them is new and revolutionary. Even if last years model had some of the same parts. The screws are award winning too!

Tested the 5 gear on carpet 17.5 super high grip and it didn’t destroy its self like another companies diff I can mention. Made the car change directions much more smoothly and was brilliant in the infield if the track. Best part was I didn’t change a thing on my setup from the 3 gear. Just graphite greased the gears, put it in and off I went. Just for safety sake I did turn down the pinch on my esc a tad, but the car was so much faster on the infield sections I lost zero time. In face I was .5 tenths faster and my consistency jumped from 94.5 to 97.6 due to the smoother transitions I was able to make with the car made with the experimental gearbox. Motors temps went from 125 to 130 so temps were not an issue. Noticed no appreciable change in speed. Transmission is smoother than the AE 5 gear.

durabiiity is one of Xrays biggest pluses. Sure spares cost more, but since you’re not changing plastics after 3 race days, the cost in the long run is lower.

Yea but it’s over twice as expensive to have an Xray car as it is any other brand.