Radix CORALLY SYNCRO4

[Koma71]

 

[gouldy]

Here in the uk the spark rtr is only just over £420
Unless this is gonna be under £330 I can't see where it's value will fit in, if you got this, most people will be like.....hmm ill put a 6s esc in it, then your at the price of the spark
This has plastic towers, plastic shocks, 4s system, imo not a great motor, I'm not keen on my one in my sketer
Oh and a proper cheap ass looking controller

Spark £418

 

[razorrc]

I think it will be 399 euros, and presumably that coupon code will also apply, so about 370.

In the US I think it will be $350-370. That’s pretty competitive against something like the Typhon 3S or Kyosho Inferno NEO.

 

[gouldy]

£297 I've seen here in the uk
Id rather get the python for £310, yes I know its probably on its way out, but it will still be parts compatible with the radix and some others

 

[KnowAir]

Here in the uk the spark rtr is only just over £420
Unless this is gonna be under £330 I can't see where it's value will fit in, if you got this, most people will be like.....hmm ill put a 6s esc in it, then your at the price of the spark
This has plastic towers, plastic shocks, 4s system, imo not a great motor, I'm not keen on my one in my sketer
Oh and a proper cheap ass looking controller

Spark £418

View attachment 5726

I would expect the Syncros to be quite a bit lighter than the Sketer, so the 4s combo may be adequate for this buggy? As to Syncros vs Spark, that could be a tough one for some.. Though I have no use for 6s in a buggy myself, all it wants to do is go fast in a straight line which is hardly what I call fun. To each their own of course. To me, a 1/8 buggy should never need 6s to be fast or fun. They also make for a poor basher due to low ground clearance and narrow stance as well IMO.

 

[CCB-MN]

I would expect the Syncros to be quite a bit lighter than the Sketer, so the 4s combo may be adequate for this buggy? As to Syncros vs Spark, that could be a tough one for some.. Though I have no use for 6s in a buggy myself, all it wants to do is go fast in a straight line which is hardly what I call fun. To each their own of course. To me, a 1/8 buggy should never need 6s to be fast or fun. They also make for a poor basher due to low ground clearance and narrow stance as well IMO.

I like the fact that it’s a decent price for a 4S capable RTR. I assume that they want to rival Traxxas or Arrma due to the popularity of the Typhon series, some of the Traxxas offerings and other 3-4S rc’s but I think you’re getting more for your money with the TC cars at that price point. If it helps continue to drive more people into the hobby, then that’s great. I fear some people will try run it 6S and not like it, but that would be an unfair comparison. lol, If you want a 6S car, get a proper 6S car.

For me, I would save the $20 and get the Spark roller and just set it up myself, it seems a better option for my usage, but I can respect that for $330.00 at RCHE, that’s not bad for an RTR. After all, the Typhon 3S is currently $329.00 or a Bandit VXL 2wd or a 2S Rustler 4x4 for the same price.

 

[KnowAir]

I like the fact that it’s a decent price for a 4S capable RTR. I assume that they want to rival Traxxas or Arrma due to the popularity of the Typhon series, some of the Traxxas offerings and other 3-4S rc’s but I think you’re getting more for your money with the TC cars at that price point. If it helps continue to drive more people into the hobby, then that’s great. I fear some people will try run it 6S and not like it, but that would be an unfair comparison. lol, If you want a 6S car, get a proper 6S car.

For me, I would save the $20 and get the Spark roller and just set it up myself, it seems a better option for my usage, but I can respect that for $330.00 at RCHE, that’s not bad for an RTR. After all, the Typhon 3S is currently $329.00 or a Bandit VXL 2wd or a 2S Rustler 4x4 for the same price.

Don't forget, you can get a 3s capable Rustler 4x4 ultimate for a mere $550!?
But seriously, a Spark roller with a decent 4s system would probably be pretty capable.

 

[CCB-MN]

 

[morrjr71]

I understand the reviewer's issue with getting the wheels off: I have the same issue on my Asuga roller. I was going to remove the wheels to adjust the steering blocks, but the wheels wouldn't budge. I was able to get a 2.5mm hex wrench between the spokes of the wheels to adjust the steering blocks without removing the wheels. I'll wait to remove the wheels until I really need to do so.

 

[KnowAir]

I understand the reviewer's issue with getting the wheels off: I have the same issue on my Asuga roller. I was going to remove the wheels to adjust the steering blocks, but the wheels wouldn't budge. I was able to get a 2.5mm hex wrench between the spokes of the wheels to adjust the steering blocks without removing the wheels. I'll wait to remove the wheels until I really need to do so.

I've experienced this on my rc's too. I use a heat gun to get them off, then a half inch drill bit to ream the center holes out on 1/8 scale wheels with 12mm center holes. They go on and off nice and easy after that.

 

[morrjr71]

I've experienced this on my rc's too. I use a heat gun to get them off, then a half inch drill bit to ream the center holes out on 1/8 scale wheels with 12mm center holes. They go on and off nice and easy after that.

Thanks for the tip about the heat gun! I don't have one, but this might be a good excuse to get one. I have used a high-wattage hair dryer in the past to heat things up, but not for RC use.

 

[KnowAir]

Thanks for the tip about the heat gun! I don't have one, but this might be a good excuse to get one. I have used a high-wattage hair dryer in the past to heat things up, but not for RC use.

The hair dryer may be enough. I have a heat gun from Amazon that I "borrowed" from my wife. Have to be careful not to over do it with the heat, don't want to warp the wheel. But yeah, I've used it on several occasions for wheel removal and making my own skid plates and bumpers from Kydex plastic.
I have one like this, without the digital readout though..
https://www.amazon.com/gp/aw/d/B07Y...&pd_rd_r=f60e3025-9a48-4077-ae6e-36c10a26639a

 

[razorrc]

Good buggy, especially for the price.

 

[Horatio]

Good buggy, especially for the price.

That buggy looks like a blast. Bargain!

Imagine buying this as a first RC car!!! What an introduction to 1/8th buggies.

Another excellent showcase video in real time.

 

[razorrc]

That buggy looks like a blast. Bargain!

Imagine buying this as a first RC car!!! What an introduction to 1/8th buggies.

Another excellent showcase video in real time.

Thanks, they did a really good job with this buggy IMO.

 

[roseykr]

Looking for help to diagnose an issue. I've run this rig at least 40 times, and all has been great. However, recently the right wheel wobbles a bit, and I can see a corresponding movement in the steering block/servo, but it does not affect the left wheel. It runs straight and true. Any ideas on where I can look for the issue? Thanks in advance!

 

[Horatio]

Looking for help to diagnose an issue. I've run this rig at least 40 times, and all has been great. However, recently the right wheel wobbles a bit, and I can see a corresponding movement in the steering block/servo, but it does not affect the left wheel. It runs straight and true. Any ideas on where I can look for the issue? Thanks in advance!

Check your steering trackrods, pivot balls (in the hubs) and your upper a arms for wear.

You should also check your wheel hex.

Perhaps take some photos of the issue, or post a video, so we can narrow it down a bit.

 

[roseykr]

Check your steering trackrods, pivot balls (in the hubs) and your upper a arms for wear.

You should also check your wheel hex.

Perhaps take some photos of the issue, or post a video, so we can narrow it down a bit.

Thanks for the quick reply! Couldn't figure out how to upload a video to the forum, but here is a OneDrive link. Hope this works. Let me know what you see/suspect.

https://1drv.ms/v/s!AnbJ61blPdPEhNVwOqB7epv6Fus5rg?e=qVrkJJ

 

[Horatio]

Thanks for the quick reply! Couldn't figure out how to upload a video to the forum, but here is a OneDrive link. Hope this works. Let me know what you see/suspect.

https://1drv.ms/v/s!AnbJ61blPdPEhNVwOqB7epv6Fus5rg?e=qVrkJJ

Ok. 2 issues really -

Wheel looks out of round or poorly balanced.

They are often supplied badly out of balance, but can be easily balanced using a self adhesive wheel weights and a wheel balancer. Surprisingly cheap and easy to source.

Wheel inserts/foams can get wet. Cover any holes in wheel with tape to prevent water from entering. Foams will take forever to dry unless they are removed from the wheel.

Servo looks either to have slop in the gear train OR the horn is slipping on the splines on the output. You shouldn't have that much slop on your steering servo.

Dare I talk about RTR servos here? Or will it induce demons?

 

[roseykr]

Ok. 2 issues really -

Wheel looks out of round or poorly balanced.

They are often supplied badly out of balance, but can be easily balanced using a self adhesive wheel weights and a wheel balancer. Surprisingly cheap and easy to source.

View attachment 6915

Wheel inserts/foams can get wet. Cover any holes in wheel with tape to prevent water from entering. Foams will take forever to dry unless they are removed from the wheel.

Servo looks either to have slop in the gear train OR the horn is slipping on the splines on the output. You shouldn't have that much slop on your steering servo.

Dare I talk about RTR servos here? Or will it induce demons?

I really appreciate you taking the time to help out. I'll take a closer look at the servo/servo horn ASAP and maybe snag a wheel balancer and some wheel weights. I've got some spare servo's/horns hanging around...TBH, this RTR servo is actually quite powerful and fairly quick. I concur fully that RTR servos are generally trash...but I only have 5 proper rigs (By most folks interpretation anyways, and not including my Traxxas Hawk and TRX1 from the late 80's/early 90's )