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Old 05-03-2008, 03:40 PM   #1
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Default Comparision of MBX5T Prospec and ST-RR

Well those are the last two choices I am considering to buy.

I hear the ST-RR is better all around than the MBX5T, but that it busts its fuel tanks often.

and for me I think Mugen parts will be easier and cheaper to get than Kyosho, but I am looking for performance and durability.

I mean its different in prices I have seen is $489 for the MBX5T Prospec and $559 for the ST-RR but if the almost $100 price difference is worth it, ST-RR it is.

well help me out if you can, give me links to mugen and kyosho reviews if you have them, and give me some advice.
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Old 05-03-2008, 04:27 PM   #2
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i love my st-rr and i have yet to break any thing on it. i did put foam under the tank the other day just because i had heard it was the thing to do but have not had a single problem and it is fast out of the box. put one of lutz setups on it and go!!!!
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Old 05-03-2008, 04:38 PM   #3
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is it a 17mm or 23mm hex?

does it have plastic or aluminum hub carriers?
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Old 05-03-2008, 06:41 PM   #4
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17mm and plastic rear hub carriers. Where did you see them for $559????
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Old 05-03-2008, 06:57 PM   #5
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I wouldn't trade my st-rr for any other truggy on the market today. I have been fortunate enough to be able to try out most of the top brands. The tank thing , I havn't had any problems I leave it set up loose so it can flex alot . The higher price tag on the truggy is worth it to me. Drive lines and diffs have very little wear after 6 months and 5 gallons .I have only replaced the left front lower arm do to my mistake .just my 2cents
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Old 05-03-2008, 09:27 PM   #6
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I hate to be that guy, but....
check out the Caster Racing one. I know a guy that is on the forums there and he loves his Caster way better than the ST-RR he is trying to sell.
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Old 05-04-2008, 12:01 AM   #7
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Originally Posted by hakmazter View Post
I hate to be that guy, but....
check out the Caster Racing one. I know a guy that is on the forums there and he loves his Caster way better than the ST-RR he is trying to sell.

If he hates his st-rr so much buy a caster truck and trade him even up

No seriously I have seen many casters run and to say I am not impressed with them is a major understatement.

As far as what truck to run, honestly man I dont know how much more info you need than what was already explained to you in the other posts. You cant go wrong with a kyosho or mugen.
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Old 05-04-2008, 05:37 AM   #8
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I've owned both at the SAME time. So I'm not going off of memory of how one felt vs. the other or having just driven someone elses. These were both mine with my set-up...

They both handle very similarly. They both are EXCELLENT vehicles. I've not had any issues with my ST-RR's fuel tank nor have I had any issues with the ring and pinion gears stripping. But then again, I'm pretty anal about maintenance on my stuff.

You can't go wrong with either.

The Mugen I've had ZERO problems with for the entire season I ran it last year. The only thing that left me DNFing a race was the pin falling out of an outdrive. Thankfully it was only a qualifier. But other than that, it never failed me....

The one really nice thing about the ST-RR is how "free" moving the drivetrain is. Very smooth and free.

If I had to pick only one, it would be the Mugen by just a hair. Its not so much which one handled better but which really minor things I don't like about the ST-RR...

1) The ST-RR uses sheet metal screws...
2) Under the center diff, it has shims, while this is easy to get in place when building the kit, try it when you have to do maintenance at the track...
3) The plastic ends on the chassis braces become loose over time allowing way too much flex. So those need to be checked. I've also had one pop-off.
4) The kit does not come with any tires. Compare that to the Mugen...

Now with all that said, I've kept the ST-RR over the Mugen only because, a few others have a Mugen and I wanted something a bit different at the track...
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Old 05-04-2008, 07:58 AM   #9
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bushyar15, The shims under the center diff mounts on your st-rr , I sanded them a little and put some CA glue on them, holds very well now for 6 months. I also pull the center diff very often give it try
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Old 05-04-2008, 10:41 AM   #10
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does anyone with the mugen have any issues with dirt getting in the pivots and them not turning as smoothly has the other design?

and the mugen shocks are they good even though they arent big bore?
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Old 05-04-2008, 05:14 PM   #11
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Quote:
Originally Posted by rcrevolution View Post
does anyone with the mugen have any issues with dirt getting in the pivots and them not turning as smoothly has the other design?

None once and a while I spray some tri flow or boeshield in there but thats it turns smooth as silk. You probably already know but in case you dont tri flow and bowshield are both very fine quality lubricants that I found works great for this application.

and the mugen shocks are they good even though they arent big bore?
The mugen shocks are the best shocks I have EVER owned! I never did have the kyosho big bores but the kyosho shocks before the big bores would tear bladders all the time, hopefully that problem was fixed with the big bores but I dont know.
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Old 05-05-2008, 07:24 PM   #12
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Well guys I made up my mind and in about 2 weeks time I will purchasing a new





Mugen Mbx5t prospec!
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Old 05-05-2008, 08:00 PM   #13
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The older Kyosho shocks needed the foams under them. I have Kyosho Big bores and the bladders are fine. FYI, I have the K BB's on my MBX5T, MBX5R as well as my WC.

Also, find your MBX5T now, as Mugen does have anymore more kits in stock and will not be getting anymore I hear, so get whats out there very soon.
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Old 05-06-2008, 06:22 AM   #14
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wait...mugen has no more kits? as in they arent making anymore from here till the new kit comes out?

does that mean a new kit is coming out sooner?

because having no truggies from may till october is bad bussiness.
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Old 05-06-2008, 08:39 AM   #15
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Mugen ran some special, so alot of the kits were bought up by hobby stores, so they will have the stock now.
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