Kyosho Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit

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Kyosho Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit
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Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit

This is the Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit. Built on the foundation of the competition-level Ultima RB5, the Dirt Master features high-quality performance components at a mid-range price. Its rear motor layout provides unbeatable grip and stability over low-traction surfaces like gravel and riverbeds. The nostalgic flair of the Dirt Master's updated body pays homage to the classic buggy design while incorporating modern performance features. And with its racing heritage, this buggy is equally at home on fully-fledged RC racing circuits as it is in the great outdoors.

Whether you're a beginner driver looking to step up your off-road game or a seasoned racer seeking some good old-fashioned bashing fun, the Ultima SB Dirt Master is the perfect choice. Get ready to experience the purest form of off-road excitement with the Ultima SB Dirt Master.


NOTE: Finished kit shown in the photos is for illustrative purposes only. See needed to complete list below for a list of items required to complete the model.

Features:

  • Based on a competition-level racing buggy, this unassembled EP buggy kit delivers high performance at a low price.
  • Rear motor design delivers excellent rear tire grip and superior control.
  • Included front/rear tires and wheels demonstrate stability over various types of road surfaces.
  • Classic style body with ageless smart design is equipped with a rear wing that enhances driving stability.
  • Resin main chassis is easy to assemble and exhibits moderate flex characteristics, and can be equipped with standard RC components.
  • Race-proven double-wishbone front and rear suspension is equipped with precision resin oil shocks.
  • Steering mechanism is equipped with a servo saver function that protects the servo from crash shocks.
  • Full bearing specifications as standard greatly improves drive system efficiency.
  • Compatible with optional parts for the Ultima series and racing springs.
  • Driver Set from 2014 Beetle (KYOSCB003B) can be installed to enhance scale realism.

Specifications:

  • Length: 380mm
  • Width: 249mm
  • Height: 140mm
  • Weight: 1,450g
  • Wheelbase: 270mm
  • Tire Size: Front:84×28mm Rear:86.5×42mm
  • Gear Ratio: 8.23:1

Includes:

  • (1) Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit
  • (1) Polycarbonate clear body
  • (1) Wing
  • (1) Window mask set
  • Decals
  • Chassis parts
  • Cross wrench
  • Hex wrench?1.5mm/2.0mm?
  • Grease
  • Tires with Tire Inners
  • Wheels
  • Pinion Gear

Needed to Complete:

  • (1) 2 Channel R/C System
  • (1) Servo
  • (1) Compatible ESC
  • (1) 540 Size Motor
  • (1) 7.2V Ni-MH Battery or (1) 7.4V Li-Po Battery
  • (1) Compatible Charger
  • Polycarbonate body paint
  • Silicone oil for Shocks
  • Assembly Tools

This product was added to our catalog on May 2, 2023

Allan VanZander
Verified Owner
Monday, Oct 16 2023 (about a year ago)
Kyosho Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit
This is a nice kit but you should know that it does not fit standard 2s Lipo sticks as they are too thick for the battery hold down unless modified. The kit does recommend 2 batteries however. Both are made by Gens Ace and are only 18mm thick.
5 customers found this review helpful.
Timmy Klatte
Verified Owner
Sunday, May 5 2024 (7 months ago)
Kyosho Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit
I got this kit a little while ago-when I first opened the box, I immediately printed the two pages from the manual that show you where all the different parts and, especially, shims are. This eliminated the constant back and forth looking for the correct shims-which seem to be an issue with this manual. In addition, there were a few steps in the assembly where it was a bit confusing as to how and/or where some parts would go. But it was not that difficult to figure it out. I also used a tray with several compartments and separated every screw and bolt according to size and thread type. This simple preparation eliminates a lot of time looking for specific fasteners when the assembly process requires them. When I assembled the shocks, I happened to have a large surplus of leftover Tamiya gold shock oil from previous kits. So I used that. A lot of folks would not recommend using Tamiya oil for a Kyosho-if you're gonna race it, then you will likely use something else. But for a basher like myself, it seems to work just fine.
Overall, prior preparation with arranging the parts before assembly will save a lot of time and frustration-and it will go together a lot faster. In my build, I used a 3300MaH NiMh 7.2v stick, a Hobbywing 1060 ESC, and a Dynamite 20t brushed motor. Old school to be sure-but inexpensive and reliable technology.
2 customers found this review helpful.
James Tracy
Wednesday, Apr 10 2024 (7 months ago)
Kyosho Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit
I like the car! It runs smooth as silk and straight as an arrow. I would give 5* but do have a few complaints.

1- instructions were terrible… lots of plastic shims that were hard to differentiate and was just plain hard to follow. Other than 6 bags of part trees, the parts can be difficult to find.
2- the typical 1/10 scale lipo race batteries don’t fit. I Macgyver’d it with a zip tie for now.
3- the spectrum esc I bought BARELY fits… I had to cut the mounts off and sand even further and it’s still crazy snug.

Now that it has been built and with a little part tweaking all is well. The car could win races, again it drives amazing. I would not recommend this kit for a beginner though.
1 customer found this review helpful.
Erik Mccallister
Verified Owner
Saturday, Apr 20 2024 (7 months ago)
Kyosho Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit
This was a fun kit to build. ran the old rb5 for years so this was a great flashback. had to track down some bits on ebay to upgrade it. I have not seen much support for replacement parts so I have not been back out to the race track with it.
William Wambolt
Verified Owner
Friday, Apr 26 2024 (7 months ago)
Kyosho Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit
This car is actually perfect for the closed end bell motor class at our local Rchr off-road track it’s a straight forward build and handles really well right out of the box
Wayne Freeman
Verified Owner
Saturday, Feb 10 2024 (9 months ago)
Kyosho Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit
This kit is a fascinating build - more parts are plastic than you'd expect, but the components are of extremely high quality. Make sure you have a set of calipers when you build, since all the shims come from parts trees. Otherwise, the process was fun, the car runs extremely well, and it makes for an excellent practice buggy that you don't necessarily have to drive on a groomed clay track.
Dan
Saturday, Jan 20 2024 (10 months ago)
Kyosho Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit
Plastic shock bushings and all ball joints. Broke a tierod, cant find anywhere, kyosho said sorry you ll have to buy some brand idk. Manual to build from is bogus. Not descriptive in size and difficult to folow. My last kyosho
1 of 2 customers found this review helpful.
paul smith
Verified Owner
Tuesday, Jan 16 2024 (10 months ago)
Kyosho Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit
This is an impressive kit. I've built a number of Tamiya RCs and appreciate the quality of those, but this buggy is on a different level. The parts fit together like a precision instrument. The fiber-reinforced parts are hard enough to wear out multiple knife blades trimming sprues. The chassis feels like it will take a lot of power (I'll sure I'll find out).

The instructions are quite complete, but you do have to refer to the part trees maps a lot to be sure you are using the correct parts. You do have a choice of shims on a number of suspension pivots so you can tune the geometry to your needs (or get in the weeds on setup) which is helpful.

One thing to be aware of is that this chassis is VERY compact. Choose your servo carefully, and a Hobbywing Quicrun 10BL 120 ESC is too tall for the sidepod with the fan on top.

All in all though, excellent product.
Steven M.
Verified Owner
Wednesday, Jan 10 2024 (10 months ago)
Kyosho Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit
The Dirt Master is a beautiful car that is priced just right. Its not often you can buy a 200.00$ car that comes with full ball bearings and turnbuckles. There is only 2 complaints i have with it. 1.) The instructions are not as clear and the parts are not marked with numbers. I had to keep a mm ruller on hand to make sure i had the right spacers. So if you do buy this make sure you have a mm ruler. 2.) There is not alot of room for electronics. I used a hobbywing quicrun 10bl120 brushless ESC and i had to make a esc plate to mount it on the battery plate just to get it to fit. Im not happy i had to drill 2 holes in the battery plate just to mount it. But i got it to fit without further modifications. Amain hobbies got the kit to me quickly within a few days so that made me happy. Overall, i love the car. I just wish it would stop raining so i can run it for the first time. Buy the car. Its worth it.
Megan Ekiss
Verified Owner
Tuesday, Jan 9 2024 (10 months ago)
Kyosho Ultima SB Dirt Master 1/10 2WD Electric Buggy Kit
Great little buggy! Picked one up for my daughter and we love it.
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