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SWorkz S12-1R "US Edition" 1/10 2WD Mid Motor Electric Buggy Kit

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The SWorkz S12-1R "US Edition" is a 1/10 Scale 2WD Buggy platform tailored for US style tracks with the flexibility to run in either mid-motor or rear-motor configurations. Similar to the Carpet Edition, this kit features all the same option parts out of the box - 3mm 7075 aluminum chassis, numerous battery positions, 6mm aluminum front shock tower and aluminum lower arm holders - but eliminates the very low and long gear box that is only applicable in carpet or turf applications. 

The S12-1R also features the SWorkz Pure Oil Shock System (no shock bladders) with full aluminum shock bodies and aluminum shock caps, Eaglet Lexan body designed for more rear grip and steering response, two rear clean wings, 500cps shock fluid and 5000cps gear diff fluid. 


  • 3mm 7075 aluminum F.C.S.S. Chassis Design with B.H.C. (Black Hard Coating)
  • Mid-motor or rear-motor configurations
  • 3-Pads slipper design clutch system design
  • Standard with gear differential
  • Full oil system big bore shocks
  • Standard with 6mm 7075 aluminum front shock tower and rear 4mm pro-composite carbon fiber shock tower
  • Strengthened material arms with updated suspension geometry
  • Includes both 12mm and 14mm hex wheel hub system
  • C-hub steering system design
  • Adjustable steering plate with bell crank system
  • Full aluminum arm holders and toe-in plates
  • Fits saddle pack and shorty pack batteries
  • Standard with Sonic 6.5" Lexan wing (x2)
  • Standard with S12-1 Eaglet style body shell with top wing

Width: 248mm
Height: 145mm
Ground Clearance: 48mm
Wheelbase: 280-283mm
Track: F: 248mm / R: 243mm
Gear Ratio: 82/21
Weight: 1480-1580g


  • S12-1R Kit
  • Wheel Set (White)
  • Body
  • (2) Wing
  • 5000cps fluid
  • 500cps fluid

Needed to Complete:

  • 2-Channel Radio System
  • 1/10 Scale Electric Motor & ESC
  • 7.4V LiPo Battery (saddle pack or shorty pack)
  • Compatible Battery Charger
  • Steering Servo
  • Polycarbonate Paint (for the body)
  • 1/10 scale buggy tires, inserts & CA glue
  • Tools for assembly

This product was added to our catalog on February 12, 2016

Tuesday, Mar 22 2016 (about 3 years ago)
SWorkz S12-1R "US Edition" 1/10 2WD Mid Motor Electric Buggy Kit
I own the s12-1r usa edition witch I bought threw amain at my local hobby shop, thank you amain for having a dealer network now also. I just finished the build. very quality . the plastics that are used in the arms and various other parts is extremely tough and the ball cups are insanely strong. I believe they are even better then any of the rpm or kyosho cups. if you buy this kit expecting to only have the mid-center upright gear box and the rear motor gear box you will be wrong. this kit comes with that box yes but it also comes with the mid forward laydown gear box as well. now this is all good an well in fact the quality is top notch and I believe is above the big 3 kits from tlr ae any kyosho . the odd thing is the instruction manual. and the parts bags are not sworks normal. I own the ek1 and s104evo and the manuals and parts bags are labled and follow the manual really quiet well, this can not be said for the s12-mr. this kit is much like the AE kits where they bulk the bearings in one bag all one type of screw in another and another bag has a different type of screw. you need to open multiple bags to fetch parts for one step instead of just opening up one bag to do that step. I found it slightly confusing at first. then not a big issue but for set up tips you need to flip to the back of the book to check set up tips while building it as there are no notes on any one given step. also the shocks in this kit vers the 104evo may be the same shock with the pro seals the s12 shocks are very stiff in there stroke motion where the 104evo where looser. they are smooth and very nice but very very stiff. feel like 100 wt vers 20 wt oil when using 20 wt oil. also I found an inconsistency in the shims for the hinge pins ect but just spend the 6 bucks and buy the aluminum shim kits. other then that I do recommend this kit , its showing to be a very fast kit.
Sunday, Mar 6 2016 (about 3 years ago)
SWorkz S12-1R "US Edition" 1/10 2WD Mid Motor Electric Buggy Kit
This buggy is awesome!!! I haven't put 100% of my effort into dialing this buggy in and so far im on pace with the B5M. I have scored tq and a win on it already. I am however running on wet clay track with slicks and I have the s12-1m, so If I was running on dry dirt id go with the R version. The buggy is very durable and has amazing steering.
Sunday, Apr 9 2017 (about 2 years ago)
SWorkz S12-1R "US Edition" 1/10 2WD Mid Motor Electric Buggy Kit
I bought this car over a year ago through Amain and have been racing it hard every weekend. It has won some pretty big races running in Stock and mod class. It's really easy to Switch back and forth from stand up to lay down chassis going from track to track. It's got tons of adjustability and is extremely durable. The manual is a little tough to get through but fit and finish is second to none. Awesome car!!!!
Sunday, Jun 19 2016 (about 3 years ago)
SWorkz S12-1R "US Edition" 1/10 2WD Mid Motor Electric Buggy Kit
Just finished at 5 week series with my S12-1M buggie, and I must say this car will turn on a dime and give you 9 cents back, great reliable kit week after week ! TQ 4 out 5 races , and won the series with my sworkz, and thanks for Amain always having the parts that I might need
Wednesday, Nov 28 2018 (about a year ago)
SWorkz S12-1R "US Edition" 1/10 2WD Mid Motor Electric Buggy Kit
Damn nice buggy! Needs a few tweaks though. For my local track, SWorkz doesn't make a spur gear small enough. Using an AE B6.1 69t spur and slipper pads (Probably going to switch over to a slipper eliminator) with a 28t pinion. Also using a MIP Bi-Metal Ball diff for a B6 with the FRONT roller puck bones for a HB 4wd buggy. Diff needs a little shimming, bones fit perfect and it's all far less rotating mass than the stock setup. The front steering blocks seem to be a bit fragile, so stock up! The aluminum steering rack is a very nice addition, but requires shimming to avoid binding! The shocks are super smooth, but there are NO optional pistons available from SWorkz. Shock springs are all far too soft for use on astro. Losi and AE 12mm springs fit ok and work. Really needs sway bars front and rear. SWorkz doesn't offer one for the rear even though there are provisions. I am using a B6 rear. It fits and works well. There are NO provisions for a front unit. Kyosho DE Wheels fit well. Fit and finish on the kit parts is very good. Instructions are written well. There is no suggested setups anywhere, so consult your local track. One gripe I have is the inclusion of rubber sealed bearings. they have grease in them and slow things down. Either clean out the grease and relube with a light oil, or swap for shielded. Other than the front steering, I haven't broken a thing!
Sunday, Mar 27 2016 (about 3 years ago)
SWorkz S12-1R "US Edition" 1/10 2WD Mid Motor Electric Buggy Kit
very good design, durable and easy to work on....easy to drive neutral feeling 2wheeler