Your Cart: €0.00

Spend €115.00 more for free shipping!

View Cart and Checkout
J Concepts Magma - Platinum (pre-mounted on #3456)
J Concepts Magma - Platinum (pre-mounted on #3456)
J Concepts Magma - Platinum (pre-mounted on #3456)
J Concepts Magma - Platinum (pre-mounted on #3456)
J Concepts Magma - Platinum (pre-mounted on #3456)
J Concepts Magma - Platinum (pre-mounted on #3456)

J Concepts Magma - Platinum (pre-mounted on #3456)

Brand: JConcepts

Part No: SCH-JC4122-39812

32.76 RRP €34.49
Pre-Order

The JConcepts Magma Platinum pre-mounted tyres are built for high-speed bashing and rough terrain, supplied factory-glued on Shuttle wheels (#3456) for a dependable, ready-to-run assembly. A matched tyre–wheel package, they combine strength, grip and control straight out of the box. Part number: SCH-JC4122-39812.

The rugged, low-profile carcass features heavy inner x-bracing and sidewall support ribs to help minimise expansion at speed. A horizontal, bridge-shaped tread delivers strong forward bite, while diagonal relief cuts and outer receptors aid stability and steering feel. The race-enhanced compound and open-cell inserts provide versatile performance across dirt and mixed surfaces, and bold sidewall lettering completes the authentic look. Traditional 1:8 off-road style beads help the tyres stay secure in demanding conditions. An installed 12mm hex adaptor enhances versatility.

Key Features

  • JConcepts Magma tyre and Shuttle wheel development
  • Pre-mounted on #3456 Shuttle wheels
  • Horizontal, bridge-shaped tread for forward bite
  • Grippy, all-purpose, medium compound
  • Diagonal relief cuts and side-wall receptors
  • Inner support carcass ribbing with heavy x-bracing
  • Versatile open-cell insert
  • Installed 12mm hex adaptor

Measurements

  • Diameter: 4.25" (108 mm)
  • Width: 2" (51 mm)

Suggested Compatibility

  • 12 mm hex configurations; examples include Traxxas Rustler and Rustler 4x4

The Magma tire by JConcepts is an all-around performer for bashing and thrashing RC drivers looking to conquer the toughest terrain while driving at incredible speeds. Available as a pre-mounted option on Shuttle wheels, the tire is designed with extreme abuse and speed in-mind, the Magma tire has giant horizontal tread which is bridge shaped and constructed for massive forward-bite. The tire and wheel are designed to complement each other as a complete assembled unit.

 

The tire carcass is built on a low-profile and rugged carcass that mounts to the wheels with traditional 1:8th off-road style beads to hold steady in demanding terrain. The tires have heavy inner x-bracing, sidewall support ribs to help minimize expansion. The stance makes high-speed runs and turns possible and the race enhanced compound grips to just about any bashing or dirt surface imaginable. The tall tread provides a lot of life in multiple conditions and the detail in the tread with horizontal cuts, diagonal reliefs and outer receptors help the sidewall of the tire. Bold tire lettering on the outside of the tire gives a high impact look and authenticity exclusive to JConcepts.

 

The pre-mounted Magma tire is mounted with open cell inserts for versatility and dependability. The JConcepts Shuttle wheel is freshly designed for a wide range of enthusiasts who are looking for style and durability. The pre-mounted tires are factory glued, and QC checked to ensure consistency to perform quickly and with peace of mind. The replaceable hex adaptor included and assembled accommodates the 12mm hex based configurations and fits vehicles such as the Traxxas Rustler and Rustler 4x4.

 

Bashing and Thrashing vehicles have reached new heights. Dependable combinations, explosive power, and thrills pack a serious punch and together with JConcepts accessories, provide a winning combination. Product designs are packed with over 30 years of RC experience and backed with JConcepts customer support and racing heritage. When it comes to embracing the RC community, JConcepts supports hundreds of events per year and locks in on key events promoting racing, bashing, scale and trail activities, and series event participation. It’s this type of activity that helps the JConcepts Team strive for new heights in performance while interacting with the best the hobby has to offer.

 

Features:

  • JConcepts Magma tire and Shuttle wheel development
  • Pre-mounted on #3456 Shuttle wheels
  • Horizontal, bridge shaped tread
  • Grippy, all-purpose, medium compound
  • Diagonal relief cuts and side-wall receptors
  • Inner support carcass ribbing
  • Versatile open cell insert
  • Installed 12mm hex adaptor for versatility
  • (Fits – Traxxas Rustler / Rustler 4x4)
  • Pre-Mounted Tire Measurements: all sizes are approximate
    Diameter: 4.25" / 108mm
    Width: 2" / 51mm

 

Revo®, JATO™, T-MAXX™, SLASH®, DRAG SLASH® SLASH 4X4®, Rustler®, Stampede®, XRT®, Sledge® etc. are trademarks and registered trademarks of Traxxas L.P.



Key Info:
  • Brand: JConcepts
  • Part No: SCH-JC4122-39812
  • Barcode: 5051294198268
Standard Shipping

£3.95 to most of the UK

Express Shipping

£6.95 to most of the UK

Worldwide Shipping

Available at checkout

Reviews
No specific product reviews yet, why not write one?
WRITE A REVIEW
All reviews are subject to moderation
Questions & Answers
Real questions from real customers. Why not ask your own?
Hi, do these come with 17mm hex adapters? Thank you.
Ryan / 24th January 2026

These say 12mm hex and do not mention 17mm ones with it.

Steve @ Wheelspin Models
Hi Could you give me the outer dimensions please as I want to see if they would suit my rustler ultimate or be too big for it. Thanks
Matt / 7th August 2025

Diameter: 4.25" / 108mm
Width: 2" / 51mm

They are designed for the rustlers and are pictured on one in the images.

Steve @ Wheelspin Models
ASK A QUESTION
Get early access to deals and new arrivals.
Use this form to ask us a quick one sentence question about this specific product. Do not enter anything you would not like displayed on our site.

For more in depth queries, please contact us.