MST CFX-W Scale RTR Scale Rock Crawler w/JP1 Body (313mm Wheelbase) (Grey)

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MST CFX-W Scale RTR Scale Rock Crawler w/JP1 Body (313mm Wheelbase)
Price: $349.99
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The MST CFX-W Scale RTR Rock Crawler is a high performance scale truck designed to deliver incredible performance. With a steel gear, planetary type forward motor transmission, and 4 link suspension with aluminum links, the CFX-W is a scale rig that can go anywhere the other guys can. Plus, the included JP1 body offers the look of a custom build with included scale details that will impress the most demanding scale enthusiasts.


  • MPA Portal Axle: The MPA portal axle design increases ground clearance and improves performance. The 4 gear design increases durability and helps to reduce torque twist through the chassis.
  • Planetary Gearbox & Dual Slipper Clutch: The planetary gear design provides efficient power transfer and high gear reduction ratio for stable power output. The dual slipper clutch design increases surface friction and provides a more precise holding power. The m0.6 pitch spur gear is suitable for high torque applications.
  • All Metal Transmission Gear Set: The car is equipped with high-strength metal gears for strength and durability.
  • 1.9" Wheels & Realistic Tires: The realistic 1.9” wheel is durable and looks good. The large tire size and rubber compound offers excellent performance and the large blocks tread design provides excellent bite.
  • Aluminum 4-Link Suspension: The aluminum links offer durability and rigidity. The Four-link suspension provides optimal performance.
  • Ball Bearings: Full ball bearings are included to help reduce rolling resistance and provide improved efficiency with longer run time.
  • UPDATED Heavy Duty CVD Shaft: The updated MXS-310094 CVD drive shafts are beefier, and machined from high grade spring steel to offer increased durability.   
  • Steel C-Channel Frame: The realistic steel C-channel frame is durable. Hex machine screws are used throughout the kit to provide torsional stiffness, while at the same time making the truck easy to maintain and work on. Multiple shock mount positions allow adjustability to suit your terrain and driving style.
  • Realistic Front Motor System:The front motor position adds to the realistic handling qualities of the model, and offers custom builders the space needed to add a custom interior or other modifications.

Length: 483mm
Width: 230mm
Height: 236mm
Wheelbase: 313mm
Gear Ratio: 1:36.3~1:53.4
Tire Width/Diameter: 40x120mm 

Needed to Complete:  

  • 7.4V - 11.1V LiPo Battery & Compatible Charger
  • (4) AA Batteries for Transmitter

This product was added to our catalog on June 20, 2019

Verified Owner
Monday, Jun 28 2021 (11 months ago)
MST CFX-W Scale RTR Scale Rock Crawler w/JP1 Body (313mm Wheelbase)
A very good and capable starter with portals. Worth the sale price but for full retail there are better options. Instructions could be better for electronics. It crawls good once you get the esc figured out. Transmitter is really cheap feeling. Does have the easy capability for 4 wheel steer as the rear axle is the same as the front with lock out links and comes with a spare servo mount and other rod ends.
Verified Owner
Friday, Feb 18 2022 (3 months ago)
MST CFX-W Scale RTR Scale Rock Crawler w/JP1 Body (313mm Wheelbase)
For the clearance price, it's a bargain. If I'd paid retail, the flaking paint right out of the box would be disappointing, but I got it for my kids to trash, so it's no more than an annoyance. It's top heavy, with virtually no aftermarket brass options other than wheels, so it'll be getting an upgrade to something substantially heavier. The ESC lacks an option to change the PWM, so you and your dog may not like the high-pitch noise it puts out. The stock servo is also noisy, even at rest, so I'll be swapping that out soon. On the plus side, the common axle housing for front & rear seems clever for parts availability, and the stock metal links are good to see. However, if paying retail, any of the Axial SCX10 II RTR variants would be better starting points.
Verified Owner
Monday, Jul 8 2019 (about 2 years ago)
MST CFX-W Scale RTR Scale Rock Crawler w/JP1 Body (313mm Wheelbase)
MST CFX-W This is now my favorite crawler and i have many.It's the most balanced one out of the box. Before this one the HPI Venture is the only one that is close.I don't own a Trx4. I base this on a couple of spots i crawl where there is a lot of pretty steep side hilling is involved. Most of my crawlers just tip over. But not this truck handles it no problem. Even on pavement driving at full speed turning left or right it won't tip over.It crawls great.The body is awesome. I really can't find anything bad.It runs very smooth also. This truck is just awesome and you wont be sorry if you buy one. Plus i received my FREE AMAIN HOBBIES Tee shirt. Thank you Amain hobbies for your excellent service.