Lego Technic 42099 Sand Runner MOC
Rebuild your Lego Technic set 42099 "4x4 X-treme Off-Roader" into an extreme buggy called "Sand Runner" as an alternative model using these digital building instructions. No additional parts needed!
You can also get this MOC's .pdf building instructions from my own website at DavejspTechnicMOCs.com !
Functions:
- Remote-controlled drive and steering
- Independent suspension on all wheels
Worth mentioning aspects:
- It's RWD, the transmission has a differential and a final gear ratio of 2.34:1
- Decent ground clearance for off-roading, 4 studs at the front axle, 5 studs at the rear axle
- The planetary wheel hubs are not used on the rear wheels
- The button to turn on the hub is accessible through the driver's cabin
- Batteries can be easily swapped from below
- Needs a custom profile from the Powered Up app to be controlled. Detailed steps are provided within the MOC building instructions for this as well.
Digital building instructions sample:

Photos:






NO BRICKS INCLUDED! - YOU'LL GET ONLY THE DIGITAL BUILDING INSTRUCTIONS AND A PARTS LIST.
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Keywords:
Lego Technic, MOC, AFOL, building instructions, toy, building blocks, racing, remote-controlled, motorized, alternative model, alt build, lego 42099, off-road, rebuild, c-model, rc cars, buggy