🏁 Dominate Every Terrain with Cobra Racing’s 12mm Hex Extenders (see compatibility list below)
Take control of your RC car’s stance, balance, and performance with Cobra Racing’s 30mm Aluminum Hex Extenders. These precision-engineered 12mm extenders add a full 30mm of width per side, transforming your vehicle’s handling, cornering, and overall presence on the track or trail.
*(Available in multiple colors and styles, including 12mm extenders and 12mm–17mm conversion kits)
🔧 What This Product Does:
-
Widens track width by 30mm per side (total 60mm overall)
-
Improves stability and reduces body roll
-
Reduces chance of rollovers during high-speed cornering
-
Enhances appearance with a more aggressive stance
-
Compatible with all standard 12mm hex wheels
💥 Why This Upgrade Matters:
Whether you’re bashing, racing, or rock crawling, a wider stance equals more control. These extenders are especially useful for off-road applications and high-speed turns, giving you the confidence to push your RC to the limits without tipping or spinning out.
Made from aircraft-grade aluminum, these extenders are both lightweight and ultra-durable — perfect for repeated abuse on demanding terrains.
✅ Full Compatibility List:
These 12mm hex extenders are designed for most 1/10 Traxxas vehicles that use standard 12mm hex hubs:
🚗 Slash Series:
-
Slash 2WD
-
Slash 2WD VXL
-
Slash 2WD LCG
-
Slash 4×4
-
Slash 4×4 VXL
-
Slash 4×4 Ultimate
-
Slash 4×4 Platinum
🚙 Rustler Series:
-
Rustler 2WD
-
Rustler 2WD VXL
-
Rustler 4×4
-
Rustler 4×4 VXL
🛻 Stampede Series:
-
Stampede 2WD
-
Stampede 2WD VXL
-
Stampede 4×4
-
Stampede 4×4 VXL
🚜 Hoss Series:
-
Hoss 4×4
-
Hoss 4×4 VXL
🧗♂️ Other Traxxas 1/10 Models:
-
Traxxas Bandit
-
Traxxas Bandit VXL
-
Traxxas Rally 1/10
-
Traxxas Telluride
-
Ford Raptor (Slash platform)
-
Bigfoot
-
Ford Fiesta ST Rally
⚠️ Note: Not compatible with models using EHD setup / axles.
📐 Specifications:
-
Material: CNC-machined 6061-T6 Aluminum
-
Hex Size: Standard 12mm
-
Width Increase: +30mm per side
-
Color: Midnight Black
-
Mounting Hardware: Included (screws, pins, nuts, washers, etc…)
🔩 Package Includes:
-
4x 12mm Hex Extenders
-
All required hardware to ensure a full and complete install.
💬 Why Choose Cobra Racing:
Cobra Racing stands for performance, durability, and top-tier engineering. These extenders have been tested across dirt tracks, skateparks, and bashing sessions — and they deliver every time.
Upgrade your stance. Upgrade your control. Upgrade with Cobra Racing.
Verified owner Shawn Jenkins (verified owner) –
These are the bees knees! They’ve drastically changed the way the truck drives now and in a good way. Instead of rolling over all the time from the narrow suspension, it just spins around. Even at high speed. I’ve really been trying to and it just won’t roll. And it is bliss! Instead of rolling over, walking over to get it, inspecting it for damage (which is always likely), now there’s just pure enjoyment. Now, the negatives: biggest thing is the rubber o-ring “pin retainers”. Not good enough. I pulled mine and used small zip-ties in their place. Get rid of the rubber rings and use small size metal rings that are made like key rings so they can be snapped on and then stay tight. I already had one of the rubber rings roll out of place and the pin was ejected. Which brings me to #2: the pins are a bit too short. They need another 1mm-1.5mm added to their length. As it is they just BARELY reach enough to work. Those 2 things corrected and you’ve got gold
Verified owner James M. (verified owner) –
These extensions are excellent. The tolerances are minimal, do the fit us perfect.