The MJX H12Y and H12Y+ are two impressive 1/12 scale RC crawlers designed for enthusiasts who want a mix of durability, performance, and fine control. Both belong to the MJX Hyper Go crawler lineup and share a strong foundation in design and engineering. However, there are some subtle but important differences between them that can affect the driving experience depending on whether you prefer smooth crawling precision or slightly snappier throttle response.
Design & Build Quality
At first glance, both the H12Y and H12Y+ stand out with their rugged looks and premium construction. The aluminum chassis immediately sets them apart from budget crawlers, giving the models not only a stronger structural base but also a more polished aesthetic. The body designs — grey for the H12Y and yellow for the H12Y+ — give hobbyists a choice in style.
Durability is a major focus in these crawlers. Both cars feature oil-filled aluminum shocks, which absorb bumps and uneven terrain far better than spring-only setups. This translates to smoother driving, less chassis vibration, and greater stability on rocky trails. In addition, the all-metal transmission system (metal gears, metal drive shafts, and reinforced axles) means that wear and tear from heavy use or rough driving is significantly reduced. The full ball-bearing systemfurther ensures smooth operation and improved efficiency across the drivetrain.
Motor & Electronics
Both models are powered by a 3650 3500KV brushless motor, which provides strong torque and reliable performance. Where they differ is in the ESC (Electronic Speed Controller):
The H12Y comes with a 45A sensorless ESC (E45M). This makes it better for higher-speed response, offering quick bursts of power that feel snappier when tackling obstacles or straight-line runs.
The H12Y+, on the other hand, is equipped with a 45A sensored ESC (E45SDMF). The advantage here is smoother throttle control, especially at very low speeds. For crawling enthusiasts who enjoy technical trails, rock crawling, and precision maneuvers, the sensored ESC provides a much more natural driving feel.
This small difference makes the H12Y+ the better choice for those who enjoy scale crawling realism, while the H12Y is ideal for drivers who want a mix of crawling and fun bursts of speed.
Battery Life & Runtime
Battery performance is a big selling point of these crawlers. Out of the box, each comes with a 2S (7.4V) 2000mAh Li-ion battery, which delivers up to 45 minutes of driving time. This is already a generous runtime compared to many RC cars in the same category.
For enthusiasts who prefer extended sessions, there are package options that include two additional Snail 2S 3000mAh 25C batteries. These not only extend runtime significantly but also provide a higher discharge rate (25C), which helps the motor draw power more efficiently. Having multiple packs ensures that you can keep driving without long interruptions for charging.
Watch my complete video review here
Driving Experience & Control
Both models come with a 2.4GHz 4-channel remote control system, which provides a reliable 120-meter control range. This gives you plenty of freedom to explore trails, backyards, or crawling courses without worrying about signal drops. The transmitter is powered by AA batteries (not included), so it’s best to keep spares handy.
One of the standout features is the inclusion of a 20kg high-torque metal gear servo. Steering servos are often a weak point in RC crawlers, but this one provides plenty of torque for handling large rocks, steep inclines, and uneven terrain. Combined with the suspension system, the cars feel responsive and capable even in challenging conditions.
Lighting & Customization
Adding to the scale realism, both crawlers include front and rear LED lights, which make nighttime or low-light driving not only possible but also enjoyable. This small touch adds a lot of immersion for hobbyists who enjoy realistic trail runs.
The models also come with two sets of tires and extra shock springs, allowing for customization depending on terrain or personal preference. Whether you want softer suspension for rocky trails or firmer handling for flat surfaces, the included spares make adjustments straightforward.
Specifications
Scale: 1/12
Top Speed: ~12 km/h (designed for crawling, not racing)
Wheelbase: 232 mm
Tire Diameter: 90 mm
Dimensions: 390 × 205 × 185 mm
Weight: 1910 g (without battery)
Battery: 2S (7.4V) 2000mAh 15C Li-ion (upgradable to 3000mAh 25C)
Remote Range: 120 m
Servo: 20kg metal gear, high-torque
Strengths & Limitations
Strengths:
Solid aluminum chassis with full metal drivetrain components
Oil-filled shocks and ball bearings for smoother operation
Strong brushless motor with two ESC options
Long battery life with upgrade potential
LED lights and tire/suspension customization included
Durable and crawler-focused steering servo
Limitations:
Top speed is modest (12 km/h) — not suitable for racing fans
Transmitter requires AA batteries, which means additional upkeep
Reported delivery issues (such as missing promotional items) from some sellers may need consideration
Final Verdict
Both the MJX H12Y and H12Y+ deliver excellent value in the world of RC crawling. They are not designed for speed demons, but for those who love technical driving, trail runs, and realistic off-road adventures.
If you want a crawler with precise, low-speed control, the H12Y+ is the better option thanks to its sensored ESC. If you’re after a slightly more responsive and punchy experience, the H12Y with its sensorless ESC will suit you well.
Either way, you’re getting a durable, customizable, and capable crawler that feels like it’s built to last. For hobbyists in India and beyond, these models strike an excellent balance between performance and price, making them highly recommended in the mid-tier RC crawler market.
Why Buy from CrazyRC?
When it comes to purchasing RC crawlers like the MJX H12Y and H12Y+, CrazyRC is a trusted online store that focuses exclusively on RC products. Unlike generic marketplaces, CrazyRC curates quality models and accessories, ensuring that you’re not sifting through unreliable listings. They also provide detailed product descriptions, package options with extra batteries, and genuine parts, which means you’re getting exactly what’s advertised. For Indian hobbyists, CrazyRC offers the advantage of local availability, reliable shipping, and after-sales support, making it a safer and more convenient option than ordering from international sellers where warranties and replacements can be uncertain. they provide 6 months free AMC care which customer can extend up to 3 years
