Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Hobbywing XR10 Justock JS2 G3S ESC G2.1 21.5T Brushless Motor ESC Combo 38020373The Hobbywing XR10 Justock G3S ESC and G2. 1 21. 5T Sensored Brushless Motor Combo is purpose built for spec class racing, with fixed zero degree timing for optimal compliance. Ideal for 1 10 and 1 12 on road or off road vehicles, this combo delivers smooth, linear powermaking it an excellent choice for both beginner and experienced racers. Features Built in polarity protection prevents damage from reverse battery connection Programmable via OTA
The Hobbywing XR10 Justock G3S ESC and G2.1 21.5T Sensored Brushless Motor Combo is purpose-built for spec class racing, with fixed zero-degree timing for optimal compliance. Ideal for 1/10 and 1/12 on-road or off-road vehicles, this combo delivers smooth, linear power—making it an excellent choice for both beginner and experienced racers.
Features
- Built-in polarity protection prevents damage from reverse battery connection
- Programmable via OTA wireless module or 3-in-1 program box
- Internal capacitor module eliminates need for external capacitors
- RPM speed limit function with up to 6 selectable settings
- Fixed 0° timing optimised for stock class racing
- BEC supports up to 8A output at selectable 6V or 7.4V
- Supports both clockwise and counterclockwise motor directions
- Advanced protection functions including voltage, temperature, and signal loss
- Data logging capability for performance review
- Durable motor with heat-resistant design and high-precision components
- Sealed motor design prevents dust ingress and assists in heat dissipation
- Easy-to-maintain motor with detachable structure
- Compliant with IFMAR and ROAR standards
Specifications
- ESC Continuous Current: 60A
- ESC Burst Current: 380A
- Battery Compatibility: 2S LiPo only
- BEC Output: 6V/7.4V @ 4A (switch-mode)
- Motor Type Supported: Sensored and sensorless brushless motors
- Motor Limit: 10.5T or greater (3650 size)
- ESC Dimensions: 40.9 x 33.9 x 32.1mm
- ESC Weight: 75.4g (including wires)
- Motor KV Rating: 2050kV
- Motor Scale: 1/10 and 1/12
- Motor Voltage: 2-3S LiPo
- Motor Outer Diameter: 35.9mm
- Motor Length: 52.5mm
- Motor Shaft Diameter: 3.17mm
- Motor Weight: 175g
- Timing: Fixed
- ROAR Approved: Yes
Includes
- Justock G3S ESC
- Justock 21.5T G2.1 brushless motor
- 5V cooling fan
- Sensor cable
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 1001 reviews
Sort
Product Reviews
★★★★★ 5
Socks
Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
So cute
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all.
The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day.
They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable.
Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 16, 2026
★★★★★ 5
Perfect sucks
Size: Medium, Color: (001) Black / Black / Castlerock
Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026