Surpass Hobby 3680 1800KV Brushless Inrunner Motor – 5 mm Shaft, Black
£43.00
Surpass Hobby 3680 1800KV inrunner motor with a 5 mm shaft, 4 mm gold bullet connectors, and a black‑and‑red aluminium housing. Rated for 105 A, 19 V max, 2000 W, and weighing 376 g, this motor delivers exceptional torque and stable high‑power performance for both 1/8 RC cars and large 90–100 mm EDF jets. Perfect for 4S–5S heavy‑load setups requiring strong acceleration and reliable thermal behaviour.
In stock
Surpass Hobby 3680 1800KV Brushless Inrunner Motor – 5 mm Shaft, Black
A 3680‑size inrunner sits in the “big power” class of Surpass motors, and this 1800KV version is built for heavy‑load applications in both 1/8 RC cars and large EDF aircraft. The long 80 mm can, 4‑pole rotor, and hardened 5 mm shaft give it exceptional torque and sustained pulling power. With a maximum current rating of 105 A, maximum voltage of 19 V (4–5S LiPo), and maximum power output of 2000 W, this motor is designed for serious acceleration, high‑load running, and strong thermal stability. The motor weighs 376 g, giving it the mass needed for heat absorption during extended high‑power use.
The black‑and‑red aluminium housing and pre‑installed 4 mm gold bullet connectors keep it consistent with the rest of the Surpass Hobby performance lineup.
Performance in RC Cars
The 1800KV rating gives this motor a torque‑heavy, controlled powerband ideal for heavier 1/8 platforms and high‑traction surfaces. Its electrical limits make it a strong match for:
- 1/8 buggies and truggies needing torque over RPM
- 1/8 monster trucks and crawlers with high load
- 1/8 GT and rally cars on 4S LiPo
- Speed‑run builds where stability and torque matter more than extreme KV
The 3680 length provides excellent thermal mass, allowing long runs without overheating, especially in off‑road or high‑load conditions.
Performance in EDF Aircraft
The 3680 1800KV inrunner is well‑suited to large EDF systems that require torque and sustained RPM rather than ultra‑high KV. Its specifications align with:
- 90 mm EDF units (excellent match for 4S–5S)
- 100 mm EDF units depending on rotor load
- Large twin‑EDF jets
- Heavy airframes needing strong thrust on moderate voltage
The 5 mm shaft fits most 90–100 mm EDF rotors, and the 19 V max voltage aligns with 4S–5S EDF power systems. The 2000 W power rating provides enough thrust capability for large, fast jets without thermal collapse.
Key Features
- 3680‑size brushless inrunner
- 1800KV rating for high torque and controlled RPM
- Maximum current: 105 A
- Maximum voltage: 19 V (4–5S LiPo)
- Maximum power: 2000 W
- Weight: 376 g
- Pre‑installed 4 mm gold bullet connectors
- 5 mm hardened steel shaft
- Black and red aluminium housing
- 4‑pole rotor for efficient torque delivery
- Suitable for 1/8 RC cars and 90–100 mm EDF jets
- Ideal for 4S–5S high‑load applications
| Weight | 380 g |
|---|---|
| Dimensions | 10 × 10 × 10 cm |
