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HobbyStar Pro4, 4-Pole Brushless Sensored 4x4 SCT Motor

HobbyStar Pro4, 4-Pole Brushless Sensored 4x4 SCT Motor

9 Review(s) | Add Your Review

SKU: 375-09-CNF

Ask a question (6)

Availability: In stock

$65.99

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When it comes to 4x4 SCT's and Ebuggy "Lite" classes, horsepower is king! The HobbyStar Pro4 is an absolute powerhouse, and with sensored operation it offers you the same butter-smooth operation that all HobbyStar motors are known for. Precision-balanced 4-pole rotor provides huge torque and it is fully wrapped in Kevlar to ensure reliable operation at any RPM. Surrounded by a hand-wound stator and encased it in a beautiful CNC-machined 6061 T6 billet aluminum can it's the ultimate SCT motor to demolish the competition!

Features:

Kevlar wrapped, 4-pole rotor
High RPM precision ABEC5 bearings
CNC machined billet 6061 T6 aluminum heatsink can
Powerful sintered neodymium magnets
Hand-wound, high-purity copper 12-slot stator
Super thin (0.2m) stator laminations
High-power solder tabs with concave design for easy soldering
Precision engineered for maximum energy conversion

KV	Turn	Watts	Max Voltage	Max Amps	Rotor Poles	IO	Resistance	Max RPM	Length (mm)	Diameter (mm)	Weight (g)	Shaft (mm)	Shaft Length (mm)
1800	5T	1400	4S	80A	4	2.5A	0.0168	50,000	62.9	36	235	5	15
2500	4.5T	1400	3S	95A	4	2.8A	0.0125	50,000	62.9	36	235	5	15
3000	3.5T	1400	3S	108A	4	3.5A	0.0075	50,000	62.9	36	235	5	15
3500	3T	1400	2S	135A	4	4.0A	0.0062	50,000	62.9	36	235	5	15
4300	2.5T	1400	2S	150A	4	4.5A	0.0046	50,000	62.9	36	235	5	15

Reviews

Customer Reviews (9)

Great MotorReview by Fork

Value
Quality
Price

the 3000kv Variant is perfect for the 1/10 losi rock rey works great,much better then the stock not sensored motor.

(Posted on 9/9/2020)

Greatest bang for buck 4 poleReview by Jeff

Quality
Price
Value

Got this going with the hobbystar 150a esc, and having power is an understatement. Your face will be a bit sore from that big smile u got going on. (Posted on 10/2/2018)

Amazing motor Review by david

Quality
Price
Value

Wow this motor is awesome tons of power very smooth power delivery and runs very cool. (Posted on 9/17/2018)

Amazing motorReview by Frank

Quality
Price
Value

The 4300 is the fastest SCT motor i have ever ran. Paired with an 8000 100c battery from RC Juice and the $150 motors will be left in your dust. (Posted on 10/11/2017)

Great value and performanceReview by Jnyrcr

Value
Quality
Price

Keeps up with all the top motors and docent break a sweet, can't say enough about it, great quality not a cheaply made motor. (Posted on 1/22/2017)

Might be the best SCT on the market!Review by Marc

Price
Value
Quality

In heavy SCT trucks like the Tekno and the new Durango, this thing is ridiculous! Tons of power... Very smooth, and unbelievable price. Paired with an 8000 100c battery... your truck will smoke Tekins all day for 1/4 of the price. This motor and the 4600 Ten Shock are both amazing. You can't go wrong. Ill never run anything else (Posted on 10/8/2016)

Tekin KillerReview by Michael

Quality
Price
Value

What a deal. I bought this motor because I can't afford a Tekin. I don't think I've ever been so happy to be broke in my life. Here is a video of the Tekin RX8 and Pro4 HD versus my Hobbystar system. (Hobbystar is my green and black Tekno)

https://www.youtube.com/watch?v=bF2nzl7zzCE (Posted on 9/27/2016)

Awsome Motor!!!!Review by Aaron

Price
Value
Quality

I have tried many different motors, but by far this is the best, torque and speed if you want it buy this motor, save your money and buy the other products RC Juice offers have yet to be disappointed and probably never will, customer service is top notch (Posted on 8/28/2016)

Best motor I have ever hadReview by Logan

Price
Value
Quality

I have been using this motor for a couple weeks now (yes it just came out, I was testing it) and I have to say it surprised me. I had the 3000kv option and that seemed to be the sweet spot for the line between high-end and low-end power. Every time it would come off the track the temp would be 150 F and wasn't lacking any power. Not to mention the price of this motor, amazing deal. I had to get another one i loved it so much. (Posted on 8/1/2016)

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Product Questions

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Private question

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3
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Are these motors waterproof?

The sensor ports are not so t hey do not get a waterproof rating but you can seal up the sensor port with silicone.

RCJuice answered on October 3, 2018

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How does this motor compare to Tekin Pro4-HD motor

100% comparable to the Tekin at a lower price.

RCJuice answered on November 12, 2019

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How long is this motor? Thanks

62.9mm long and 36mm in diameter.

RCJuice answered on April 8, 2020

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What’s the minimum Lipo c output rating for the 1800kv hobbystar pro 4 motor? Will the skyrc toro 150 esc work with this motor?

The LiPo c-rating depends on the application and the total current draw, but in general 30C and up is more than adequate. The TS150 ESC will work on that motor as well.

RCJuice answered on May 3, 2018

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What esc do you recommend for the pro 4 4600 kv motor thanks

Either the HobbyStar 120A or 150A ESC is a great fir for these 120A is due back in stock later this week):

https://www.rcjuice.com/motor-esc/car-esc-s/1-8-esc-s/hobbystar-120a-brushless-sensored-esc-2-6s.html

https://www.rcjuice.com/motor-esc/car-esc-s/1-8-esc-s/hobbystar-150a-brushless-sensored-esc-2-6s.html

RCJuice answered on August 20, 2018

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Could I use the 2500KV in a 3S/4S Lipo in a 1/10 monster truck applications with 120Amp ESC & 2.8 Badlands MX28 on 17mm hex's?

You can run that setup, but as with ANY setup it's critical that you take time to monitor temps and adjust gearing as necessary. We have a good read on the subject here: https://www.rcjuice.com/power_system_setup

RCJuice answered on September 17, 2018