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Details
Details
The same 1/8 scale powerhouse design as the HobbyStar 4076 sensorless motor, the HobbyStar 4274 adds a sensor to provide silky-smooth operation at all RPM's. Gold-plated solder tabs feature a concave design to hold solder in place for an easy, clean connection to motor.
With the power to throw your truck around like a toy, the HobbyStar 4274 brushless, sensored motor is the ideal powerplant for to supply your 1/8 scale vehicle with tire-shredding power. 4-pole design and a 12-slot stator provide unbelievable torque. High-quality features like a beautifully machined 6061 T6 billet-aluminum can, buttery-smooth ABEC5 bearings and a 74mm length make this the ultimate motor for your monster truck or truggy.
Features:
- Brushless, sensored 4-pole motor
- 12-slot high-torque stator
- CNC machined 6061 T6 billet aluminum heatsink can
- High-purity copper windings maximize efficiency
- High-RPM ABEC5 oversized bearings
- Universal fit, fits all 1/8 brushless cars, multiple mounting holes with M3 and M4 threads
- Precision balanced rotor for smooth operation, reliability and maximum RPM
- Stator-Super Thin (0.2mm) laminations
- Removable/replaceable rotor
- Precision engineered for maximum energy conversion
| Product | KV (RPM/Volt) | Max Voltage | Max Amps | Rotor Poles | IO | Resistance | Watts | Max RPM | Length (mm) | Diameter (mm) | Weight (g) | Shaft Diameter (mm) | Shaft Length (mm) |
| 4274/6D | 1350 | <36V | 78A | 4 | 0.8A | 0.0175 | 2800W | 50,000 | 74 | 40/42 with fins | 375 | 5 | 20 |
| 4274/3Y | 1550 | <32V | 88A | 4 | 1.2A | 0.0131 | 2800W | 50,000 | 74 | 40/42 with fins | 375 | 5 | 20 |
| 4274/5D | 1700 | <29V | 95A | 4 | 1.9A | 0.0111 | 2800W | 50,000 | 74 | 40/42 with fins | 375 | 5 | 20 |
| 4274/4D | 2000 | <25V | 115A | 4 | 2.3A | 0.0079 | 2800W | 50,000 | 74 | 40/42 with fins | 375 | 5 | 20 |
| 4274/2Y | 2250 | <22V | 130A | 4 | 2.8A | 0.0066 | 2800W | 50,000 | 74 | 40/42 with fins | 375 | 5 | 20 |
Reviews
Customer Reviews (4)
- Every bit as good as the big dollar motorsReview by Dennis
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I purchased the 2000KV version for my Tekno ET48.3 and used it at my local club's trophy race. My first time running electric truggy, and i managed to podium in a crowd of guys running Tekin and Reedy motors. Power band is very smooth, and the power/speed is equal to the motors costing 3X more. Very happy with the purchase. (Posted on 7/22/2018)Quality Price Value - 2250kv seems perfect for meReview by Kevin
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I am testing the 2250kv version of the Hobbystar 4274 4-pole sensored motor in a Traxxas E-Revo Brushless Edition until it and a sensored ESC move to my Traxxas Summit. On 4S it seems just as fast and punchy as the stock 1515 2200kv motor and it is smoother than stock when run sensorless. When run sensored, it is leaps & bounds smoother. I love the fact that I can use either 3mm or 4mm motor screws to mount it. I was also pleasantly surprised how easy 10AWG wires soldered to the tabs. I am so impressed all around with the performance of this product that other Hobbystar motors will surely be added to my collection. (Posted on 12/29/2016)Price Value Quality - Fast!Review by Alejandro Gutierrez
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I was very impressed with this motor i run it on a 1/8 electric truggy kit in a can say i both good in and out of the track crazy fast and smooth! (Posted on 4/5/2016)Price Value Quality - Hobby Star 2000kv 4274/4D - Why Buy A Tekin ? Review by N/A
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Price Value Quality
I was looking for a good value motor to pair up with my Hobby Wing XR8 ESC and install into my Losi eight 3.0 T. Let me just say such a great value. This motor is very responsive, fast and smooth. I've owned Tekin motors, and I must say it feels basically the same. I don't see any reason to buy a Tekin over the Hobby Star. If it makes you feel better to own the Tekin, then spend the extra money. Will I buy again, Yes you can count on it. Also Customer service is great. Order was shipped in 2 days from Cali to Ohio. (Posted on 3/17/2016)
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Ask Question
What is a good gearing to race a 1/8 buggy? I would like to install in an rc8
A:
Proper gearing is trial and error, and is worth taking the time to monitor motor temps and get gearing dialed in: https://www.youtube.com/watch?v=N83dcvcAYrs&t=1s
RCJuice answered on March 24, 2019
How does the power compare between the 4274 motor and the 4076 motor? Which runs cooler/creates more power?
A:
The 4076 is going to provide more bottom end torque due to the longer design. How much heat either motor will generate is dependant on proper gearing and voltage selection. We highly recommend monitoring temps closely and adjusting gearing as needed.
RCJuice answered on June 22, 2020
Good for 8s ? Running castle mamba monster x 8s esc.
A:
The 1350kv and the 1550kv are rated for 8s use.
RCJuice answered on June 18, 2020
will this motor be able to run on 6s?
A:
They can, but it is still critical that you monitor motor temps and adjust gearing, any motor can overheat of not geared properly even when running within the voltage limitations. we have a good read on the topic here: https://www.rcjuice.com/power_system_setup
RCJuice answered on July 29, 2018
Is the sensored part of this motor compatible with the castle mamba monster x esc?
A:
This motor is equipped with an industry-standard sensor port and sensor wire, you may be required to use Castle's sensor harness adapter for use with the ESC.
RCJuice answered on July 12, 2021
Can you run 6s on the 2250?
A:
Yes, the 2250kv is rated for 6s use.
RCJuice answered on May 25, 2021
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