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Spektrum Firma 85A Brushless Smart ESC / 4000Kv Sensorless Motor Combo, SPMXSEMC02

4.2 out of 5 stars 378 ratings
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Purchase options and add-ons

Brand Spektrum Glasses
Model name 85A Brushless Smart ESC / 4000Kv Sensorless Motor Combo
Material Plastic
Manufacturer Spektrum
UPC 605482692394

About this item

  • Spektrum Firma 85A Brushless Smart Esc / 4000Kv Sensorless Motor Combo, Spmxsemc02
  • Brand: Spektrum
  • Package Height: 6.61 Inches
  • Item Package Weight: 0.46 Pounds
› See more product details

Product information

Technical Details

Model Number ‎SPMXSEMC02
Assembly Required ‎No
Batteries Required? ‎No
Batteries Included? ‎No
Material type(s) ‎Plastic
Release date ‎Jan. 13 2021
Manufacturer recommended age ‎14 years and up
Item model number ‎SPMXSEMC02
Product Dimensions ‎17.27 x 13.21 x 5.33 cm; 460 g
ASIN ‎B08SVWQ4MN

Additional Information

Customer Reviews
4.2 out of 5 stars 378 ratings

4.2 out of 5 stars
鶹 Rank
Date First Available Jan. 13 2021
Manufacturer Spektrum
Place of Business Vancouver, BC V5Y 0J7, CA

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Spektrum Firma 85A Brushless Smart ESC / 4000Kv Sensorless Motor Combo, SPMXSEMC02

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Frequently bought together

Spektrum Firma 85A Brushless Smart ESC / 4000Kv Sensorless Motor Combo, SPMXSEMC02
This item: Spektrum Firma 85A Brushless Smart ESC / 4000Kv Sensorless Motor Combo, SPMXSEMC02
$200.08
Get it by Thursday, Jul 3
In Stock
Ships from and sold by 鶹.ca.
+
Spektrum Smart ESC Programmer: Avian and Firma, SPMXCA200, Black - RC Vehicle Speed Control Programmer - Includes USB Cable -
$65.99
Get it by Wednesday, Jul 2
In Stock
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Total price:$00
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Product description

Spektrum Firma 85A Brushless Smart ESC / 4000Kv Sensorless Motor Combo, SPMXSEMC02

Top Brand: Spektrum Glasses

Highly Rated
10K+ customers rate items from this brand highly
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1K+ orders for this brand in past 3 months
Low Returns
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Important information

Safety Information

WARNING: Read the ENTIRE instruction manual to become familiar with the features of the product before operating. Failure to operate the product correctly can result in damage to the product, personal property and cause serious injury. This is a sophisticated hobby product. It must be operated with caution and common sense and requires some basic mechanical ability. Failure to operate this Product in a safe and responsible manner could result in injury or damage to the product or other property. This product is not intended for use by children without direct adult supervision. Do not attempt disassembly, use with incompatible components or augment product in any way without the approval of Horizon Hobby, LLC. This manual contains instructions for safety, operation and maintenance. It is essential to read and follow all the instructions and warnings in the manual, prior to assembly, setup or use, in order to operate correctly and avoid damage or serious injury.

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Customer reviews

4.2 out of 5 stars
378 global ratings

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Customers say

Customers like the performance and ease of use of the electric motor. They mention it works decent in optimal conditions, is easy to setup and program, and the telematics is excellent. Customers also say the motor and ECS are completely plug-and-play.

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PerformanceEase of use
8 customers mention "Performance"8 positive0 negative

Customers are satisfied with the performance of the electric motor. They mention it works decent in optimal conditions, is easy to use, and has excellent telematics.

"...Very easy to use and excellent telematics. Thanks, Ash" Read more

"As advertised. Amazing system!" Read more

"...point twos with a 11 tooth pinion and a 45 tooth spur gear and she works great. 10 oh10 product." Read more

"Item arrived very quickly and overall its a great product, as described." Read more

6 customers mention "Ease of use"6 positive0 negative

Customers like the ease of use of the electric motor. They mention it's super easy to setup and program, and the brake force can be easily programmated. Customers also say the motor and ECS are completely plug-and-play.

"...Very easy to use and excellent telematics. Thanks, Ash" Read more

"Motor and ECS were completely plug and play, my 2wd slash absolutely rips with this motor on 2s...." Read more

"Price was great, the packaging is solid, and the install was easy for a newbie...." Read more

"...than expected even on 2s lipo made my Granite awesome, super easy to setup and program Highly reccomend" Read more

One of the best motor and ESC combos for brushless
5 out of 5 stars
One of the best motor and ESC combos for brushless
I would totally recommend this to anybody that has a Traxxas TRX four and wants to go brushless but for cheap because I’ve run two point twos with a 11 tooth pinion and a 45 tooth spur gear and she works great. 10 oh10 product.
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Top reviews from Canada

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  • philippe rouleau
    5.0 out of 5 stars traxxas tempede 2 wd
    Reviewed in Canada on May 11, 2025
    Verified Purchase
    super bien traxxas stempede 2wd ,facile a installer
    Helpful
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  • Cc
    5.0 out of 5 stars Can't go wrong!
    Reviewed in Canada on March 23, 2024
    Verified Purchase
    I use all different esc set ups and spectrum is worth the money!
    Very easy to use and excellent telematics.
    Thanks,
    Ash
    One person found this helpful
    Helpful
     Report
  • Matt
    5.0 out of 5 stars Amazing
    Reviewed in Canada on July 4, 2024
    Verified Purchase
    As advertised. Amazing system!
    One person found this helpful
    Helpful
     Report
  • RAMSEY
    1.0 out of 5 stars Don't find very good quality
    Reviewed in Canada on June 4, 2025
    Verified Purchase
    If find they motor sounds very gritty and loads up esc continues to just randomly cause rc to move on its own.
    Helpful
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  • Decent, not as strong of a hold as the other fisticuffs
    4.0 out of 5 stars No different than the brushed 15t motor... until
    Reviewed in Canada on August 9, 2024
    Verified Purchase
    The media could not be loaded.
    New to rc so installed all new electronics and motor was running backwards, switched two leads to the motor and this thing really woke up. Then found a YouTube video on how to program the esc because there is nothing in the instructions and big difference when the punch is turned up to 5. Have yet to put a 3s in it, slipper won't last long. Wheelie machine when it hooks up. Perfect swap on a 540 brushed motor. "Ecx amp truck"
    Customer image
    Decent, not as strong of a hold as the other fisticuffs
    4.0 out of 5 stars
    No different than the brushed 15t motor... until

    Reviewed in Canada on August 9, 2024
    New to rc so installed all new electronics and motor was running backwards, switched two leads to the motor and this thing really woke up. Then found a YouTube video on how to program the esc because there is nothing in the instructions and big difference when the punch is turned up to 5. Have yet to put a 3s in it, slipper won't last long. Wheelie machine when it hooks up. Perfect swap on a 540 brushed motor. "Ecx amp truck"
    Images in this review
    Customer imageCustomer image
    3 people found this helpful
    Helpful
     Report
  • Cole Barton
    5.0 out of 5 stars Fantastic Upgrade for Brushed 2wd Slash
    Reviewed in Canada on March 29, 2023
    Verified Purchase
    Motor and ECS were completely plug and play, my 2wd slash absolutely rips with this motor on 2s. I have ~20 bashing hours on this thing with 2s and 3s in wet, dry and snowy conditions with zero problems. Perfect budget upgrade to make a cheap truck fun again! 10/10
    3 people found this helpful
    Helpful
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  • mitchell
    5.0 out of 5 stars One of the best motor and ESC combos for brushless
    Reviewed in Canada on May 21, 2023
    Verified Purchase
    I would totally recommend this to anybody that has a Traxxas TRX four and wants to go brushless but for cheap because I’ve run two point twos with a 11 tooth pinion and a 45 tooth spur gear and she works great. 10 oh10 product.
    Customer image
    mitchell
    5.0 out of 5 stars
    One of the best motor and ESC combos for brushless

    Reviewed in Canada on May 21, 2023
    I would totally recommend this to anybody that has a Traxxas TRX four and wants to go brushless but for cheap because I’ve run two point twos with a 11 tooth pinion and a 45 tooth spur gear and she works great. 10 oh10 product.
    Images in this review
    Customer image
    5 people found this helpful
    Helpful
     Report
  • Anthony leclerc
    5.0 out of 5 stars AMAZING
    Reviewed in Canada on May 20, 2023
    Verified Purchase
    This thing is crazy! I didnt expected that much power for that price! Paired this with a 3s battery, broke my diff lock, broke my set of steel axles, but totally worth it!
    Customer image
    Anthony leclerc
    5.0 out of 5 stars
    AMAZING

    Reviewed in Canada on May 20, 2023
    This thing is crazy! I didnt expected that much power for that price! Paired this with a 3s battery, broke my diff lock, broke my set of steel axles, but totally worth it!
    Images in this review
    Customer imageCustomer image
    5 people found this helpful
    Helpful
     Report

Top reviews from other countries

  • Fab
    5.0 out of 5 stars good product
    Reviewed in Australia on August 31, 2024
    Verified Purchase
    Motor is good, the fan on the ESC is not too noisy either and it has plenty of power.
    Just keep in mind the Plug situation. All my batteries are on XT60 plugs so I needed to make a plug for it.
    Overall, its a good Product.
    Report
  • Andrew
    5.0 out of 5 stars Great Price!
    Reviewed in the United States on June 26, 2025
    Verified Purchase
    Great little system for on road or buggies!
    Report
  • Robert Causey
    5.0 out of 5 stars Great combo fast powerful
    Reviewed in the United States on May 20, 2025
    Verified Purchase
    Super fast combo works get in my 1/10th scale 4x4. Was more power then I expected.
    Report
  • Daniela Ramos
    5.0 out of 5 stars So good!
    Reviewed in the United States on May 17, 2025
    Verified Purchase
    The media could not be loaded.
    Doesn’t overheat. Makes the car fast and powerful. Very easy to install and so worth the money. My fiancé loves it!
    Report
  • Webb
    5.0 out of 5 stars Great product for the value
    Reviewed in the United States on March 31, 2025
    Verified Purchase
    Great quality product. I love the speed and response. great value for the money. Easy to install and setup.
    Report