Brushless motors are faster, more efficient and nearly maintenance-free; brushed motors are cheaper, simpler and smoother at very low speeds. For a basher you want to go fast, choose brushless. For a young driver, a tight budget or a slow crawler, brushed is still a perfectly good choice, and often the better one.
How we put this together
This explainer draws on manufacturer listings for real trucks sold both ways (Arrma's brushed and brushless Mojave GROM, Traxxas's brushed Bandit and brushless Mini Maxx) and on the Amazon sales data for motor/ESC combos, all checked October 3, 2026. We report only what manufacturers state. How we research.
How each motor works
Every electric RC motor spins by switching which coils are energized so magnets keep pulling the rotor around. The difference is what does the switching.
Brushed: carbon brushes press against a spinning commutator, mechanically switching the coils. It's cheap and simple, and the motor runs on two wires straight from a basic ESC. The brushes wear down with use, and the friction costs power. Brushed motors are usually rated in turns (Traxxas's Bandit uses a 12-turn Titan; the TRX-4 Sport a 21-turn Titan). Fewer turns generally means faster, more turns means more torque.
Brushless: the ESC switches the coils electronically through three wires, so nothing rubs. That means less heat lost to friction, more power for the size, and no brushes to replace. Brushless motors are rated in KV, explained in our RC motor KV guide.
Brushless vs brushed at a glance
| Brushed | Brushless | |
|---|---|---|
| Speed and power | Lower | Higher |
| Efficiency and runtime | Lower: friction and heat | Higher |
| Maintenance | Brushes wear out; motor eventually replaced | Bearings only |
| Cost | Lower | Higher |
| Low-speed smoothness | Very smooth | Smooth if sensored; can cog if sensorless |
| Rating | Turns (e.g. 12T, 21T) | KV (rpm per volt) |
| Battery | NiMH or LiPo (check ESC) | Usually LiPo for full performance |
| Best for | Kids, budget trucks, many crawlers | Bashers, speed, racing |
The same truck, both ways
The clearest comparison is a truck sold in both versions. Arrma's Mojave GROM is one:
| Mojave GROM (brushed) | Mojave GROM 223S BLX (brushless) | |
|---|---|---|
| ESC | Spektrum SLT 2-in-1 25A, waterproof | BLX brushless system |
| Battery | 2S LiPo + Smart charger included | 2S or 3S, not included (IC2-compatible) |
| Speed | Speed limiting at 50% or 75% from the transmitter | 35+ mph on 2S, 50+ mph on 3S (claimed) |
| Stability aid | Check listing | Spektrum DSC + throttle limiting |
| Who it's for | New and younger drivers | Drivers who want real speed |
Traxxas does the same at a different size: the brushed Bandit XL-5 (12-turn Titan motor, NiMH included, 35+ mph) versus the brushless Mini Maxx (BL-2s system, 2S LiPo included, 30+ mph in a much smaller truck).
When brushed is the better choice
- Young or nervous drivers. Less power is a feature. Brushed trucks are slower, cheaper to break and usually run happily on NiMH.
- Crawling on a budget. Brushed motors are smooth at a crawl and inexpensive. The best beginner crawlers, including the SCX24 and TRX-4M, ship brushed.
- You'll upgrade later anyway. A brushed truck with a good parts supply is a fine platform to convert once you know you love the hobby.
Sensored vs sensorless brushless
Brushless systems come in two kinds. A sensorless motor has only the three power wires; the ESC works out the rotor's position from the motor's own electrical feedback. That's simple and robust, which is why most ready-to-run bashers use it. The catch is at very low speed, where the ESC has little feedback to work with, so a sensorless motor can stutter or "cog" when pulling away slowly.
A sensored motor adds a small sensor cable that tells the ESC exactly where the rotor is. Starts are smoother and low-speed control is finer, which is why sensored systems dominate racing and why crawler-specific brushless systems exist. The trade-off is an extra cable to route and protect, and usually a higher price.
| Use | Best motor type |
|---|---|
| Backyard bashing, jumps, speed runs | Sensorless brushless |
| Track racing | Sensored brushless |
| Rock crawling on a budget | Brushed |
| Rock crawling, upgraded | Sensored or crawler-specific brushless |
| A young child's first car | Brushed |
Brushless and batteries
Brushless systems get their full performance from LiPo batteries, and many brushless ESCs are rated for 2S, 3S or more. More cells means more voltage and much more speed, so check what your ESC is rated for before plugging in a bigger pack. Brushed ESCs vary: some are NiMH-only or lack a LiPo low-voltage cutoff, which matters because LiPo packs are damaged by over-discharge. Traxxas tells owners to always turn Low-Voltage Detection on when running LiPo (Traxxas Battery Basics).
Upgrading from brushed to brushless
A brushless conversion needs both a motor and a matching brushless ESC. Buying them as a combo avoids compatibility guesswork. Popular choices on Amazon right now:
- Hobbywing Quicrun Fusion SE 1800KV: a motor with built-in ESC, popular for 1/10 crawlers (300+ bought last month).
- Hobbywing Quicrun WP 10BL60 G2 + 3652SL G2 combo: a waterproof sensorless system for 1/10 bashers.
- Hobbywing sensored G2 combo (10BL120 + 3650): sensored for smoother low-speed control.
- Castle Creations Copperhead 1410 3800Kv sensored combo: a premium 1/10 option.
Before you buy, check three things: the motor size fits your motor mount and pinion; the ESC supports your battery voltage (2S, 3S or more); and your driveline can take the extra torque. Brushless power finds the weakest gear or driveshaft quickly. Our first 5 upgrades list covers what to strengthen. If the conversion means switching to LiPo, set the ESC's low-voltage cutoff and follow the LiPo safety rules.
The bottom line
If speed is the point, buy brushless from the start: a later conversion means buying a motor, an ESC and often stronger driveline parts on top of the truck. If the truck is for a child, a crawler, or a tight budget, brushed is still a smart, simple choice. And if you can't decide, a brushless truck with throttle limiting, like the Arrma Mojave GROM 223S, lets you start slow and turn it up later.
Truck and combo details come from manufacturer Amazon listings, checked October 3, 2026. How we research · Affiliate disclosure