The Losi Micro platform is the best-kept secret in RC. For under $200 in upgrades, you can turn a $130 mini buggy into a pocket-sized monster that embarrasses cars twice its size. Every worthwhile Losi Micro-B upgrade ranked by impact — with specific products, real prices, and the exact order to do them.
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Losi Micro Platform — What Fits What?
The current Losi Micro lineup is two vehicles: the Micro-B (LOS00007, 1/24 scale, 2WD buggy) and the Micro-T (1/28 scale, 2WD stadium truck). Both run on the same mid-motor transmission platform with identical electronics bays, motor mount, servo bay, shock towers, steering rack, and battery compartment. If an upgrade fits one, it almost certainly fits the other — INJORA, Yeah Racing, GPM Racing, and Furitek all list their Micro-B parts as compatible with the Micro-T.
What is variant-specific: the chassis plate dimensions, body shell, wheels, tires, and body posts. Buy shocks, servos, bearings, motors, and aluminum suspension parts for the Micro-B and they'll drop right into a Micro-T. Buy a tire set and you need to specify which body style you own.
Worth noting: the old 1/36-scale Micro-T from 2006, the 4WD Micro SCT and Micro Rally from 2010–2015, and the Micro Crawler Trail Trekker are entirely different platforms with zero parts overlap. This guide covers the currently available 2026 lineup only. If you're curious about RC car scale sizes and how 1/24 fits into the broader hobby landscape, that guide is worth a read before buying.
Upgrade Priority Order — What to Do First
Don't just throw money at this car. There's an order that makes sense, and skipping ahead costs you.
| Priority | Upgrade | Cost | Impact | Difficulty |
|---|---|---|---|---|
| 1 | Aluminum Shocks | ~$20 | ★★★★★ | Easy |
| 2 | Battery Upgrade | ~$16 | ★★★★☆ | Easy |
| 3 | Servo | ~$39–$50 | ★★★★☆ | Easy |
| 4 | Tires | ~$12–$22 | ★★★☆☆ | Easy |
| 5 | Aluminum Chassis / Top Plate | ~$13–$20 | ★★★☆☆ | Easy |
| 6 | Brushless Conversion | ~$102–$120 | ★★★★★ | Moderate |
| 7 | Bearings | ~$12 | ★★★☆☆ | Easy |
| 8 | Aluminum Hubs / C-Hubs | ~$10–$15 | ★★★☆☆ | Easy |
Pro tip from hard experience: don't upgrade the servo first. I know the stock unit feels terrible, but a $20 aluminum shock set will make a bigger difference than a $50 servo. Shocks first, servo second. Trust me on this one.
1. Aluminum Shocks — The #1 Upgrade
The stock shocks on the Micro-B and Micro-T are friction dampers — plastic bodies, no real oil damping, and they flex noticeably under cornering load. After about 10 hard runs, they start giving inconsistent feedback and the handling becomes unpredictable. Aluminum oil shocks are the single upgrade that transforms how this car feels.
I've upgraded two Micro-Bs with aluminum shocks and the difference was immediately obvious on the first run. Corners that were sketchy became predictable. Jump landings that would have sent the car sideways started staying planted. It's the kind of improvement you don't realize you were missing until it's there.
The INJORA 4-piece aluminum oil shock set (~$19.99) is the best value pick. CNC-machined threaded bodies, two spring rate options included (0.45mm and 0.4mm), user-fillable with silicone oil. Front shocks are 33mm eye-to-eye, rears 35.5mm — both replace OEM part LOS-1765.
If you want something pre-filled and ready to bolt on with zero setup, the NEXX Racing NX-456 oil shocks (~$24.98, sometimes on sale for $11–$17) are worth the slight premium. Available at AMain Hobbies.
For premium builds, the GPM Racing LMB3236 6061 aluminum shock set (~$29) comes in six anodized colors and includes spare springs in two rates.
2. Battery Upgrade
Here's something most guides get wrong: the Micro-B already ships with a 2S LiPo — the Spektrum SPMX-1090 (7.4V 350mAh 30C with a PH 2.0 JST connector). There's no voltage system upgrade to make. The improvement you're buying is more capacity and a higher discharge rate.
The battery compartment fits packs up to roughly 36 × 27 × 12mm. Any 2S LiPo with a PH 2.0 plug in those dimensions works plug-and-play. The RCAWD 360mAh 2S 35C two-pack (~$15–$18) is the best bang-for-buck option — slightly more capacity than stock, 35C discharge (vs stock 30C), and you get a spare battery for back-to-back runs.
The Spektrum SPMX-1090 (~$12–$15) is the OEM replacement if you just want a direct swap with no compatibility concerns.
You'll want a quality charger that handles 2S LiPo properly — if you're still using the stock USB trickle charger, our charger guide will help you pick the right one. A decent 2S balance charger is a worthwhile investment.
3. Servo Upgrade
The stock Axial AS-1 servo produces about 17 oz-in of torque with plastic gears. It's slow, has a noticeable dead zone on center, and the gears will strip eventually if you're running on rough surfaces. A direct-fit metal-gear replacement changes how the car steers entirely.
The INJORA INJS480 coreless micro servo with servo saver (~$38.99) delivers 48.6 oz-in at 6V — nearly 3× stock torque — with an aluminum case, metal gears, ball bearings, and a built-in aluminum servo saver. It's engineered specifically for the Micro-B/T servo bay and plugs in without modifications.
For maximum performance, the EcoPower 625 aluminum digital servo (~$49.99) pushes 45.8 oz-in at 6V (or 62.5 oz-in if you're running HV). While EcoPower is a boutique brand, you can find high-torque 15T metal gear micro servos with the same corrected-geometry on Amazon that serve as a direct performance equivalent for brushless setups.
Important: don't buy a standard 1/10 or 1/18 servo for this car. The Micro platform uses a specific micro form factor (~22 × 11 × 24mm) with a 15T spline. The search links above are filtered for confirmed direct fits.
4. Tires
The stock tires are a general-purpose compromise that work acceptably on smooth pavement and nothing else particularly well. Surface-specific tires make a real difference in grip and handling feel, especially for indoor or carpet running.
The Micro-B uses asymmetric sizing (34 × 11mm front, 35 × 17.8mm rear) while the Micro-T uses uniform 35 × 17.8mm all around. All wheels run a 7mm hex. Match your tire purchase to your vehicle and intended surface:
For carpet and indoor racing: Purpose-built micro carpet spikes are essential for grip on high-traction surfaces. While boutique brands like UpGrade RC are popular, you can find high-quality pre-mounted carpet tires on Amazon that utilize the same "Spiker" tread pattern to keep your Micro-B planted in the corners.
For outdoor dirt and bashing: INJORA B1-compound pin tires (~$12–$16) with foam inserts provide massive traction on loose dirt and gravel at a fraction of the cost of premium racing rubber. These are the go-to for durability and grip outside.
For all-surface performance: If you want a tire that can handle both the track and the driveway, look for Electron-style pin tires. These feature a low-profile tread that offers stability on hard-packed surfaces without the "folding" feel of longer pins.
5. Aluminum Chassis & Plates
The stock chassis on the current Micro-B and Micro-T is already aluminum (an upgrade over older plastic-tub platforms), but the electronics mounting plate on top is where rigidity can still be improved. An aluminum top plate also makes battery swaps much faster and looks sharp with anodized color options.
The Hot Racing aluminum electronics mounting top plate (~$13.88) features a clever swing-up design secured with knurled thumbscrews—meaning you can swap batteries in seconds without ever touching a screwdriver. It adds structural rigidity to the chassis and is available in several anodized colors to match your build.
Check Price and Colors on Amazon
The Hot Racing LMCT1401 is the equivalent for the Micro-T.
For the chassis plate itself, the GPM Racing LMB016 7075 aluminum chassis plate (~$12–$18) replaces OEM part LOS-1766 and adds a small amount of rigidity over stock. Available at GPM Parts.
6. Brushless Conversion — The Endgame
This is the upgrade that turns a fun little car into something absurd. The stock brushed system does the job, but a brushless setup gives you 2–3× the speed, snappier throttle response, and genuinely more efficient power delivery. Before you do this, have shocks, bearings, and aluminum hubs done — the extra power will find every weak link in your drivetrain fast.
If you're new to the brushed vs. brushless question, our brushed vs. brushless guide breaks down the full comparison before you commit.
Furitek Grasshopper — The Purpose-Built System
Important clarification: the Furitek Komodo and Stinger are crawler systems for the SCX24 — they do not fit the Losi Micro. The correct product is the Furitek Grasshopper (FUR-2617).
The Grasshopper (~$101.99–$119.99) includes the MicroBeast 25A/50A sensored ESC with wireless Bluetooth app programming and the Storm Razor 1524 9500KV sensored inrunner motor with an 11T steel 0.5M pinion. It installs plug-and-play into the Micro-B and Micro-T motor bay. One significant caveat: the Grasshopper ESC requires a new transmitter and receiver — it's not compatible with the stock Spektrum SLT radio system. Budget an additional $40–$60 for a compatible TX/RX setup.
If you want just the motor to pair with a different ESC, the Furitek Storm Razor FUR-2616 is sold separately (~$49.99) and includes the 11T steel pinion.
Budget Brushless Alternatives
For a lower-cost brushed speed boost that doesn't require a new radio, the INJORA 030 45T drop-in motor (~$11) is a proven upgrade that fits the stock mount and pinion.
I went down the Grasshopper rabbit hole on my Micro-B and the speed increase is genuinely hilarious — this tiny car now keeps pace with my buddy's stock 1/16-scale Traxxas on the parking lot. The wireless ESC programming is a nice touch too; you can tune throttle curve from your phone without opening the car.
7. Bearings
Replace the stock bushings with ball bearings throughout the drivetrain. It's one of the cheapest and easiest upgrades on the car — smoother operation, less friction-related heat, and marginally more speed with zero tuning required.
A complete kit for the Micro-B/Micro-T contains 14 bearings in four sizes: 3×6×2.5mm (×8), 5×8×2.5mm (×2), 2×5×2.5mm (×1), and 1.5×4×2mm (×3). The INJORA stainless steel bearing kit (~$11.99) is a confirmed direct fit for both vehicles, uses sealed stainless steel construction, and is the most widely recommended option in the community.
Do bearings before the brushless conversion — you want the drivetrain spinning as freely as possible before adding motor power.
8. Aluminum Hubs, Carriers & Steering Parts
Stock plastic hubs and C-hubs crack on hard crashes, especially after you add brushless power. Aluminum replacements are more durable, reduce slop in the steering, and give a more precise feel overall.
The INJORA 6-piece aluminum set (front steering knuckles + caster blocks C-hubs + rear hubs, ~$8–$12) weighs just 4.54g total and bolts directly onto both Micro-B and Micro-T without modifications.
If you'd prefer a single kit that covers hubs, shock towers, steering bellcrank, and suspension mounts all at once, the Yeah Racing LSMB-S01 Essential Conversion Kit (~$43–$50) in blue or black anodized aluminum is the most comprehensive upgrade package available for this platform.
Complete Upgrade Budget Breakdown
| Level | Upgrades Included | Total Cost | Performance Gain |
|---|---|---|---|
| Essential (~$50) | Shocks + Battery + Bearings | ~$48 | Major handling improvement + longer run time |
| Serious (~$100) | Essential + Servo + Tires + Top Plate | ~$100 | Transformed car — steering is night and day |
| All-Out (~$200+) | Serious + Brushless + Full Aluminum | ~$200+ | Pocket rocket, genuinely fast |
At the all-out level, you've spent more on upgrades than the car itself. That's completely normal in RC. The upgraded Micro is a fundamentally different machine — and an incredibly satisfying one to build piece by piece.
FAQ
Q: Are Losi Micro-B and Micro-T upgrades interchangeable?
Mostly yes. Both vehicles share the same motor mount, transmission, servo bay, electronics bay, shock towers, and steering geometry. Shocks, servos, bearings, motors, and most aluminum suspension parts are cross-compatible. The variant-specific items are body shells, chassis plate dimensions, wheels, and tires — you'll need to specify which model when buying those.
Q: What is the best first upgrade for a Losi Micro?
Aluminum oil shocks, without question. The stock friction dampers are the weakest handling component on the car. A $20 INJORA shock set makes a more noticeable difference than any other single upgrade, including the servo. Everything else can wait.
Q: Can you make the Losi Micro brushless?
Yes — the Furitek Grasshopper (FUR-2617) is the purpose-built plug-and-play brushless system for the Micro-B and Micro-T. Budget $102–$120 for the combo plus an additional $40–$60 for a compatible transmitter and receiver, since it doesn't work with the stock Spektrum SLT radio. Expect a genuine 2–3× speed increase over stock.
Q: Is it worth upgrading a Losi Micro or should I just buy a bigger car?
If you enjoy the micro scale — apartment running, desk bashing, small backyard sessions — absolutely worth it. A fully upgraded Micro is one of the most rewarding cars in the hobby at this price point. If your goal is simply to go faster or bigger, a 1/18 or 1/10 might be a better investment. Check out our beginner's guide if you're still figuring out which direction to take the hobby.
Q: Where can I buy Losi Micro upgrade parts?
Amazon carries most of the INJORA, GPM Racing, and Furitek lineup. AMain Hobbies stocks Yeah Racing, Hot Racing, EcoPower, and UpGrade RC parts alongside OEM Losi replacements. For specialty items, injora.com and nexxracing.com ship direct. Horizon Hobby is the source for OEM Losi parts and the base vehicles themselves.
Conclusion
Start with shocks, work your way up the priority list, and enjoy every step of the transformation. The Losi Micro is one of the most rewarding platforms to upgrade precisely because every change is immediately noticeable at this scale — there's no waiting for incremental improvements to add up.
Interested in more Losi content? Check out our Losi NASCAR guide and Promoto-MX review for the rest of the lineup. New to the hobby overall? Start with our beginner's buying guide to figure out where the Micro fits in the big picture.
