Resources
Gear I Use
Everything on this page has earned its place through actual use. The bearings, tires, and tools listed here are what I reach for at the bench and at the track. None of it is sponsored. Some of it is affiliate-linked, which means I may earn a small commission if you buy through a link here. Full disclosure here.
Ball Bearings
Do this upgrade first, on every car, before anything else.
Stock Mini-Zs ship with plastic bushings. They create drag, they wear, and they introduce slop that makes the car feel vague. Replacing them with precision ball bearings is the single highest-impact upgrade on any platform. The car rolls freer, spins up faster, and holds its line through corners better. Not subtle.
For most club racers, quality steel ABEC-7 bearings are the right call. Ceramic hybrid bearings are worth the money at the motor and diff positions if you're racing regularly. Everywhere else, steel is fine. The bearing upgrade guide breaks down position-by-position impact if you want the full reasoning.
PN Racing Steel Bearing Kit
Full platform set in ABEC-7 steel. Covers all positions including motor, diff, knuckles, and wheel axles. This is the sensible choice for most builds. Buy one for each car.
Ceramic Hybrid 3x7mm Bearings
Ceramic matters most at the motor shaft, where RPM is highest and friction costs the most power. Swap just these two bearings if you want the main benefit without the full ceramic price tag.
Boca Bearing Ceramic Hybrid Set
Boca is one of the more reputable bearing houses for RC applications. If you're going full ceramic across the drivetrain, this is the brand to use. Worth it for regular racers.
Yeah Racing Ceramic Set - MA-020
The MA-020 has more bearing positions than the RWD platforms. Yeah Racing's MA-020-specific kit covers the count correctly. Don't guess on compatibility with a generic set.
Tires
Surface-matched compound is 80% of your setup on RCP.
Tire selection in Mini-Z is more nuanced than most other RC categories because the compound number actually tells you something: lower numbers are softer, higher numbers are harder. The surface you run on should drive the compound choice. Wrong rubber on RCP and a box-stock car will lap you.
For carpet and tile, compounds shift harder. Most drivers underestimate how much harder. The surface-by-surface compound guide has the full breakdown. If you race on RCP specifically, the RCP tire buyer's guide gives you exact part numbers to start with.
RCP (Foam Tile)
Kyosho Radial Wide 20°
The standard RWD rear tire for RCP. Very soft compound, wide contact patch for maximum mechanical grip. If someone asks what rear tire to run on foam, this is the answer. Part number: MZW38-20.
Kyosho Low Height Slick 30°
Soft enough for good turn-in without being twitchy. The low height sidewall reduces traction rolling risk in tight high-grip corners. Start here before going harder or softer. Part number: MZW39-30.
PN Racing Mini-Z Tires
PN Racing makes a solid line of aftermarket compounds that complement the Kyosho range. Useful for when you want something between standard compound numbers, or for AWD setups that need a different front-to-rear grip balance.
Kyosho Tire Tape
Non-negotiable. Without tape on the rear rims, tires slip under acceleration and the car feels slow and unpredictable. Buy this every time you buy tires. Wide and narrow versions exist - match to your rim width.
T-Plates & Flex Plates
The main tuning variable on RWD Mini-Z platforms.
The T-plate is the chassis flex point on MR-03 and MR-04 platforms. It controls how the rear of the car behaves under acceleration and through corners. Stock plastic T-plates have limited flex options and inconsistent behavior as they age. Carbon fiber plates give you a defined, repeatable flex that you can tune by swapping thickness.
Stiffer = more mechanical grip on high-bite surfaces. Softer = more rotation and traction on low-grip or bumpy surfaces. Most intermediate drivers run medium as a starting point and adjust from there. See the T-plate setup guide for how to read the car and pick the right flex.
PN Racing Carbon T-Plate - Medium
PN Racing carbon plates are the reliable choice. Medium flex is where most RCP setups land. Buy the medium first. Adjust toward soft or stiff based on what you observe at the track, not what someone tells you on a forum.
Yeah Racing Carbon T-Plate - Soft
Yeah Racing makes decent carbon plates at a slightly lower price point than PN. The soft variant is useful for high-grip RCP when you need the car to rotate more freely on corner entry without overdriving the rear tires.
Atomic RC MR-04 Flex Plate
Atomic makes MR-04 specific plates. The MR-04 chassis geometry is different enough from MR-03 that MR-04-specific plates are worth buying rather than trying to adapt a generic option.
Gyros
For RWD platforms only. Makes snap oversteer manageable.
At 1/28 scale, RWD Mini-Zs rotate fast. A gyro measures yaw and counter-steers automatically when the rear steps out. It doesn't drive the car for you - it catches slides that happen faster than you can react. Most competitive MR-03 and MR-04 drivers run one.
Getting the direction setting right is mandatory. Test it on every install. See the gyro setup guide for the direction check and gain tuning procedure.
KO Propo ESP Gyro
KO Propo makes quality electronics for Mini-Z. The ESP gyro is well-regarded in the racing community for smooth, predictable correction without the hunting behavior you get from cheaper units at higher gain settings. Pricier, but it works.
Kyosho MZW405 Gyro Unit
The OEM Kyosho gyro. Fits the MR-03 EVO mounting position directly. Not the most sophisticated unit on the market, but it's a known quantity and it works without compatibility headaches. Good choice for a first gyro install.
Acuvance Xarvis / Perfex
Acuvance makes competitive electronics at a lower price point than KO Propo. If you want gyro performance without the KO price tag, the Acuvance line is worth looking at. Check compatibility with your ESC before buying.
Batteries & Chargers
Consistent voltage = consistent lap times. This is not optional.
Alkaline batteries sag through the discharge cycle. The car handles differently in the first minute than the last, which makes every setup decision unreliable. Quality NiMH cells or a 1S LiPo with a proper low-voltage cutoff are the only options worth running.
The battery guide covers NiMH vs LiPo trade-offs and what you actually need before switching to LiPo (a brushless ESC with proper cutoff is non-negotiable). Most club racers are well-served by a good NiMH setup.
Panasonic Eneloop AAA
The NiMH cell the Mini-Z community has used for over a decade. 800mAh, 2100 recharge cycles, consistent output run to run. Buy two sets and rotate. One charges while you run on the other. Part number: BK-4MCCA.
Panasonic Eneloop Pro AAA
930mAh capacity for longer sessions. The trade-off is fewer total recharge cycles (500 vs 2100). Worth it for long race days where runtime per charge matters more than lifespan. Part number: BK-4HCCA.
La Crosse BC-700
Four independent channels with individual capacity readout. You can see exactly what each cell actually holds, which tells you when a cell is aging. The refresh mode recovers voltage depression in older cells. Run it on new cells before first use.
ISDT Q6 Plus
If you're running 1S LiPo in a Mini-Z with a brushless ESC, you'll likely have other RC gear that needs charging too. The ISDT Q6 Plus handles 1S through 6S at up to 14A. Balance charging only - never charge LiPo without the balance lead connected.
Tools
What's actually on the bench.
Mini-Z uses small hardware. You need precision drivers, not the generic hex set from a hardware store. The right tools make the difference between a clean install and stripped screws on a $30 T-plate.
Hudy 1.5mm Hex Driver
The most-used tool on any Mini-Z bench. Almost every chassis fastener is 1.5mm hex. Hudy makes precision drivers that fit the socket properly. Cheap drivers round out screws. Buy one decent driver before you strip your first motor mount.
RC Precision Hex Driver Set (1.5 / 2.0 / 2.5mm)
The three sizes you actually need for Mini-Z. A full set covers body posts, chassis screws, diff adjustments, and suspension hardware. Get a set with ball-end tips for working at awkward angles on tight chassis layouts.
Body Reamer
New Mini-Z bodies often need the body post holes opened up slightly to fit cleanly. A tapered reamer lets you do this without cracking the polycarbonate shell. One tool, used on every new body. Goes in the permanent bench drawer.
Thin CA Glue (Super Glue)
Thin CA on the tire sidewall stiffens the profile to reduce traction rolling on high-grip RCP. Also used to lock wheel hubs and secure body trim. The standard Loctite Super Glue works fine - thin viscosity only, not gel.
Lighter Fluid (Ronsonol)
The standard bearing cleaning fluid. Flush contaminated bearings until the fluid runs clear, then dry completely before re-lubricating with thin oil. Cheap, available everywhere, and it works better than most dedicated bearing cleaners.
Thin Oil (Tamiya Ball Diff Lube)
One small drop per bearing after cleaning. Thin oil only - grease is too thick for Mini-Z bearings and collects debris faster. Tamiya's thin oil works well and the bottle lasts a long time. Do not over-lubricate.
Transmitter
The stock KT-432P works. An upgrade is not urgent.
The stock transmitter that ships with ReadySets is functional. The trigger feel is mediocre and the steering adjustment range is limited, but it's not what's holding you back if you're still working through bearing and tire upgrades.
When you're ready for a proper wheel transmitter, the KO Propo EX-RR and the Futaba 4PV are the two I'd look at seriously for Mini-Z. Both have the fine steering dual-rate adjustment and exponential settings that matter for dialing in a competitive setup. Beginners tend to set steering dual rate at 100%. Most fast drivers run 70-85% to reduce mid-corner sensitivity.
KO Propo EX-RR
The transmitter a lot of serious Mini-Z racers run. Excellent steering feel, extensive fine-tuning options, and KO's gyro integration works natively if you're running their gyro. Not cheap, but it's a one-time purchase if you stay in Mini-Z.
Futaba 4PV
If you run other RC platforms beyond Mini-Z, the Futaba 4PV is worth considering because it works across 1/10 scale and larger too. S-FHSS protocol works with Mini-Z with the right receiver. Solid build quality, good ergonomics.