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Give the metal accessory set a gentle first run so the surfaces can seat evenly before you ask for full performance. If the metal accessory set feels noisy or runs warm in one spot, stop and inspect the alignment before continuing. Check the metal accessory set against your motor and gearing, because a matched setup stays cool and efficient. A short inspection before each session lets the metal accessory set do its job quietly, and it takes less than a minute.
After the first session, recheck the metal accessory set for looseness, since new parts settle as they bed in. A well-fitted metal accessory set should feel invisible in use: even resistance, no wobble, and a model that tracks straight. If the model feels sluggish, look at the whole drivetrain around the metal accessory set, since alignment and gearing work together. Before final assembly, dry-fit the metal accessory set and confirm the axle width, spacing, and clearance match your chassis.
Wipe the metal accessory set down after dusty sessions and keep it dry, because clean surfaces stay accurate far longer. Balance matters more than force, and the metal accessory set works best when it is matched to the motor and weight of the build. Keep the metal accessory set free of grit and fibers, which can wrap around moving parts and add friction. Tighten the fasteners gradually and check that the metal accessory set still spins freely, because snug without friction is the goal.
If the metal accessory set feels noisy or runs warm in one spot, stop and inspect the alignment before continuing. Check the metal accessory set against your motor and gearing, because a matched setup stays cool and efficient. A short inspection before each session lets the metal accessory set do its job quietly, and it takes less than a minute. Give the metal accessory set a gentle first run so the surfaces can seat evenly before you ask for full performance.
A well-fitted metal accessory set should feel invisible in use: even resistance, no wobble, and a model that tracks straight. If the model feels sluggish, look at the whole drivetrain around the metal accessory set, since alignment and gearing work together. Before final assembly, dry-fit the metal accessory set and confirm the axle width, spacing, and clearance match your chassis. After the first session, recheck the metal accessory set for looseness, since new parts settle as they bed in.
Balance matters more than force, and the metal accessory set works best when it is matched to the motor and weight of the build. Keep the metal accessory set free of grit and fibers, which can wrap around moving parts and add friction. Tighten the fasteners gradually and check that the metal accessory set still spins freely, because snug without friction is the goal. Wipe the metal accessory set down after dusty sessions and keep it dry, because clean surfaces stay accurate far longer.
Check the metal accessory set against your motor and gearing, because a matched setup stays cool and efficient. A short inspection before each session lets the metal accessory set do its job quietly, and it takes less than a minute. Give the metal accessory set a gentle first run so the surfaces can seat evenly before you ask for full performance. If the metal accessory set feels noisy or runs warm in one spot, stop and inspect the alignment before continuing.
If the model feels sluggish, look at the whole drivetrain around the metal accessory set, since alignment and gearing work together. Before final assembly, dry-fit the metal accessory set and confirm the axle width, spacing, and clearance match your chassis. After the first session, recheck the metal accessory set for looseness, since new parts settle as they bed in. A well-fitted metal accessory set should feel invisible in use: even resistance, no wobble, and a model that tracks straight.
For anyone upgrading a motorized build, the metal accessory set paired with ZENE Bricks PF kits is the kind of combination that keeps paying off run after run. Quality metal upgrades give the whole build a polished, professional feel.
The metal accessory set is engineered for the demands of a powered conversion, where a stock part can flex or wear under load. Durability shapes the design of the metal accessory set as much as precision, because a running model punishes any part that is not up to the job. The metal accessory set also simplifies installation, because a part that seats cleanly without filing or shimming saves real time at the bench.
What makes the metal accessory set stand out is repeatability, the ability to fit the same way every time and hold its performance. The metal accessory set earns its place by disappearing into the build, working so smoothly that you stop noticing it is there. Heat and friction are the enemies of a drivetrain, and the metal accessory set is made to keep both under control in hard running.
The metal accessory set is built around standard Technic dimensions, so it slots into the drivetrain without forcing the rest of the build. Good running gear is measured by feel, and the metal accessory set is designed to rotate cleanly and quietly from the first session. The metal accessory set is a long-term investment in the model, keeping the drivetrain consistent long after the first few sessions.
Durability shapes the design of the metal accessory set as much as precision, because a running model punishes any part that is not up to the job. The metal accessory set also simplifies installation, because a part that seats cleanly without filing or shimming saves real time at the bench. The difference the metal accessory set makes is easiest to feel in motion, where a precise part translates into cleaner starts and quieter running.
The metal accessory set earns its place by disappearing into the build, working so smoothly that you stop noticing it is there. Heat and friction are the enemies of a drivetrain, and the metal accessory set is made to keep both under control in hard running. The metal accessory set is one of those upgrades that quietly transforms a motorized build, because every bit of power has to pass through it.
The ZENE Bricks Power Functions kit pairs with a low-latency lego motor, so the metal accessory set delivers smooth, reliable rotation on every run.
Good running gear is measured by feel, and the metal accessory set is designed to rotate cleanly and quietly from the first session. The metal accessory set is a long-term investment in the model, keeping the drivetrain consistent long after the first few sessions. Precision is the whole point of the metal accessory set: tight tolerances mean less play, smoother rotation, and less wasted motor effort.
The metal accessory set also simplifies installation, because a part that seats cleanly without filing or shimming saves real time at the bench. The difference the metal accessory set makes is easiest to feel in motion, where a precise part translates into cleaner starts and quieter running. The metal accessory set is engineered for the demands of a powered conversion, where a stock part can flex or wear under load.
For Remote Control Version:
Differential Parameters:

How to choose the differential version:
ZENE Bricks differentials are generally of two types: Square, suitable for 1:8 scale cars, such as the flagship models 42143 and 42232; and H-type, suitable for 1:10 scale cars, such as 42096 and 42156, as well as F1 cars.
Both types are available in dual-input and single-input versions. Dual-input is mainly suitable for cars with engine linkage. If the engine is removed, you can consider single-input only.
There are two types of outputs: male connectors are used to connect to universal joints, allowing the differential and wheels to be on different planes; and cross-head connectors can directly connect to the output shaft, generally used for outputs on the same plane, but this depends on your design.
Brushless Motor Parameters:
With to 1 : 4 planetary reduction box, suitable for vehicles under 3KG.
* If you need a reduction box with a reduction ratio of 1:16, please contact me separately

Why do we use this transaxle instead of the one that comes with Lego?
More Q&A: ZENE High Performance Brushless Motor Modification QA
The metal accessory set fits the standard Technic dimensions it is listed for, so confirming your axle width and spacing is the first step.
The metal accessory set is chosen for durability and consistency, keeping the model sharp over many sessions instead of just the first few.
Keep the metal accessory set clean and dry, wipe it after dusty sessions, and avoid lubricants that hold grit against the moving surfaces.