Service & repair
· Origin: South Korea
Dualtron repair & service
Minimotors’ Dualtron range is one of the benchmarks of the dual-motor performance scooter world. From Thunder to Storm, Achilleus to X2, plenty of Dualtrons have passed through our garage: brake conversions, controller and LED board repairs, wiring harness renewals, 5,000 km services. High current, a heavy frame and the rubber-cartridge suspension on most models give these machines a maintenance rhythm all their own. We know that rhythm.
- Diagnostics
- Free
- Models
- 10
- First service
- Before every ride
- Mail-in service
- Nationwide
THUNDER, THUNDER 2, THUNDER 3, STORM, STORM LIMITED, SPIDER, VICTOR, ACHILLEUS, ULTRA 2, X2
DUALTRON
Common faults
Problems we see in the garage, and how we fix them.
Models we service
- Thunder
- Thunder 2
- Thunder 3
- Storm
- Storm Limited
- Spider
- Victor
- Achilleus
- Ultra 2
- X2
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Fault 01
Handlebar and folding play
High torque and a heavy frame eventually create play in the handlebar stem and the folding mechanism. If you feel a knock while riding or a shake in the bars, don’t put it off: we take up the play and replace worn bushings and pins. We’ve shown the Ultra 2 handlebar-play fix step by step on our channel.
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Fault 02
Weak brakes and warped discs
Pinning the throttle and then hauling on the brakes overheats and warps the discs. A warped disc vibrates, makes noise and lengthens your braking distance. We replace discs and pads, and for anyone who wants more stopping power we do Magura conversions. We’ve fitted a Magura MT5 to a Thunder 2 and a Magura MT7 to a Thunder 3.
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Fault 03
Controller and LED control board faults
Sudden power cuts, one motor dropping out or LEDs with a mind of their own usually trace back to the controller or a board. Riding two-up also pushes the controller into overcurrent and overheating. We repair the board and replace the controller if needed.
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Fault 04
Wiring harness and connector overheating
At high current, thin or tired wires heat up and connectors melt. At 5,000 km services we check the harness from end to end. On a Thunder 3 we replaced the single-sheath motor cable with three separate, thicker wires.
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Fault 05
Hall sensors and motor bearings
Judder when pulling away, lazy throttle response or a hum from the motor are early signs of a Hall sensor or bearing problem. We open the motor, replace the sensor and bearings, and check the phase wires.
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Fault 06
Rubber suspension fatigue
The rubber cartridges in most Dualtrons harden or soften over time, and the scooter starts to bounce or bottom out. We choose cartridges to suit your weight and riding style, and grease the pivots.
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Fault 07
Display percentage drift
The battery percentage on Dualtron displays isn’t always accurate, and the speedometer can drift from GPS too. We read the real state from the voltage. For models with EYE4, EYE3 Connect, EYE2 and EYEA displays, the EyeX app offers live voltage and temperature monitoring.
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Fault 08
Battery and BMS cut-outs
A drop in range or a sudden shutdown under throttle can be the BMS cutting the circuit to protect weak cells. We measure each cell, correct the imbalance or replace the weak groups.
DUALTRON
Maintenance schedule
Write it in your service log: a scooter that sticks to these intervals won’t leave you stranded.
Intervals may need to be shorter depending on how hard it’s used, rider weight and road conditions.
| When | What gets done |
|---|---|
| Before every ride |
|
| Every 500 km |
|
| Every 1,000 km |
|
| Every 2,500–3,000 km |
|
| ~5,000 km major service |
|
DUALTRON
Through the garage
From our real job records.
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Dualtron Storm Limited: LED control board repair, rear rim and tyre replacement. -
Dualtron Thunder 2: Magura MT5 brake conversion. -
Dualtron Storm: 5,000 km service; controller, wiring harness, tyres and brakes. -
Dualtron: the first Dualtron serviced at our new address; mainboard repair, complete wiring harness and front motor bearing. -
Dualtron X2: brake service, pad replacement and cable tidy-up. -
Brand-new Dualtron Thunder 2: 8 cm handlebar riser.
YouTube · @stormgaraj
From our channel
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0:27 Dualtron Thunder 3 üzerinde küçük ama kritik dokunuşlar
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0:21 Dualtron Achilleus detaylı temizlik
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0:12 Dualtron Achilleus disk değişimi
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0:56 Dualtron Ultra 2 gidon boşluğu düzeltme
DUALTRON
What we do on this brand
- Mechanical diagnostics & maintenance ₺400 – ₺900 Estimated
- Battery repair & reconditioning ₺1,500 – ₺8,000+ Estimated
- Tyre replacement & repair ₺350 – ₺750 Estimated
- Motor repair & bearing replacement ₺800 – ₺2,000 Estimated
- Brake service, pads & hydraulic fluid ₺200 – ₺600 Estimated
- Custom mods & power upgrades Priced per project
FAQ
Common questions about DUALTRON
01 There’s play in my Dualtron’s handlebar. Can I keep riding it?
02 Can Magura brakes be fitted to a Dualtron?
03 Why is the battery percentage on my display wrong?
04 How often should a Dualtron be serviced?
05 Can I bring in my Dualtron while it’s still under warranty?
06 I’m outside Istanbul. Can I ship my Dualtron to you?
07 Do you charge for diagnostics?
08 How does mail-in service work?
Free diagnostics
DUALTRON owners, the garage is open.
Diagnostics are free. Book an appointment or send it in by courier.