Sur-Ron Ultra Bee 21kW SWC Controller — Genuine OEM 21100-YQ5A-22B0, 2025 firmware
- Genuine Sur-Ron Ultra Bee 21kW controller, SWC version. Hardware 10.2025, firmware V5.02.01A — the current revision. New part removed from a brand-new bike. 12-month warranty, EU warehouse.
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Ultra Bee 21kW Controller, SWC version
P/N 21100-YQ5A-22B0 · model YCK072230A · firmware V5.02.01A
The data plate settles it: hardware 2025-10-27, firmware 2025-10-30. Most Ultra Bee controllers changing hands on the European second-hand market are 2023 and 2024 units running older firmware. This one left the factory in autumn 2025 — it is what Sur-Ron fits today.
Condition: new, removed. Taken off a brand-new bike during pre-delivery preparation. Zero kilometres, zero load hours. The „Motor Controller" label with Sur-Ron logo, part number and serial is in the photos — compare it with yours before ordering.
Data plate
| Model | YCK072230A |
| Part number | 21100-YQ5A-22B0 |
| Hardware | V1.04 · 2025-10-27 |
| Firmware | V5.02.01A · 2025-10-30 |
| Platform | 72 V |
| Manufacturer | Sur-Ron |
| Mounting torque | M8 · 20–22 N·m |
Fitment
Sur-Ron Ultra Bee 21kW, SWC version, 2025 model year and newer.
X/R versions, earlier model years and other power levels carry different part numbers. This one replaces 21100-YQ5A-22B0. Different number on your plate? Send a photo and we will check before you order. A controller is not a part you buy on a maybe.
Who buys this controller
- failure after water ingress, a voltage spike or overheating in sand,
- housing damage after a crash,
- a spare for a bike used commercially, in a rental fleet or in racing,
- a parts build.
Why buy here
Authorised dealer with our own showroom and workshop inside the European Union. Stock sits in our EU warehouse, not with a middleman in Asia — 2–4 days to Germany, Czechia, France and the Netherlands, no customs, no import charges, no container wait. If something does not line up during the fit, you get a human who has physically held this part.
The controller itself, with its factory built-in pigtail — leads and connectors are integral to the unit.
The bike’s main wiring loom, bolts and frame hardware — those stay with your machine.
This part carries our 12-month dealer warranty — the same as a new part, because that is exactly what it is.
The controller is in factory configuration. It does not raise output beyond the factory 21 kW.