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MY25-Specific Fitment
Cross-matched to part number 21100-YQ5A-22B0 / 21100-YQ5A-Z3 and built exclusively for 2025 Ultra Bee HP models — MY23-24 bikes run a different controller and aren't compatible.
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Surron - Ultra Bee - OEM Controller Assembly
OEMSKU: 21100-YQ5A-22B0
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$649.99$699.99
In stock, ready to ship
This is the factory MTPA/MTPV motor control unit for the 2025 Surron Ultra Bee HP, cross-matched to part number 21100-YQ5A-22B0 (also listed as 21100-YQ5A-Z3). It manages power delivery from the hairpin-wound permanent magnet motor, translating throttle input into smooth, precise acceleration across every ride mode from Eco to Turbo. Built specifically for the MY25 platform, this controller is not backward compatible with MY23-24 Ultra Bee models, so confirming your model year before ordering matters. Whether you're replacing a failed unit or restoring factory-tuned performance after a swap, this genuine Surron controller keeps your throttle response, torque curve, and ride mode switching exactly as engineered.
Will this fit your bike?
Quantity
1
1,500+ 5-star reviews
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Warranty included
Compatibility & Fitment
Make sure it fits
Verified vehicle fitment and compatible parts for the Surron - Ultra Bee - OEM Controller Assembly.
Fits these bikes
1 model| Year | Make | Model |
|---|---|---|
| 2025 | Surron | Ultra Bee HP |
Features
Highlights That Set It Apart
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Factory MTPA/MTPV Tuning
Runs Surron's field-oriented control strategy, the same programming your bike shipped with, so throttle mapping and power delivery feel exactly as intended.
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Direct Plug-In Replacement.
Matches the OEM wiring harness and mounting points with no reprogramming or splicing required, so it's a straightforward swap rather than a shop project.
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Built for Every Ride Mode
Handles the full spread from Eco through Turbo, plus Crawl and Reverse, delivering consistent response whether you're crawling technical terrain or opening it up.
Specifications
The technical rundown
Everything you should know about the Surron - Ultra Bee - OEM Controller Assembly.
01
Model Year Fitment. 2025 Surron Ultra Bee HP only, not compatible with MY23-24 controllers or wiring.
02
Control Strategy. MTPA/MTPV (Maximum Torque Per Ampere / Maximum Torque Per Voltage) field-oriented control for efficient power delivery and reduced heat buildup.
03
Motor Compatibility. Tuned specifically for the hairpin-wound permanent magnet motor used on MY25 Ultra Bee HP platforms.
04
Installation Type. Genuine OEM replacement, direct plug-in with the stock wiring harness — no aftermarket tuning or flashing needed.
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