125cc Remaps – ECU Tuning & Performance
Optimization for 125cc Motorbikes
At 125cc Remaps, I specialize in remapping and fine-tuning ECU systems for 125cc motorbikes to improve performance, throttle response, and fuel efficiency. I diagnose engine parameters, adjust fuel and ignition maps, and unlock hidden power while keeping reliability and emissions in check. My goal is to help riders get the best possible ride out of their machines — legally, safely, and efficiently.
Dyno test
Dyno Results: Bullit Hero 125cc euro 4
Stock Power (Before)
7.53 BHP
Remapped Power (After)
8.68 BHP
Key Improvements: By custom tuning the Delphi MT05 ECU, we safely increased the rev limiter by 1000 RPM and fixed the factory lean spot at 3000-6000 RPM. The bike now pulls much harder in the mid-range and achieves a higher top speed.
*Dyno tested at 125cc Remaps UK. Results may vary slightly depending on exhaust and engine mods.
Tuning database
1
Check Your Bike
Use our database below to verify if your motorcycle’s ECU is supported.
2
Post Your ECU
Carefully remove your ECU module and post it securely to our workshop.
3
Plug & Play
We remap it and send it back. Just plug it in, start the engine, and enjoy!
Mail-In Remapping Service
£90 – £150
Price depends on your motorcycle model and specific ECU type.
Includes: Custom Fuel/Ignition Mapping • Rev Limiter Adjustments • Better Throttle Response • Return Shipping Options
Tired of generic tuning that falls short? At 125ccRemaps, we believe true performance comes from a custom approach. Our specialized Tuning Diagnostic Questionnaire is the fastest way for you to achieve the exact results you want from your motorcycle.
Type your bikes info
Search database
Showing the 10 most recent entries. Use the search bar to find your specific bike.
Motorcycle not found in our database. Use the form below to ask us!
| What Bike? | What engine cc? | What year of your bike? | Tune Status |
|---|---|---|---|
| Honda | 125 | 2025 | IN FUTURE |
| Yamaha wr125x | 125 | 2014 | IN FUTURE |
| Suzuki gsxr 125 | 125 | 2019 | IN FUTURE |
| Cb125f | 125 | 2022 | IN FUTURE |
| Mutt razorback | 125 | 2024 | RESEARCHING |
| Lexmoto lxr se | 125 | 2023 | NO WAY |
| Cb125f | 125 | 2022 | IN FUTURE |
| Sym Wolf | 125 | 2020 | NO WAY |
| Motron X-nord | 125 | 2022 | CAN BE TUNED |
| Ktm | 125 | 26 | IN FUTURE |
| Mutt akita | 125cc | 2022 | NO WAY |
| Voge r125 | 125cc | 2025 | NO WAY |
| Fb mondail smx | 125 | 2025 | NO WAY |
| Wk bikes sx125cc | 125 | 2022 | NO WAY |
| Yzf125 | 125 | 2018 | IN FUTURE |
| hanway | 125 | 2026 | RESEARCHING |
| mash | 125 | 2022 | CAN BE TUNED |
| Xsr | 125 | 2025 | IN FUTURE |
| Cbr125r-f | 125 | 2015 | IN FUTURE |
| Husqvana svartpilen | 125 | 2025 | IN FUTURE |
| Peugeot speedfight 3 | 125cc | 2017 | NO WAY |
| Benelli | 125 | 2020 | CAN BE TUNED |
| Neco Abruzzi | 125 | 2017 | NO WAY |
| Honda cbr125r | 125 | 2008 | IN FUTURE |
| Yamaha WR | 125 | 2016 | IN FUTURE |
| Suzuki gsxr | 125 | 2020 | IN FUTURE |
| Voge r125 | 125 | 2025 | NO WAY |
| Lexmoto lxr | 125 | 2019 | CAN BE TUNED |
| Mgb atx | 125 | 2024 | CAN BE TUNED |
| Aprilia | 125 | 2021 | IN FUTURE |
| Lexmoto Isca | 125 | 2020 | CAN BE TUNED |
| Lexmoto lxs | 125 | 2021 | CAN BE TUNED |
| Benelli bn 125 | 125 | 2020 | CAN BE TUNED |
| Lexmoto diablo | 125 | 2019 | CAN BE TUNED |
| YAMAHA WR | 125 | 2016 | IN FUTURE |
| royal alloy | 125 AC | 2019 | CAN BE TUNED |
| honda msx | 125 | 2025 | IN FUTURE |
| Songchin | 125 | 2007 | NO WAY |
| fb mondial hps | 125 | 2017 | NO WAY |
| lxr | 125 | 2025 | NO WAY |
| Keeway fact 125 | 125 | 2024 | NO WAY |
| Honda cb125r | 125 | 2022 | IN FUTURE |
| Keeway v125 | 125 | 2023 | CAN BE TUNED |
| Yamaha | 125 | Yzf r 125 | IN FUTURE |
| Lexmoto lsz | 125 | 2025 | CAN BE TUNED |
| Svartpilen 125 | 125 | 2025 | IN FUTURE |
| Neco Abruzzi | 125 | 2017 | RESEARCHING |
| Hyosung Aquila | 125 | 2025 | RESEARCHING |
| Lexmoto adrenaline | 125 | 2019 | CAN BE TUNED |
| Lexmoto RSS | 125 | 2024 | RESEARCHING |
| voge | 125 | 2025 | NO WAY |
| Lexmoto lxr | 125 | 2020 | CAN BE TUNED |
| brixton | 125 | 2017 | RESEARCHING |
| Benelli | 125 | 2022 | CAN BE TUNED |
| Lexmoto Ocr | 124 | 2025 | RESEARCHING |
| Kawasaki | 125 | 2021 | IN FUTURE |
| LEXMOTO LSZ | 125CC | 2023 | CAN BE TUNED |
| Wr125x | 125cc | 2015 | IN FUTURE |
| Honda cb125f | 125 | 2022 | IN FUTURE |
| Keeway | 125 | 2026 | RESEARCHING |
| royal alloy | 125 | 2024 | CAN BE TUNED |
| Sinnis terrain | 125 | 2023 | CAN BE TUNED |
| Lexmoto (Cyclone) carrera | 125 | 2025 | IN FUTURE |
| Bluroc legend | 125 cc | 2025 | CAN BE TUNED |
| Kawasaki Ninja | 125 | 2019 | IN FUTURE |
| Lexmoto LSZ | 125 | 2024 | CAN BE TUNED |
| Honda CB125R | 125cc | 2020 | IN FUTURE |
| Benelli tnt | 125 | 2022 | CAN BE TUNED |
| Ktm duke 125 | 125 | 2022 | IN FUTURE |
| benelli tnt | 125 | 2024 | CAN BE TUNED |
| Ktm smc r 125 | 125 | 2025 | IN FUTURE |
| Mash seventy | 125 | 2024 | RESEARCHING |
| KTM RC | 125 | 2018 | IN FUTURE |
| Lexmoto lxr | 125 | 2024 | NO WAY |
| Suzuki GSXs 125 | 125 | 2024 | IN FUTURE |
| mash fifty | 50 | 2024 | CAN BE TUNED |
| Um xtreet rs 125 | 125cc | 2024 | RESEARCHING |
| Kymco | 125 | 2024 | RESEARCHING |
| Lexmoto matador | 125 | 2015 | RESEARCHING |
| voge R | 125 | 2025 | NO WAY |
| Sinnis terrain | 125 | 2021 | IN FUTURE |
| Lexmoto lxr | 125 | 2025 | NO WAY |
| yamaha | 125 | 2017 | IN FUTURE |
| Lexmoto lxr | 125 | 2020 | CAN BE TUNED |
| honda CB125R | 125 | 2025 | RESEARCHING |
| suzuki burgman | 125cc | 2017 | IN FUTURE |
| Benda rock | 125 | 2025 | RESEARCHING |
| apache | 125 | 2021 | CAN BE TUNED |
| Yamaha YZF-R 125 2008-13 Electronic Fuel Injection EFI ECU Black Box Module CDI | 125 | 2011 | IN FUTURE |
| Honda cub | 125 | 2022 | IN FUTURE |
| Bluroc | 125 | 2023 | CAN BE TUNED |
| Burnout easycruiser | 125 | 2018 | RESEARCHING |
| Sinnis spirit | 125 | 2015 | RESEARCHING |
| Suzuki gsxr | 125 | 2019 | IN FUTURE |
| Zontes | 125 | 2025 | RESEARCHING |
| Swm | 125 | 2025 | RESEARCHING |
| honda cbr150r | 150 | 2022 | IN FUTURE |
| Royal alloy | 125 | 2019 | CAN BE TUNED |
| Yamaha R125 | 125 | 2025 | RESEARCHING |
| Mutt mastiff | 125 | 2021 | RESEARCHING |
| Keeway fact x 125cc | 125cc | 2024 | CAN BE TUNED |
| Honda cb125f | 135cc | 2018 | IN FUTURE |
| Mutt | 125 | 2019 | CAN BE TUNED |
| bluroc | 125 | 2024 | RESEARCHING |
| Yamaha yzf-R125 | 125cc | 2025 | IN FUTURE |
| Lexmoto assault E5 | 125 | 2023 | CAN BE TUNED |
| zontes | 125 | 2023 | IN FUTURE |
| suzuki gsxr | 125 | 2019 | IN FUTURE |
| Lexmoto michigan | 125cc | 2022 | CAN BE TUNED |
| VogeR125 | 125 | 2025 | NO WAY |
| Yamaha r125 | 125 | 2025 | IN FUTURE |
| Lexmoto adrenaline | 125 | 2017 | RESEARCHING |
| Suzuki gsxr | 125 | 2020 | IN FUTURE |
| Ktm smc r 125 | 125 | 2025 | IN FUTURE |
| Honda Varadero | 125 | 2009 | IN FUTURE |
| voge125r | 125cc | 2025 | NO WAY |
| Sinnis Terrain ZS-186 | 150cc (aftermarket) | 2021 (euro 4) | CAN BE TUNED |
| Yzf-r | 125 | 2019 | IN FUTURE |
| Mitt 125 gp1 | 125 | 2018 | CAN BE TUNED |
| suzuki gsx-s125 | 124cc | 2019 | IN FUTURE |
| yamaha xsr125 | 125cc | 2025 | RESEARCHING |
| Lexmoto lxs euro 5.5 | 125 | 2025 | NO WAY |
| lexmoto carreara | 125 | 2025 | RESEARCHING |
| Honda cb125f | 125cc | 2018 | IN FUTURE |
| Kawasaki Ninja | 125 | 2024 | IN FUTURE |
| Barton Blade R 125 | 125 | 2021 | CAN BE TUNED |
| voge125r | 125cc | 2025 | NO WAY |
| Honda Forza | 125 | 2022 | IN FUTURE |
| Zipp pro xt1250 | 125 | 2019 | CAN BE TUNED |
| bluroc hero | 125 | 2025 | CAN BE TUNED |
| Morbidelli | 125 | 2025 | RESEARCHING |
| Mt | 125 | 2023 | IN FUTURE |
| Zontes | 125 | 2022 | CAN BE TUNED |
| Keeway v cruise | 125 | 2024 | CAN BE TUNED |
| Zipp manic | 125 | 2015 | RESEARCHING |
| Kimco zing | 125 | 2000 | NO WAY |
| Junak RAW 125 | 125 | 2024 | RESEARCHING |
| Hyosung Aquila GV | 125 | 2004 | NO WAY |
| Voge r125 | 125 | 2024 | NO WAY |
| Tr125 gp2 | 125 | 2021 | CAN BE TUNED |
| Honda cbr jc39 | 125 | 2008 | IN FUTURE |
| Ktm duke | 125 | 2019 | IN FUTURE |
| Aprilia rs4 125 | 125 | 2020 | IN FUTURE |
| Qjmotor srt125dx | 125 | 2026 | RESEARCHING |
| Mondial HPS | 125 aprilia RS4 | 2018 | NO WAY |
| Qj Motor SRV125 | 125 | 2024 | NO WAY |
| Keeway x-light | 125 | 2024 | CAN BE TUNED |
| Romet Z One R | 125 | 2017 | CAN BE TUNED |
| Junak Racer | 125 | 2025 | NO WAY |
| Yamaha mt | 125 | 2024 | IN FUTURE |
| Benda avenger | 125 | 2025 | RESEARCHING |
| Lexmoto Milano | 125 | 2020 | RESEARCHING |
| Suzuki burgman uh125 abs | 125 | 2019 | IN FUTURE |
| Yamaha mt 125 | 125 | 2015 | IN FUTURE |
| Hanway SC Furious | 125cc | 2021 | CAN BE TUNED |
| Honda cbr125r | 125 | 2017 | IN FUTURE |
| Honda CB125R | 125cc | 2018 | IN FUTURE |
| Honda | 125 | 2025 | RESEARCHING |
| Lexmoto lxr euro 5 | 125cc | 2021 | CAN BE TUNED |
| Yamaha yzf r | 150cc | 2009 | IN FUTURE |
| benda rock | 125 | 2024 | IN FUTURE |
| Royal alloy gt | 125 | 2024 | CAN BE TUNED |
| Lexmoto Michigan | 125 | 2023 | CAN BE TUNED |
| Zontes zt125u1 | 125 | 2021 | RESEARCHING |
| lexmoto Adrenaline | 125 | 2018 | CAN BE TUNED |
| Benelli bn | 125cc | 2025 | RESEARCHING |
| Benelli bn125 | 125 | 2022 | CAN BE TUNED |
| Honda pcx | 125 | 2016 | IN FUTURE |
| CB125R | 125 | 2021 | IN FUTURE |
| Gszr125 | 125 | 2021 | IN FUTURE |
| Honda cbf125 2009 | 125 | 2009 | IN FUTURE |
| sinnis apachi 125 sm | 125cc | 2017 | NO WAY |
| Mutt Mastiff | 125 | 2023 | IN FUTURE |
| Keeway V Cruise | 125 | 2025 | CAN BE TUNED |
| Honda cb125r 2020 jc79 | 125 | 2020 | IN FUTURE |
| Keeway dual plug Delphi ecu | any | any | CAN BE TUNED |
| Keeway v cruise | 125 | 24 | CAN BE TUNED |
| Junak if delphi ecu mt05 | any | any | CAN BE TUNED |
| Junak RX-ONE | 125 | any | CAN BE TUNED |
| Zontes | 125 | 2021 | CAN BE TUNED |
| Honda CT125 hunter cub. Thai import | 125 | 2021 | IN FUTURE |
| Gsxr | 125 | 2022 | IN FUTURE |
| Honda ct | 125 | 2023 | IN FUTURE |
| Sinnis Terrain 125 | 125 | 2021 | CAN BE TUNED |
| Honda CT125 Trail cub | 124cc | 2020 Japenese import | IN FUTURE |
| Zontes g1 | 125cc | 2025 | CAN BE TUNED |
| Lexmoto carrera | 125 | 2025 | RESEARCHING |
| Zongshen | any | if dual plug delphi ecu then YES | CAN BE TUNED |
| MH tray | 125 | 2025 | NO WAY |
| Fb mondeil smx | 124 cc | 2023 | IN FUTURE |
| Yamaha ray zr | 125 | 2023 | IN FUTURE |
| Lexmoto FMR | 125 | 2018 | NO WAY |
| CB125F | 125 | 2016 | IN FUTURE |
| Suzuki | Un 125 | 2023 | IN FUTURE |
| Wk demon | 125 | 2020 | IN FUTURE |
| Lexmoto lxr se | 124cc | 2024 | NO WAY |
| Zontes | 125 | 2021 | CAN BE TUNED |
| Benelli tnt135 | 135cc | 2021 | CAN BE TUNED |
| Lexmoto lxs | 125 | 2024 | NO WAY |
| Lexmoto adrenaline | 125 | 2018 | CAN BE TUNED |
| Yamaha YZFR | 125 | 2025 | IN FUTURE |
| Kawasaki ninja | 125 | 2021 | IN FUTURE |
| Hunk 125r | 125cc | 2026 | IN FUTURE |
| Sinnis shuttle | 125cc | 2022 | CAN BE TUNED |
| Yzfr | 125 | 2032 | IN FUTURE |
| Yamaha mt 125 | 125 | 2020 | IN FUTURE |
| kymco | 125 | 2022 | IN FUTURE |
| Ktm smc r | 125 | 2025 | IN FUTURE |
| Sherco SM-RS 125 4T | 125 | 2025 | NO WAY |
| Yamaha wr | 125cc | 2014 | IN FUTURE |
| Ktm | Duke | 2014 | IN FUTURE |
| Lexmoto single plug | 125 | 2023 till today | NO WAY |
| Honda cb125f | 125cc | 2021 | IN FUTURE |
| Lexmoto Venom | 200 | if ECU delphi MT05.2/3 | CAN BE TUNED |
| Benelli bn125 | 125 | 2020 | CAN BE TUNED |
| Honda cbf | 125 | 2013 | IN FUTURE |
| Suzuki gsxr | 125 | 2019 | IN FUTURE |
| Sinnis terrain | 125 | 2019 | CAN BE TUNED |
| Yamaha YS125 | 125 | 2017 | IN FUTURE |
| Sym jet x 14 | 125cc | 2023 | NO WAY |
| yamaha yzf-r | 125 | 2010 | IN FUTURE |
| Lexmoto lxr | 125 | 2020 | CAN BE TUNED |
| Lexmoto michigan | 125 | 2018 | CAN BE TUNED |
| Mt125 | 125 | 2024 | IN FUTURE |
| Suzuki gsxs | 125 | 2024 | IN FUTURE |
| Any bike | stock | ECU= Dephi MT05.3 dual plug | CAN BE TUNED |
| Any bike | Any engine size | ECU= Delphi MT05.2 | CAN BE TUNED |
| Zontes | any | bosch ecus | IN FUTURE |
Frequently Asked Questions
Is it safe for my engine?
Absolutely. Factory ECU maps are often restricted to meet strict Euro 4/Euro 5 emission regulations, making them run extremely lean. Our remaps optimize the Air/Fuel Ratio (AFR), resulting in a smoother, cooler, and more reliable running engine without pushing it past safe mechanical limits.
How much power will I gain?
Gains depend on the exact model. Typically, you can expect better throttle response, elimination of flat spots, a raised rev-limiter, and an overall increase in torque. Some heavily restricted bikes (like certain Lexmoto or Keeway models) see significant improvements in top speed and hill climbing.
Is this legal on a CBT license?
In the UK, a learner on a CBT is legally restricted to riding a motorcycle with a maximum power output of 11kW (14.8 bhp). If our remap pushes your specific bike over this limit, it is technically only legal for A2 license holders or for track/off-road use. You are also responsible for informing your insurance provider of any modifications.
What if I want to return to the stock map?
We keep backups of all original factory files. If you ever decide to sell the bike or need it reverted to its original state, simply post the ECU back to us and we can flash it back to stock for a small admin fee.
Real-World Example Results: Lexmoto LXR/LXS 125 2021(Euro 5)
The Scenario: A stock 2021 Lexmoto LXR 125 feels “restricted” by Euro 5 emissions, losing pull above 9,000 RPM and running lean (hot) after a performance exhaust upgrade.
The Transformation: By accessing the Delphi MT05.3 ECU, the following Stage 1 optimizations are achieved:
- Fueling (5k–11k RPM): Increased fuel delivery across the high-rev range. This eliminates the “lean” flat spots, resulting in a smoother, harder-pulling power band and a cooler-running engine.
- Ignition Timing: Adjusted Spark Advance for maximum efficiency. This sharpens throttle response and squeezes every bit of horsepower out of the 125cc combustion chamber.
- Rev Limiter: The electronic ceiling is raised from the factory limit to 11,000 RPM. This allows you to stay in the power band longer and achieve a higher top speed in 6th gear.
- Total Diagnostics: Beyond the power gains, you gain the ability to Read & Clear Fault Codes (CEL) and view Live Data, ending expensive trips to the dealership for simple resets.
The Verdict: The bike is transformed from a “restricted” commuter into a responsive machine that pulls cleanly all the way to the redline.
Types of ecus what can be remapped
Dual plug Delphi MT05/MT05.2/MT05.3 ecus
Single plug Bosch MSE 3.0/ MSE 6.0/ MSE 8.0
A lot of new bikes comes with this ecus what can not be remapped for now. This are Delphi MT05.3 Single plug euro 5 ecu
SHOP
2 responses to “125cc Remaps – unlock your bike full potential.”
-
Hi just checking if my Yamaha wr 125x
Can be remapped 2014
Thanks
Sean -
Hello. Thanks for question. It will be in future. Cheers
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