TSP ECU Reflash Module (ERM) – Suits Sherco 300 SE Racing and Factory Models 2018-2025 Sale
Description
This package will transform the power delivery of your Sherco 300, it will suit the following models:
Sherco 300 SE Factory Models 2018-2024
Sherco 300 SE Racing Models 2019-2024
2025 Models will require an additional harness which is available in November 2024. When this is available the listing will update to suit 2025 models.
The kit includes the following:
- A new 2 piece TSP Billet machined cylinder head with a replaceable combustion chamber insert in Low, Medium, or High Comp. See below for more detailed explanations of each compression ratio.
- A Handheld touchscreen ERM device which comes with a free downloadable TSP ECU Tune to suit your bike & relevant TSP modifications (For a full breakdown of this product CLICK HERE)
- A ERM wiring harness with wired in relay to power the ERM unit
- A new NGK spark plug, better suited to the improved power the engine makes with this kit
- A new carby needle which provides much better fueling at part throttle than any of the needles in the stock spares kit. We will also provide a starting guide for the main jet and pilot jet. The original spares kit should contain the necessary main and pilot jets required to jet your bike to suit the TSP Power Kit. If you don’t have the original jet kit and need main and pilot jets then just ask and we can add them to your order.
- Much more torque at low mid revs, where you need it most.
- Drastically improved 0-1 2 throttle performance.
- 2 ignition maps: hard and soft. The stock map switch works like normal to select between the customised maps.
- Much smoother, crisper power deliver which is easier to get to the ground.
- Much less ‘pipe bang’… this is the annoying “dang, dang, dang” noise the engine makes on deceleration. Its generally harmless but very annoying and makes some stock bikes unpleasant to ride at times.
- Better throttle response.
- Better fuel economy.
- More peak power and overrev.
- You can ride in a higher gear with lower revs in many situations and use the extra low end torque to get you places with less wheel spin and much less clutch work.
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- Map 1 & 2 Fuel Maps (EFI models only)
- Map 1 & 2 Ignition Maps
- Map 1 & 2 oil Maps (Oil injected models only)
- Map 1 and 2 Power valve Maps (TBI & Sherco Carby Models only)
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Each profile can also be individually named for future reference. For example, if you create a rich map for a deep sand track you can save it as “Sand Track” and reload it at any time as required.A secondary screen shows more in depth data, ideal for workshop use.
Read and Clear DTC’s Fault CodesOur ERM is also a smart service tool which can read and clear fault codes, enable throttle position sensor adjustments and check temperatures with a range of exiting additional planned features.
Data loggingThe ERM also allows data logging using a third party app. Just connect the ERM to your mobile device via wifi and stream data live to your phone, or data log so it can be reviewed later. This is particularly helpful when tuning and also provides a fascinating insight into how your engine is performing even for novice users.
ERM WebsiteOur ERM website gives users all the tools they need to keep their ERM up to date, including Tuned Maps, ERM firmware updates, ERM Manager software updates plus instructions and videos. The website also allows the user to upload copies of their original map and saved profiles so they can be kept safe and accessed again for future use if needed. Users can also purchase paid activations like Pro and Pro+ mode to enable the ERM tuning features.
ERM Manager Software
Our ERM Manager software is a powerful tool which allows you to communicate with your ERM. You can save a backup of your Original Map, upload TSP Tuned Maps, view profile settings, backup profiles, save diagnostic files and much more. This custom software is currently available for Windows PC’s.
Future updates and accessories
We have a range of exciting updates planned for the future which are going to make the ERM the world standard in 2 stroke tuning and diagnostic tools. These include accessories, features and knowledge that will be unique to the ERM and allow ERM users to be in control of their engine in a way that’s never been offered before.
Pricing for Pro, Pro+ And additional features on www.tsp-erm.com
Minimum ERM operating specifications:
Windows
* Windows 10 (64-bit) or newer
* Wifi network interface
* RAM: 2 GB or higher
* HDD: 100 MB of available disk spaceMacOS
* MacOS Big Sur (version 11) or newer
* Wifi network interface
* RAM: 2GB or higher
* HDD: 300MB of available disk space
* Supports both Intel and ARM64Our new ERM truly is “tuning redefined”
Additional Information
TSP ERM Sherco Models ERM Sherco SE 300 Factory / Racing 2018-2025, Harness Adapter Wire 2018-2024, Harness Apater Wire 2025- (Available Nov.2025), Sherco Power Kit ( ERM , Spark , Cylinder Head , Idle )
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This package has been tested and raced by some of the best riders in the world and the feedback has been excellent. Everyone from factory level riders to weekend trail riders have reported a significant increase in performance and rideability.
There is no change to reliability with this setup… the ignition maps, air fuel ratios and combustion chamber designs are similar to those we have run very successfully for years on modified carb models, as a result we know exactly what it can or cant handle in terms of performance mods.
Combustion chamber designs:
LOW COMPRESSION – This head was designed to suit extreme enduro riding or for riders who are more interested in smoothness over power gain. It offers stronger bottom end torque than stock with a very smooth delivery that wont break traction too easily. It enables the rider to use lower revs and less clutch when tackling hard obstacles. The low comp design also offers maximum resistance to overheating in tough situations.
MEDIUM COMPRESSION – This head suits the majority of trail riders and racers who want better bottom and mid power and a gain up top as well. The power delivery is much stronger and more tractable than stock and suits a wide range of riding conditions. Suited to 95 or 98 RON fuel (approx 89 or 91 in the USA).
HIGH COMPRESSION – This head suits riders who want harder hitting power everywhere, especially down low, and are happy to sacrifice some overrev to achieve this. It completely transforms the bike into a weapon, but can be a handful in some situations at sea level. It can also be used at higher elevation (above 1000m) to achieve a similar power delivery to the medium compression head at sea level. Must use with 98 RON fuel at sea level (approx 91 in the USA). We don’t recommend using this design for extreme enduro due to the increased tendency to overheat in very tight, technical riding near sea level, or for high revving applications like desert racing or supermoto… best to use the low or med designs for those applications.
Each profile allows adjustment of parameters:
This package makes a huge difference to the Sherco 300 and offers the following gains over a stock bike:
