Nearly all modern superbikes and scooters contain electronic speed limiters, or vmax aufhebungen, capping top speed from 124-155 mph even for extremely powerful litre bikes. While necessary for public roads, experienced riders can benefit from disabling them. This article provides a step-by-step walkthrough to legally remove your bike’s speed limiter yourself using tuning software.
What Exactly is a Speed Limiter?
Essentially, vmax aufhebungen refer to parameter settings within the bike’s ECU (engine control unit) computer that artificially restrict velocity regardless of available power. For safety and regulations, manufacturers electronically prevent acceleration past a certain predetermined speed. Disabling this empowers accessing the engine’s true performance potential.
When Removing the Limiter is Acceptable:
There are exclusive conditions where disabling your bike’s speed governor proves useful:
- Closed Course Racing – Reveal absolute maximum speed capabilities
- High Speed Diagnostics – Assess components operating under full load
- Competition Top Speed Runs – Necessary for achieving peak velocity
- Smoother Gear Changes – Prevent abrupt deceleration near limiter thresholds
As long as not exceeding public road speed limits, removal remains street legal in most areas given bikes are only track ridden. Always verify regional laws first.
In order to properly remove speed limiters at home, you need:
- Performance Tuning Laptop with Data Cable Connection Kit
- Compatible ECU Flashing Software with Speed Parameter Edit Capability
- Ability to Access Bike’s ECU Connection Plug – Varies by model
With the right tuning tools, experienced owners can leverage custom software to erase factory speed caps.
Step-by-Step Vmax Aufhebung Removal Instructions:
Once laws verified and necessary tuning equipment secured, disabling your bike’s speed limiter follows this process:
- Gain Access to ECU Electrical Connection Plug
- Link Tuning Laptop to ECU via Tuning Cable
- Backup Stock Mapping Settings for Restoration as Necessary
- Adjust Target Top Speed Value to Maximum
- Write New Tuning File to ECU with Limiter Removed
- Clear All Engine Codes and Confirm Changes Took Effect
For street legality, no other performance parameters need adjustment. This merely removes the electronic speed ceiling to reveal true straight-line potential.
Before attempting to bypass your bike’s vmax governor, weigh:
- Permanently Damaging ECU if Tuning Interrupted
- Catastrophic Engine Failure Exceeding Safe Operation Limits
- Losing Engine Warranties Due to Detected Re-Flashing
- Stability Issues If Inexperienced Handling Unfamiliar Speeds
Without professional dyno tuning assistance, determining safe RPM thresholds at velocities far above legal limits takes very careful trial and error. Extensive tuning expertise is strongly recommended beforehand. Proper calculations ensure both street drivability and closed course top end capabilities.
While disabling factory speed limiters opens the door to tapping into maximum performance, the safest and most effective approach involves entrusting the task to experienced professionals at certified race shops equipped with precise tuning tools. These specialists possess the expertise to finely tune the Electronic Control Unit (ECU), optimizing the engine’s mapping to fully harness the unbridled straight-line power safely and reliably.
Before considering any modifications, it’s crucial to evaluate your riding proficiency diligently. Removing the Vmax governor is a task that demands skill and caution. DIY attempts should only be made by those well-versed in the intricacies of motorcycle mechanics and tuning.
However, when executed by skilled hands with meticulous care and the necessary safety measures, eliminating your bike’s speed limiter bestows exclusive access to the peak speed capabilities that your engine was truly engineered to achieve from the start. This enhancement not only unlocks thrilling performance but also elevates the overall riding experience to a level that truly resonates with the essence of your machine’s design and capabilities.