10 km/h faster without changing the Vespa GTS engine?
SPEEDWHEEL - Ingenious tuning part for more top speed from KÜBLER RACING for Vespa GTS HPE 300 models (from 2019)
10 km/h higher top speed with your Vespa GTS 300 without changing the engine? With the modified
SPEEDWHEEL tone wheel from
Kübler Racing, this is
easily possible. The tone wheel is a slotted steel disk on the rear wheel. It is used to determine the wheel speed for the ASR/ABS control.
- Plus 10 km/h top speed
- No intervention in the engine necessary
- Easy to retrofit
- Not visible from the outside
- No increased wear
+10 km/h Vmax order here
SPEED
LIMITER
Although the Vespa GTS HPE has more power at the rear wheel than its predecessors, the top speed unfortunately does not benefit from this due to the early onset of the speed limiter. One of the reasons for this is that the speedometer display is a little too fast. At a real 120 km/h, the speedometer already shows 130 km/h. However, the on-board electronics consistently reduce the speed above 130 km/h.
FINAL SPEED
This is precisely where the new tone wheel from Kübler Racing comes in. What sounds like magic at first is ultimately simple physics. The new tone wheel has a modified geometry, which means that the exact, real speed is now transmitted to the control electronics.
The 130 km/h displayed are now also the real 130 km/h on the road. The rev limiter therefore also engages a full 10 km/h later, although the speedometer shows the same speed as before the conversion (130 km/h). Ideally, the
higher top speed can be confirmed by a comparison using a GPS speed measurement (e.g. via cell phone) before and after the conversion. In the performance diagram below, you can see the difference between the speed limiter before and after the conversion:
INSTALLATION & ASR RECALIBRATION
For the conversion, the exhaust and the swing arm on the right-hand side of the vehicle (in the direction of travel) are removed. After simply replacing the tone wheel (bolted to the rear wheel rim / using 5 pcs. M6x20 hexagon socket screws), only the
ASR system is
recalibrated, that's all.
Assembly instructions The ASR recalibration can be carried out using our
instructions easily done by yourself.
Order your Speedwheel here
DE | €
