ULEB

The Ultra Low Emission Bike is a joint development by GET Gas Engine Technology BV and htm-moto. The decisive factor in the development of the Ultra Low Emission Bike was the fact that the number of new registrations for motorcycles continues to increase each year, whereas the demands regarding the "purity" of exhaust emissions of these motorcycles remain at a disproportional low level.

The main condition for achieving the EURO-4 standard for motorcycles is the application of sophisticated emission technology, consisting of the following separate components:
 - heated and controlled three way catalytic converter
 - electronically controlled secondary-air injection system
 - electronic engine management system (EMS)
 - heated lambda sensors for each cylinder with cylinder individual
   mixture control

Development of the Ultra Low Emission Bike is based on a Moto Guzzi V11 with an air cooled two cylinder four stroke engine (90°-V), a longitudinal crankshaft and two overhead valves per cylinder. Engine performance of the original engine: 67 kW (91 PS).

The following measurements were taken:
 - ECE-40 City Cycle
 - EUDC Extra Urban Driving Cycle
 - ADAC Highway Cycle
 - MVEG (including cold start) Passenger car-test Cycle
 - WMTC New World Motorcycle

In December of 2000, after three years of development, we reached an important milestone: the EURO-3 standard.

Only one year later, in December of 2001, we reached our final goal, the EURO-4 standard, even under the much more severe conditions of the WMTC-driving cycle.

Riding characteristics and fuel consumption
The Ultra Low Emission Bike was tested by drivers of two leading motorcycle magazines, Das Motorrad, Moto73 and Tourenfahrer, who judged the riding characteristics to be "very good".

Fuel consumption has been reduced significantly:

Comparison of WMTC- and MVEG driving cycles

- the high speed phase in the WMTC cycle is considerably longer
  (approx. 400 sec between 100 km/h and 120 km/h)
- the MVEG cycle contains more idle phases
- the WMTC cycle contains more acceleration phases
- WMTC is significant more dynamic
- WMTC-operation requires more throttle opening
- cold start emissions are "diluted" in the WMTC cycle due to the longer
  period of measurement