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Based on knowledge from the World Tour peloton, we developed the fastest wheelset for real-world conditions, using an integrated approach by taking into account the complete system including wheels, tires, bike, and rider. The intense partnership and development process resulted in a wheelset bringing up to 8% reduction in drag and 3.5-watt reduction in rolling resistance. Applied to a Grand Tour time trial of 30 km this results in a half a minute time win. For a full triathlon (180km) this will add up to a saving of almost three minutes.
Real world data
As a baseline for the development of the Scope Time Trial and Triathlon platform we made use of the “TT Real World Data”. The data of this research was conducted over 25 valuable time trials from the World Tour at the Grand Tours and World Tour races. From this study we were able to conclude, among other things, what the most common wind speeds and incoming wind agles are at which the wheel must therefore perform best.
Derived from the study, the following conclusions have been our main development parameters.
- The importance of aerodynamics in relation to rolling resistance.
- The most common wind speed.
- The Distribution of the incoming wind angles.
Rolling resistance vs aerodynamics
As a next step, together with our development partner Schwalbe we investigated the effect of wider tubeless tires versus aerodynamics. It was concluded that a 28 mm tubeless tire provided a significant reduction in rolling resistance compared to a 25 mm tire and allowed it to ride at a lower tire pressure providing additional comfort and grip.
However, since the aerodynamic penalty increases exponential when the speed increases, and at the same time, the front wheel encounters non-disturbed wind flows whereas the rear wheel is already disturbed by front wheel, bike and rider, our studies concluded that for the front wheel a 25 mm, and for the rear wheel a 28 mm tubeless tire provides the optimal set up.
