Wilier Triestina CENTO1HY ULTEGRA DI2 AIR38 HYBRID

One of the most important aspects for us was to achieve a record weight: we have succeeded in creating a racing bike with pedal assistance that weighs less than 12 kg. A lightweight monocoque carbon frame, high-quality mechanical components and an Ebikemotion servo-assistance system, with a total weight (motor, battery and controls) of 3.7 KG, the lightest solution on the market.

Wilier's Ebikemotion division has partnered with automotive technology supply leader Mahle to develop and manufacture some of the lightest and best integrated pedal assist systems on the market.

The X35+ PAS includes a series of components that integrate seamlessly into the latest racing bikes. Weighing just 3.5 kg overall (motor, battery, cables and controller), it’s one of the lightest PAS on the market. Our X35+ version uses the ANT+ communication protocol to connect to the most advanced cyclocomputers on the market.

The drive motor is installed in the rear wheel hub, engaging assistance fluidly and silently. When you stop pedalling, or your speed exceeds 25 km/h, power output stops with no sensation of braking friction.

40 Nm torque is perfect for road or light gravel use. This well-balanced power helps better manage battery life on faster and more competitive routes. The sensation when assistance engages is similar to when someone gives the bike a push on a hill or in a standing start.

Modest capacity perfect for lightweight pedal-assist bikes like our Hybrid series. The battery is small for easy containment inside the down tube. The system's total capacity gives you peace of mind for outings with major altitude differences.

Extra battery life expands your pedalling horizons. Battery capacity increases power delivery time by about 80%. The additional battery can be attached to the seat tube using the rivets for the second water bottle holder.

The system uses ANT+ to dialogue with third-party devices. This provides all kinds of additional information that can be displayed on the latest cyclocomputers, such as Garmin and Polar.

The truly lightweight motor’s maximal 250 W of power boosts pedalling effectiveness. The motor engages following the power delivery curve based on how you use the bike. Cadence triggers fluid and effective power with no feeling of resistance.

The motor is positioned inside the hub of the rear wheel so the lower bracket can be sized like that of a regular bicycle. This lets you install standard chainsets. This solution maintains the pedalling sensation of a traditional bicycle.