With the Bosch-based Xduro line, Haibike is already a major player in the motorized mountain bike business. The German manufacturer remains true to its pioneering role as, following a carbon E-Fully, it is now presenting twelve brand new e-mountainbikes in the Sduro series, which feature the Yamaha drive system on board.

Further rounding off the broad portfolio
With the well-known Xduro line, the Haibike portfolio is already very broadly positioned to provide customers with a Bosch motor for built-in tailwind. With the new Sduro series, Haibike is launching the Yamaha motor - currently best known from Giant's e-mountain bikes - and positioning these equipped vehicles below the Xduro bikes in terms of price. "An increasingly differentiated market requires the range to be rounded down in order to offer attractive new target groups in a region that is within their reach in terms of price, without having to compromise on performance," says Susanne Puello, Managing Director of the Winora Group. In terms of price, the starting point for the cheapest Sduro e-bike in the eurozone is set at €1,999.

High off-road capability
All Sduros from Haibike use the Yamaha mid-motor with a maximum torque of 70 Nm, which supports the rider from the very first turn of the crank. The so-called zero-cadence support is mentioned as an advantage on difficult, slow sections. The option of using two chainrings on the front crankset increases the off-road capability and also offers a clear differentiation from the Bosch system. "The double crankset is a big step forward in the e-bike sector in terms of gear range and shifting comfort," says Ingo Beutner, Senior R&D Engineer at the Lower Franconian bicycle manufacturer. "Previously, the gear range was around 327 percent, but this has now been increased to 455 percent."

Sophisticated shape for mounting the mid-engine
Further off-road capability is provided by a removable and replaceable impact guard, which protects the engine housing in rough terrain in the event of ground contact. Haibike has developed a new bridge for the fusion of frame and motor and, as with the Xduro, the Haibike engineers have used a casting process from motorcycle chassis construction: the so-called gravity casting process. In this process, negative molds made of pressed sand are stored in large molds, which are pivoted in precisely calculated axes after being poured with the aluminum-zinc alloy. Earth gravity is used to achieve a uniform wall thickness of the cast part. After cooling, all components are individually checked for any inclusions or defects using X-rays. The resulting components should not only be lightweight but also extremely stable.

Fits even small frames
The Yamaha Li-ion battery integrated into the frame has a capacity of 400Wh. The battery can be charged, locked or removed directly from the Sduro bikes. Thanks to the side removal, the battery can also be used in the smallest frame sizes, such as the 35cm hardtail and 40cm fully. The entire Yamaha drive system weighs in at around 6.4 kilos.
The rider has everything in view thanks to the removable, centrally positioned display. Thanks to an innovative holder system, the display position can be ideally adapted to the rider's needs via two axes. Permanent backlighting ensures legibility even in changing light conditions. The remote controller allows the rider to control all system functions from the handlebar: 4 riding modes, total and daily kilometers, clock and riding time, maximum, current and average speed

The top-of-the-range version
The newly launched Yamaha range at Haibike comprises a total of 14 models, and Ride is presenting one model as a representative example, the top-of-the-range version with all the features that the mountain bike market has to offer these days. On the Sduro Allmtn Pro model, not only is the drive powered, but the rear suspension is also electronically operated by the e:i shock system. The system is not powered by its own battery, but uses sensors and energy from the Yamaha drive unit. This is the first time that the intelligent shock absorber has been successfully integrated into the existing e-bike technology. Depending on the terrain, the damper position varies accordingly, with special sensors in the Yamaha system constantly recording speed and cadence.

The electronic suspension control system distinguishes between four modes: In Automatic mode, the damper constantly readjusts to the terrain requirements as described. Open means a fully active damper and unlimited off-road use. In Locked mode, the damper is locked and Medium stands for the compromise between an open and closed damper.

The top model is completed by the hydraulic disc brakes and the 20-speed gears from Shimano or the Hans Dampf tires from Schwalbe in the 650b size. As is familiar from Haibike, the frame is characterized by the eye-catching, double-bent top tube and the compact proportions.

www.haibike.de