Anyone who has the pleasure of talking to Lutz Scheffer about mountain bikes has a good chance of quickly finding themselves open-mouthed. The veteran developer (previously at Canyon for many years) has many visions, clear views and always the right facts at the ready - fuelled by an impressive list of measured values and performance data. Born in the Black Forest, he joined Rotwild in 2017 and has been tinkering with the RX 750 project ever since. The result is a bike that goes its own way in many respects.
But first the key data: The RX 750 relies on a full carbon frame and a wheel mix of 29-inch wheels at the front and 27.5 Plus at the rear. The suspension provides 150 millimetres of travel at the front and rear. With the new Brose Drive S Mag, the most balanced motor currently on the market provides propulsion support. In addition, there is a specially developed 750 watt-hour battery. As with current Rotwild bikes, the support levels can be fine-tuned using an app.
The special features of the bike lie in the details. For example, the handlebar/stem unit was specially developed to route the power cable from the remote lever to the motor internally, protected and out of sight. The cable is routed under the grip into the handlebars and from there into the frame via the stem. The Eightpins telescopic support focusses on the topic of integration. The seat tube serves as an outer shell, so to speak, and the hub utilises the entire area from the edge of the seat tube to the desired seat height. It almost goes without saying that the speed sensor is also integrated at the dropout, while the magnet is protected on the brake disc.
The specially developed battery is located in the down tube and can be removed quickly and easily. At first glance, the integration looks like all other bikes with an Intube battery. However, Rotwild has implemented an additional round carbon profile in the U-shaped down tube to increase rigidity. The profile also serves as a cable duct. Compared to some other batteries with more than 700 watt hours, the Rotwild version is compact and - in relation to its capacity - quite light.
As usual with Rotwild, the RX 750 only enters the upper price category. There will be the usual three model variants Core, Pro and Ultra, all of which rely on a full carbon frame, Brose Drive S Mag and 750cc battery. However, detailed information is only available on the top model, the RX 750 Ultra, of which we have already been able to test a near-production prototype.
The elegant Rotwild RX 750 Ultra will cost 9999 euros. It comes with high-quality Fox Factory suspension, carbon wheels from DT Swiss and Shimano XTR brakes with four brake pistons. The gearing also comes from the top Shimano shelf: the new 12-speed XTR. The bikes should be available from September.
We were able to ride the Rotwild RX 750 Ultra extensively over trails and subject it to our test procedure in the EMTB lab. The complete test, the exact geometry data and all the information can be found as a PDF in the download area below.

Editor CvD