Bosch Performance Upgrade 2.0: Racing an Italian e-MTB Enduro

Jennifer Miller · 2026-06-10

Bosch just dropped the Performance Upgrade 2.0 for the CX and CXR Gen 5 motors. It's a free download for anyone with a Bosch-powered e-bike. So we updated our bike and headed to Bike Festival Riva on Lake Garda to test the new features and race the Bosch eMTB Challenge. ### What Is the Bosch eMTB Challenge? The Bosch eMTB Challenge is an e-bike enduro with six stages (seven for pros). It's a blind race, meaning you don't get to pre-ride the stages. You show up, get a map, and go. That's part of the thrill. ### The Upgrade: What Changed? Performance Upgrade 2.0 tweaks the motor's power delivery. It's not a horsepower boost but a smarter response. The motor now reacts faster to pedal input, giving you more torque when you need it. Climbing steep, rocky sections felt smoother. The assistance felt more natural, like an extension of your legs. - Faster torque response - Smoother power delivery on climbs - Better battery efficiency on technical trails ### Racing Blind: The Real Test Racing blind on an e-bike is different. You rely on the bike's handling and your instincts. The first stage was a steep, loose climb. The motor's new response kept me moving without spinning the rear wheel. That's a big win. The second stage was a fast, flowy descent. Here, the upgrade didn't change much. But the motor's smoother engagement meant I could focus on line choice, not fighting the power. ### The Experience at Lake Garda Lake Garda is stunning. The trails wind through olive groves and rocky outcrops. The weather was warm, around 75 degrees Fahrenheit. The event was well-organized, with mechanics on hand for last-minute adjustments. > "The best part was the blind racing. It forces you to read the trail and trust your bike." — A fellow racer ### Should You Download the Upgrade? Yes. It's free, and it improves the riding experience. The changes are subtle but noticeable. If you race or ride technical terrain, you'll appreciate the smoother power delivery. ### Final Thoughts Bosch's Performance Upgrade 2.0 isn't a game-changer, but it's a solid improvement. The Bosch eMTB Challenge was a blast. Blind racing on an e-bike is a unique challenge. If you get the chance, try it. Just remember to download the upgrade first.