TRP and Classified launched the Vistar // Powershift groupset in June 2025, combining TRP’s precision groupset engineering with Classified’s Powershift Hub. The result is a wireless drivetrain system with up to 16 individually sequenced gears, activated through TRP’s CMD wireless protocol.
We built the mobile-side integration that makes it work: connecting TRP’s CMD shifters to the Classified Powershift Hub through the Classified companion app.
Two Hardware Ecosystems, One App
The Vistar // Powershift system brings together components from two different companies, each with their own wireless communication protocols. TRP’s CMD system handles communication between shifters, derailleurs, the Powershift Hub, and accessories. Classified’s hub has its own BLE protocol that the app already speaks.
Our challenge was to make the app aware of TRP CMD shifters without requiring a direct BLE connection to them. Like the Shimano DI2 integration, the TRP CMD shifter is a “virtual device” in the app. The rider pairs and configures it through the Classified hub, and the CMD protocol handles the rest on the bike. The architecture we built for DI2 paid off here. A new hardware partner slotted into the existing device management, bike profiles, and pairing flows without restructuring the app.
What QuantumShift Means for the App
The standout feature of Vistar // Powershift is QuantumShift: the system coordinates the Powershift Hub gear change with the rear derailleur to deliver 15 or 16 distinct gears in a logical sequence. Riders shift up or down, and the system decides whether to move the rear derailleur, the hub, or both simultaneously.
From the app’s perspective, this introduced a configuration layer that didn’t exist before. Existing Classified shifter settings let riders assign buttons and toggle shift direction. QuantumShift adds a fundamentally different choice: should the system manage gear sequencing automatically, or should the rider control all 24 combinations manually? We had to present these modes in a way that made the trade-off clear without overwhelming riders who just want to set it and forget it.
What Made This Integration Different
The DI2 integration was technically harder. The D-Fly protocol, internet-dependent registration, and multi-step authentication flow were new territory. The TRP CMD integration was a different kind of challenge: making two companies’ hardware feel like one unified system in the app.
The CMD protocol handles its own wireless communication between TRP components. Our job wasn’t to implement that protocol on the mobile side. It was to build the configuration UI that lets riders set up their Vistar system through the Classified app, write QuantumShift preferences to the hub via BLE, and make the TRP shifter appear as a first-class device in the bike profile alongside Classified’s own hardware.
The result: a rider with a Vistar // Powershift groupset manages everything from one app. The same app that handles their Classified ringshifter on another bike also handles TRP CMD configuration on their Vistar setup.
Eurobike Award Winner
The Vistar // Powershift groupset won a 2024 Eurobike Award and is now shipping to riders and dealers worldwide. The app integration is available as a free update on iOS and Android.