Choosing the right groupset for my Bianchi Oltre wasn’t an easy decision. The bike is designed for speed, with an aerodynamic look like something straight out of a sci-fi movie. Still, I wanted to keep the weight in check. After years of riding Campagnolo and testing all of SRAM’s latest innovations, I decided to go back to the brand from my pro days and finally give Shimano’s Dura-Ace Di2 R9200 a try. Combined with the DT Swiss Arc 1100 60/80 wheels, the bike weighs a feather-light 7 kg – not bad for an aero bike.
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Shifting: Fast and Precise, Even Under Load
The Dura-Ace Di2 R9200 shifting system impresses across the board. Whether in a sprint or on long, fast sections, the system reacts lightning-fast and precisely – even under load. Gear changes are smooth and quick. I opted for the 52×36 chainrings with an 11-34 cassette to ensure maximum power. I even considered the 54×40 option, but living in the Ahr Valley, even my aero bike needs to be ready for hills. Whether I’m maintaining the pace or dropping the younger guys from the cycling club before the next climb – the gearing is spot-on.
The STI levers on the Dura-Ace Di2 R9200 are a clear improvement over previous models. The redesigned buttons are easier to reach and distinguish from each other. The longer lever throw also allows for finer modulation of braking power. The ergonomics of the levers have improved noticeably. The grips feel perfect in hand, whether riding on the tops or drops, and provide a firm and comfortable hold – whether I’m giving it my all in a sprint or cruising on long rides.
Braking: Powerful and Quiet
The wider brake pad clearance has finally solved the annoying disc brake rubbing issue. The brakes grab precisely without requiring much hand force. Especially at high speeds, the modulation is impressive. No squeaking, no rubbing – just consistent, powerful braking performance. On descents through the winding roads of the Eifel region, where I like to push the pace, the brakes stay quiet and controlled, even when things get intense.
Semi-Wireless: Easy to Get Used to, But Keep an Eye on the Battery
The semi-wireless system of the Dura-Ace Di2 R9200 took some getting used to at first. I’ve always liked SRAM’s fully wireless solution – it looks cleaner. But I got used to Shimano’s semi-wireless setup faster than I thought, and after a while, you don’t even think about the differences. The shifting remains lightning-fast and precise, and the cockpit stays just as tidy.
The only catch: Don’t forget to charge it. With SRAM, I was used to just packing a spare battery in my jersey pocket. Worst case, I could swap the front derailleur battery with the rear derailleur to keep the ride going if the charge was running low. With Shimano, that’s not an option. If the battery dies, you’re stuck. So, you need to keep an eye on the battery level, especially before longer rides.
Conclusion – The Choice of the Pros
The Dura-Ace Di2 R9200 impresses with precise shifting, powerful braking, and noticeably improved handling. The performance is consistently strong. The battery lasts a long time and charges quickly, but you still need to keep an eye on it because there’s no quick fix on the road. Shimano delivers just as I remember from my pro days – and it’s clear why most of the pro peloton relies on this groupset.
