Red*2 is a great complement to the Cervlo R5 in this complete bike. It's the lightest complete group on the market today. Double-Tap shifting is already known and has been getting raves. The hydraulic rim brakes are already getting praise in lots of corners—and has already been ridden in the Tour de France. SRAM is a great company to match up with Cervlo. They're equally restless, equally interested in pushing the envelope, equally set on improving both the big and small.
 
In many circles, Red*2 hydraulic rim brakes are seen as a better alternative to both mechanical rim brakes and discs. They're lighter than discs, work with existing technology, allow for lighter components around them, and have better modulation than mechanical rim brakes. The slightly oversized brake hood body gives you more material to grab, an increase in confidence and comfort. The Red *2 Yaw front derailleur means you don't need any front derailleur trim, and the Red *2 Exact Actuation rear derailleur is precise throughout the range and works well with both narrow and wide-range cassettes—no worrying that a *8 will be wonky.
 
The eleven-speed SRAM Red cassette is whisper-quiet and is a wide-ranging ****5. It's driven by a Red chain and a Rotor 3D+ BBright crankset with semi-compact *2/*6 gearing. Perfect for steep climbs and long fast descents, and everything in between.

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