Colnago Y1Rs Shimano Di2 Custom Bike Info

Precision Italian Craft Meets Shimano's Electronic Excellence - Built Your Way

The Colnago Y1Rs is a machine born from decades of Italian racing pedigree—designed for peak performance, total integration, and flawless road feel. Now available through RA Cycles' Custom Studio, you can build the Y1Rs specifically around Shimano’s 12-speed Di2 platforms: Dura-Ace R9250 and Ultegra R8150.

This build starts with a curated selection of proven components—a popular default setup chosen by our expert staff to give you a balanced, race-ready ride. But from there, it’s all yours to shape. Wheels, gearing, finishing kit, tires, and everything in between—we give you the freedom to dial it in to your exact spec.

Don’t see what you're looking for? No problem. Want a unique chainring, an aero cockpit swap, or a special edition saddle? We’ve likely got it—or can get it. Just complete your order and we’ll take it from there.

Behind the scenes, our intelligent builder ensures compatibility between your chosen components. In the rare case something doesn’t quite work together, a member of our team will reach out to walk you through your options and make any necessary changes.

Not all selected items may be in stock at the time of your build, but rest assured—our team will source what’s needed quickly. After checkout, you'll receive a follow-up from one of our Custom Studio experts to confirm your specs, provide realistic timelines, and offer personalized recommendations if needed.

The price you see includes professional assembly, build processing, and quality control. Every custom Y1Rs we build undergoes a rigorous inspection by our most experienced technicians. This is a true boutique build experience, and we guarantee perfection.

Need guidance? Want to talk through ideas? We're always here via live chat, phone, or email. Even after you complete your order, changes can still be made right up to assembly (excluding special-order SKUs, which we’ll clarify with you directly).

A Colnago is always special—but one built around Shimano Di2 and tailored by you is something else entirely.

Welcome to RA Cycles Custom Studio—let’s bring your dream Y1Rs to life.