Building a Masterpiece: Cannondale F-Si Hi-Mod Heritage Edition x Wheel Angel Custom Carbon

It’s not every day we get to do a LEFTY build!

When a frame as iconic as the Cannondale F-Si Hi-Mod Heritage Edition rolls into our studio, we know we’re dealing with something special. Clad in that unmistakable retro gloss blue and racing yellow, this bike is a beautiful nod to cycling history. But for a modern cross-country rider or triathlete looking for an edge during off-season training, nostalgia alone isn’t enough.

To match the bike's distinct personality and striking aesthetic, we laced up a bespoke set of Wheel Angel Custom Carbon Wheels designed to turn heads, smash personal records, and deliver an unparalleled ride feel.

The Perfect Hub Partnership: Onyx Lefty & Silent Engagement

The heart of this wheelset lies in its hub choice. Up front, we utilized a specialized ONYX Front Lefty Hub in an anodized blue that perfectly complements the frame.

For the rear, we went with Onyx’s signature Instant Engagement Silent Rear Hub. If you've never ridden an Onyx hub, the sensation is hard to describe. There is zero lag when you stomp on the pedals—just immediate power transfer. And when you coast? Complete, beautiful silence. No loud clicking to distract you from the trail, just the pure sound of your tires biting into the dirt.

Built for the Dreamers and PR Chasers

Every cyclist knows the feeling of wanting a bike that is uniquely theirs—a machine built without compromises. By pairing the lightweight agility of the Hi-Mod carbon frame with our stiff, responsive carbon rims and premium Shimano XTR drivetrain components, this build balances retro emotions with elite-tier performance.

This is one bike that brings staring, plenty of envy, and maximum speed on every single trail.

Ready to elevate your ride? Whether you are looking to shave seconds off your local loop or want a completely custom wheelset tailored to your unique frame, contact the Wheel Angel team today to start your custom build journey.