Custom Yeti ASR XTR Race Build: A Precision Machine for the Breck Epic

This customer came to Base Camp Cyclery with a specific goal in mind, and that was to create a custom mountain bike optimized for the Breck Epic, one of Colorado’s most demanding stage races. They needed a lightweight, race-ready machine that could deliver peak performance over grueling climbs and technical terrain. We got to work, dialing in a build that’s fast, light, and perfectly suited for cross-country racing.

We started with a complete Shimano XTR drivetrain, ensuring top-tier shifting precision and reliability on every stage. To help the rider fine-tune their power output, we added a Rotor inPower powermeter—ideal for tracking effort on long climbs and technical sections. For wheels, we laced up a set of Berd XC25 rims with featherlight Berd spokes and I9 hubs, achieving a balance of stiffness, weight savings, and durability.

The Syncros integrated cockpit gave the bike a clean and streamlined front end, while a KS Carbon Dropper ensured the rider could adjust their saddle height on the fly without adding unnecessary grams. To maximize traction and control, we mounted Vittoria Barzo and Mezcal tires with Vittoria Airliner Light inserts—offering puncture protection and improved handling at lower tire pressures.

When the build was complete, this cross-country rocket weighed in at an impressive 22.6 lbs, including pedals and bottle cages. Whether climbing steep switchbacks or sprinting to the finish, this bike is ready to tackle the Breck Epic head-on.

At Base Camp Cyclery, we take pride in making your dream builds a reality. Whether you’re preparing for a local race or an epic adventure, we’re here to build the perfect bike for your journey!

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