Yeti Cycles SB120 C-Series

The Switch Infinity system is designed specifically to separate pedaling efficiency from bump absorption. It provides a very stable, supportive platform when you are pedaling hard, minimizing energy loss, while still remaining active enough to track over roots and rocks without feeling harsh.

The SB120 sits in a versatile middle ground. While it is efficient enough for long-distance rides and endurance events, its geometry and 140mm fork make it much more capable on technical descents than a dedicated cross-country race bike. It is an ideal choice if you want one bike that can handle both fast, flowy trails and steeper, rougher terrain.

The Switch Infinity mechanism is sealed and designed to be low-maintenance, but it does require periodic greasing. Yeti includes a grease gun with the bike, and the process is straightforward and quick, typically needing attention every 40 to 50 hours of riding depending on conditions.

Yes, the C-Series frame uses industry-standard specifications, making it highly compatible with most aftermarket upgrades. Whether you want to swap out the drivetrain, brakes, or cockpit components, you will find plenty of options that fit without needing proprietary parts.

The 29-inch wheels provide excellent rollover capability, helping you maintain momentum over rocks and roots. Combined with the bike's modern geometry, this setup offers a stable, planted feel that builds confidence at speed, though it remains agile enough to navigate tight switchbacks.