Mountain bikers, get ready to upgrade your drivetrain with this killer KCNC oversized pulley wheel system! Designed specifically for SRAM Eagle XX1, X01, GX, and NX 12-speed rear derailleurs, this thing reduces friction by a massive 45% compared to stock pulleys. The 14-tooth top pulley and 16-tooth bottom pulley both feature sealed bearings that roll smoother and last longer than standard setups. Made from lightweight 7075 alloy, the entire cage weighs only about 75 grams while being incredibly durable. The red color adds some serious style points to your bike's rear end, and the improved bearing quality means better resistance to contamination and corrosion. What this translates to on the trail is noticeably smoother pedaling, less drivetrain drag, and more of your power actually going to moving you forward instead of being lost to friction. The coated bearings extend the life even further, making this a smart long-term upgrade for serious riders. Whether you're racing, hitting technical trails, or just want your bike to perform at its best, reducing drivetrain friction is one of the most effective upgrades you can make. If you're tired of mediocre shifting performance or want to squeeze every bit of efficiency from your pedaling, this KCNC pulley system delivers professional-level performance that you'll feel on every ride!
Free 30-day returns 
Free 30-day returns
