Tips: With our innovative hollowed-out design and optimized spacing layout, we estimate that up to 90% of carbon fiber belts on the market can achieve around a 20% increase in lifespan when paired with this drive system. Upgrade your Light Bee with REV797’s Primary Drive Belt Conversion Kit—engineered for riders who demand durability, performance, and low maintenance. Replace the stock chain with a quieter, stronger belt system designed for aggressive riding in mud, sand, or city streets. 1. Stronger, Wider Belt: 19mm (light bee 23T&51T)/25mm (ultra bee 27T&61T) carbon belt offers superior strength and grip compared to the stock 16mm/23mm, designed to withstand high torque, heavy accelerations, and frequent 0–60 tests. 2. Mud-Shedding Pulley Teeth: Hollow, drilled teeth let dirt and sand fall through, reducing wear and extending belt life, perfect for off-road or aggressive trail riding. 3. Quieter Operation, Less Drag, Less Heat: Enjoy the smooth, quiet feel of belt drive with reduced friction and maintenance compared to chains. 4. Signature Whistle Under Load: Hollow teeth produce a subtle “scream” under heavy acceleration—a mark of precision engineering. 5. CNC Machined Mold Steel: Sandblasted, copper- and chrome-plated pulleys for maximum strength, wear resistance, and corrosion protection. 6. Built for Reliability: The pulley fits belts up to 20.5mm (Light Bee, etc) / 25mm (Ultra Bee). Weighing 0.86 lbs, it is heat-treated for toughness and designed to fit stock geometry for straightforward installation. Upgrade to a drivetrain designed for high-performance, aggressive riders—lighter pulleys, stronger belt, and the ability to evacuate mud and dirt for maximum durability.