The Shadow Symbol Cassette is the result of an effort to create the most reliable, refined, and well functioning cassette hub possible. With the popularity of plastic hub guards, they’ve also decided to include a replaceable non drive side plastic hub guard to boost the value and convenience factors as well. This combination of reliability, refined design, and functionality paired with additional features such as a non drive side plastic hub guard and beautiful aesthetic design makes the new Shadow Symbol Cassette top of it’s class. ###section### Product Specs HUB TYPE: Cassette AXLE: 14mm Male DRIVER: 9t SPOKE HOLES: 36h WEIGHT: 548g / 19.35oz