CONTEC "Grad" Cassette Sprockets

Improve your ride quality for longer with our Grad cassettes. We make no compromises in terms of function and durability, due to the weight and wear-optimized material mixture of our cassettes: While the largest and heaviest sprockets are made of aluminum to save weight, the smaller sprockets are made of particularly high tensile steel to better withstand the higher torques that are applied to the less teeth. As a result, our Grad cassettes offer increased durability compared to conventional sprocket sets, from which you benefit through higher mileage (i.e. longer maintenance intervals) and longer superior shifting performance. Our Grad cassettes have special climbing aids for the chain that make each of your gear changes faster and smoother, so you don't have to think about shifting but can concentrate fully on riding. This cassette is suitable for 9-speed gears and has a 11-40 tooth gradation.