The Shimano Ultegra R8000 cassette is a high-quality choice for racing bikes. With 11 speeds and a 12-25 gear ratio, this cassette offers a superior gearing choice for the demanding cyclist. The silver design matches every bike well, and compatibility with Shimano bodies ensures trouble-free installation. This cassette is suitable for use with 11-speed HG-X or HG-EV bicycle chains. Product specifications: - Item number: ICSR800011225 - EAN: 4524667623243 - Brand: Shimano - Model: Ultegra - Type: R8000 - Bicycle type: racing bike - Net weight (g): 243 - Number of gears: 11 - Compatible body: Shimano - Gear ratio: 12-25 - Color: silver - Number of gears: 11 - Gear ratio: 11-25 (12-14-14-15-16-17-18-19-21-23-25) - Suitable for 11-speed HG-X or HG-EV bicycle chains.