Good ventilation thanks to 4 air inlets and 9 air outlets

• Integrated barometric altimeter

This means it has a much longer lifespan

for bicycles with hub dynamo

- 2 ounce (59ml) measuring cup for a bicycle tire

SRAM XG-1299 Eagle™ Kupfer Kassette Size:10-50 Good ventilation thanks to 4A quick look at the new X DOME Eagle cassette is enough: a front derailleur is completely unnecessary on a mountain bike. Developed for our proven XD driver body, this cassette has twelve sprockets with ten to 50 teeth. With a total translation of 500 percent! It is significantly lighter than gears with two chainrings. Independent tests show that its X DOME construction makes it the most torsion resistant cassette on the market. Their new features