Campagnolo EKAR GT Cassette - 13-Speed 10-48t Silver For N3W Driver Body SilverCampagnolo EKAR GT Cassette 13 Speed 10 48t Silver For N3W Driver Body Silver. The Campagnolo EKAR GT 13 speed cassette is available in different options that complete the range and reflect the different specializations on the gravel scene to deliver very smooth gear ratio progression. Small jumps for the first 6 sprockets which increase in the second half with the larger sprockets ensures an optimum experience on the saddle and helps you get the best