The mavic ksyrium pro carbon sl tubular haute route wheelset features a wide carbon tubular rim and ceramic bearings the superlight design ensures fast acceleration and climbing features weighs only 1190g superlight full carbon rim wide rim provides good tubular tyre support to a 25mm supple tubular tyre 25mm deep rim dampens road vibrations refined itgmax brake tracks improve braking distance in both wet and dry conditions incredibly high quality ceramic bearings provided by ceramic