Schwalbe Billy Bonkers - Bronze Size:26 x 2.1" Bearings are housed in nylon

Bearings are housed in nylon cups which will be pressed into the frames bottom bracket shell

Streamlined design: Combines tool storage and data display into one compact mount to reduce handlebar clutter

giving your feet the ultimate protection for your next ride or adventure

so you don't lose any of the wattage you produce

Schwalbe Billy Bonkers - Bronze Size:26 x 2.1" Bearings are housed in nylonThis lightweight (490g Performance Line), not only rolls extremely easily, it also ensures fun loving and agile riding. If tricks and jumps get messed up, Billy Bonkers remains good natured, forgiving even egregious mistakes. Features Maximal micro teeth: For grip on dusty and sandy groundClosely positioned blocks: Multiply the grippy edgesSmall ramps: Increase the speed of the tire, resulting in more airtime Specifications ETRTO: 54