If you'd rather tackle steep hills than flat roads, the PR 1600 has you covered. A light, low rim is designed to make uphill efforts enjoyable. Going downhill, the rim with a 20 mm inner width offers ideal tire support and thus traction to safely speed down the serpentines. In addition, the improved 350 ratchet hub provides fast engagement so you can accelerate seamlessly after taking a moment to enjoy the breathtaking views. Start planning your route to conquer the next mountain pass now!350 based hubItem SpecificationsCassette Body TypeShimano/SRAM 11 Speed RoadDefined ColorBlackHub/Brake CompatibilityCenter-Lock DiscISO Diameter622 / Road / 29"Rear Axle12mm Thru x 142mmTire TypeTubeless Ready ClincherValvePrestaWheel Size700c