
29er wheels are what give the 29er mountain bike its name. Without these larger wheels, a 29er would be just like any other mountain bike. However, not all of these wheels are built the same, so some research might be necessary to find your best option.
Adding a set of 29er wheels to your mountain bike has both advantages and disadvantages. One of the major advantages has to do with rolling resistance, as these larger wheels tend to have less of this resistance and therefore have better pedal efficiency. These wheels also provide a slightly more comfortable ride than standard mountain bike wheels.
29er wheels do have their disadvantages as well. Because these wheels are larger they are also heavier. Using larger wheels can also cause problems with some suspension systems that are not designed for this size of wheel.