Enhanced traction
Hardtail riders appreciate a 29” wheelset’s larger “surface contact face”: Under same preconditions (tire pressure, profile and width), 29ers offer greater surface contact than 26” versions (as shown by the thinner and longer oval “E” in Image 1). Advantage: The tire rolls with less energy expenditure while providing a wider tread/surface grip area – and therefore better traction. Uphill, this means deferred rear wheel slippage. During sharp turns, 29ers grant increased steering control due to added lateral stability.

Obstacles? Easy.
29” advantage: These giant wheels master such challenges thanks to changing leverage. The latter results from a combination of weight force (W; downwards) and driving force (D; in direction of travel). Example: If a root is hit, the weight load on the tire (W) has to be carried over the obstacle via driving force (D). In case of a 29er, the proportionally bigger leverage (a) provides a more efficient moment of force. Thus, bike and rider experience less impact deceleration at obstacles – and keep on rolling more easily.

Rolling resistance
Thanks to its different “surface contact face”, the bigger tire manages on less flexing. Result: Reduced rolling resistance.