Performance
The advantages and disadvantages of 29ers are currently being debated in the mountain bike community. Those who believe the 29" wheel to be inferior often mention added weight, perceived sluggishness in handling, and problems with fit (specifically, front wheel/toe overlap and high standover height). 29" enthusiasts respond with comments about reduced rolling resistance, perceived increased stability without sacrificing quick handling, and an enhanced ability to roll over obstacles.
One item that is often raised is tire contact patch size and shape. All else being equal, such as tire width, rim width, inflation pressure and rider weight, the contact patch of a 29" wheel has the same area and is slightly longer (~5%) than that of a 26" wheel.
Read more about this topic: 29er (bicycle)
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