I think mixed wheel sizes actually make the most sense for gravity riding. 29" front, 27.5" rear is a winning combination in my experience: 29" front for roll over and stability, 27.5" rear for more clearance and more travel, quicker acceleration, and stronger wheels and the combination of the two providing greater OTB resistance and more front end 'pop' for launching up and over obstacles.
I believe there is a UCI rule against mixed wheel sizes though?
June 11, 2017, 2:18 p.m. - Brad_xyz
I think mixed wheel sizes actually make the most sense for gravity riding. 29" front, 27.5" rear is a winning combination in my experience: 29" front for roll over and stability, 27.5" rear for more clearance and more travel, quicker acceleration, and stronger wheels and the combination of the two providing greater OTB resistance and more front end 'pop' for launching up and over obstacles. I believe there is a UCI rule against mixed wheel sizes though?