Was debuted at Interbike in 2009, Australian rims Velocity P35 or Pacenti 35 rims were ultra wide at the time measuring 35mm by 22mm deep with an inside width of 29.5mm, and seemed ideal for fat tires and brutal All Mountain riding. The rim was co-designed by Kirk Pacenti, who is also well known for his development of the 650b wheel size for mountain bike use. The P35 was available in 26", 650b, and 29" sizes, drilled with either 32 or 36 holes.