I picked up my 2004 Demo 9 end of 2008. I have only rode the bike at N Star this year. It came with a rear 2.5 red Michelin Extreme. The extreme tires beads blew out after about 5 rides. I figured out it was not a good tire for DH'ing.... So I just put on a 2.5 Michelin 24DH. The 24 is like riding on hot asphalt. But the rolling resistance is a lot more then the Extreme. I have the rear tire at 35 psi for N star riding. Would more psi help with the rolling resistance? Or just make the tire loose traction? I love the traction but hate the extra effort......
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