Thomson elite direct mount stemthe thomson direct mount stems allow riders the ultimate in stiffness for dual crown cockpits the 65mm wide handlebar clamp width exceptionally benefits maximum torsional stiffness which translates into better steering precision direct mount stems fit forks from rockshox fox manitou and marzocchi 2012 features clamp31 8mm weight160g 50mm or 145g 40mmbuythomson componentsfrom chain reaction cycles the worlds largest online bike store