<p><span><span><strong>12mm REAR</strong> <strong>Thru Kit</strong></span><strong>:</strong> These kits convert your standard quick release hub to a 12mm thru axle type. Select the M16 kit(485-285-05) if you have a M16 hub shell, or select the XMR/CX11 135mm kit(485-286-05) if you have the newer XMR/CX11 hub shell. No Bearing Change.</span></p>