Links to included content.
2013 Alias A2 by TH_722 - http://forum.mxsimulator.com/viewtopic.php?f=7&t=19161
EVS T7 Helmet by P2sta/KTM57 - http://forum.mxsimulator.com/viewtopic.php?f=7&t=18133
HD Normal Map wheels by Giopanda - http://forum.mxsimulator.com/viewtopic. ... 45#p187945
KTM125sx, KTM250sxf by DDMX/Giopanda - http://forum.mxsimulator.com/viewtopic.php?f=7&t=3520
KTM350 by ShowtimeMX - http://www.puremxs.com/Bikes/BikeViewer.aspx?BikeID=278
2010 Yamahas - YZ125 and YZ250F by DJ - http://forum.mxsimulator.com/viewtopic.php?f=7&t=5933
2010 CRF250 by Wilson/Giopanda - http://forum.mxsimulator.com/viewtopic.php?f=7&t=9173
2010 CRF450 by DJ/Wilson/Gio - http://forum.mxsimulator.com/viewtopic.php?f=7&t=13405
RM125 by Mona - http://forum.mxsimulator.com/viewtopic.php?f=7&t=7155
KX125 by MX Team 24120 - http://www.puremxs.com/Bikes/BikeViewer.aspx?BikeID=600
2011 KX250f by steveoktm - http://forum.mxsimulator.com/viewtopic.php?f=7&t=18014
2011 RMZ250 by Attacker - http://forum.mxsimulator.com/viewtopic.php?f=7&t=9574
CR125 by MX Team 24120 - http://puremxs.com/Bikes/BikeViewer.aspx?BikeID=359
CR250 by MX Team 24120 - http://forum.mxsimulator.com/viewtopic.php?f=7&t=12459
I think that is everything.

To install Extract the !RPP2 folder to your Program Files\MX Simulator directory. (not the personal folder)
DO NOT REMOVE THE FILES FROM THE !RPP2 FOLDER
Link - http://www.mediafire.com/?sc11kypk0843261
Update 1 - http://www.mediafire.com/?1dfsq22na07a7sf
Note: You still need to download both files. I haven't created a master pack with the 2013 updates. (It was too big for mediafire)