Working on building snowbike specific engine covers. 08-14 RMZ ones are ready, working on KTM followed by honda, kawasaki and yamaha.
More details here: http://www.snowest.com/forum/showthread.php?p=3433729&posted=1#post3433729
More details here: http://www.snowest.com/forum/showthread.php?p=3433729&posted=1#post3433729