Sadly we don't have the exact spur gears you are looking for, but we do have the following original Losi ones.
http://www.dms-racing.com/index.php?...ategory_id=156
Or
http://www.dms-racing.com/index.php?...ategory_id=156
Failing that we do have the JConcepts silent speed spur gears which fit, we have these in all sizes.