Stage 2: single-cam motor. Excellent midrange and top-end increase. Improved throttle response. Uses stock auto-decompression mechanism. Uses stock valve springs.
Honda CRF 450R 2002-2006
Honda CRF 450X 2005-2007
Honda TRX 450ER 2006-2007
Honda TRX 450R 2004-2008
Hot Cams part # 1024-2