A SERIOUS SLED FOR THOSE WITH SERIOUS ATTITUDE. When you’re looking for the rudest big bumps for the longest flight of the day. It’s full on playtime. This sled is a 2008 Yamaha Nytro RTX 136". It has had new hyfax and oil changed at 250 miles. It also has a brand new battery, new plugs and has a new primary clutch and new jackshaft bearing.