Length: 108 in.
Dry Weight: 550 lb.
Suspension Travel (front/rear): 9 in./11.5 in.
Engine Type: Four-Cylinder Four-Stroke
The new Yamaha RX-1 is proof that a four-stroke snowmobile can deliver a thrill ride. It's powered by a 998cc, four-cylinder engine that winds out to 10,200 rpm to deliver a very potent 145 horsepower. The engine is smoke-free, even on cold starts, and delivers seamless, silky-smooth power at the touch of the throttle. Like other four-strokes, the RX-1 requires electric starting and a battery, which helps boost the sled's dry weight to 550 pounds, or about 100 pounds more than a comparable high-performance two-stroke. You feel the weight on tight or bumpy trails, but point the RX-1 across the lake and few sleds will catch it.