Both the Nordic Boats 20 Cyclone SR 2011 and the Nordic Boats 21 CrossFire 2011 are modified-V designs, the first built in fibreglass and the second in composite, so the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
On paper these two are close siblings in the size department - Nordic Boats 20 Cyclone SR 2011 at 20,0 ft versus Nordic Boats 21 CrossFire 2011 at 21,0 ft. Weight tells a clearer story for trailering families: the Nordic Boats 20 Cyclone SR 2011 tips the scales at 3 000 lbs - 200 lbs more than the Nordic Boats 21 CrossFire 2011 at 2 800 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
Both boats are rated for 6 passengers - a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Bottom line: The Nordic Boats 20 Cyclone SR 2011 and Nordic Boats 21 CrossFire 2011 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.