The Triton Boats TR-21XD SC 2006 vs Triton Boats TR-22PDC 2005 comparison sits squarely in the category of decisions where specs alone won't tell the whole story: intended use, storage, and long-term ownership costs all factor in.
On paper these two are close siblings in the size department - Triton Boats TR-21XD SC 2006 at 21,0 ft versus Triton Boats TR-22PDC 2005 at 22,0 ft. Weight tells a clearer story for trailering families: the Triton Boats TR-21XD SC 2006 tips the scales at 1 950 lbs - 184 lbs more than the Triton Boats TR-22PDC 2005 at 1 766 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.
The power gap is worth calling out. Rated to 300 hp, the Triton Boats TR-22PDC 2005 has a 50-hp advantage over the Triton Boats TR-21XD SC 2006's 250-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads - 54 gal and 56 gal - so range won't be a tiebreaker here.
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: Performance buyers should lean toward the Triton Boats TR-22PDC 2005 and its 300-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Triton Boats TR-21XD SC 2006 with its 250-hp rating is the more economical daily driver.