When two boats share the same hull type — in this case both the Klamath 17 ft. Baja 2011 and the Klamath 21 ft. Baja 2012 are deep vee designs with aluminum construction — 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?
Size is the most obvious dividing line here. The Klamath 21 ft. Baja 2012 measures 21,3 feet overall (2012), giving it roughly 4,0 additional feet of deck space compared to the Klamath 17 ft. Baja 2011 at 17,3 feet (2011). Weight tells a clearer story for trailering families: the Klamath 17 ft. Baja 2011 tips the scales at 675 lbs — 560 lbs more than the Klamath 21 ft. Baja 2012 at 115 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 150 hp, the Klamath 21 ft. Baja 2012 has a 90-hp advantage over the Klamath 17 ft. Baja 2011's 60-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Klamath 21 ft. Baja 2012 is rated for 8 passengers, while the Klamath 17 ft. Baja 2011 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Klamath 21 ft. Baja 2012 could be the deciding factor.
Bottom line: Choose the Klamath 21 ft. Baja 2012 if your priority is putting more people on the water — it handles 8 passengers and at 21,3 ft it has the deck room to back that rating up comfortably. The Klamath 17 ft. Baja 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.