When two boats share the same hull type — in this case both the Lowe R1860 2010 and the Lowe ST170 2009 are modified 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?

On paper these two are close siblings in the size department — Lowe R1860 2010 at 18,4 ft versus Lowe ST170 2009 at 17,0 ft. Weight tells a clearer story for trailering families: the Lowe ST170 2009 tips the scales at 995 lbs — 910 lbs less than the Lowe R1860 2010 at 85 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 share a closely matched power ceiling — 60 hp for the Lowe R1860 2010 and 75 hp for the Lowe ST170 2009. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.

For family outings this is probably the sharpest distinction between the two. The Lowe R1860 2010 is rated for 7 passengers, while the Lowe ST170 2009 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Lowe R1860 2010 could be the deciding factor.