2015 Venture RVSonic Sport 18BH

Venture RV lists the 2015 Sonic Sport 18BH at 2,623 lb dry, a GVWR of 3,500 lb, a net carrying capacity of 877 lb and a tongue weight of 346 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.

It is 20' 6" long and 100" high. Venture RV prints its tanks as 20 gal fresh, 15 gal grey, 9 gal black.

Among the 6 Sonic Sport floorplans Venture RV’s Sonic Sport flyer (filed in Venture RV’s 2015 brochure folder; the flyer prints no year) lists with a published dry weight, it is number 3 from the lightest, in a range from 2,263 lb (Sonic Sport 15BH) to 2,740 lb (Sonic Sport 180). Every figure in that comparison is Venture RV’s, for the same model year.

Every number on this page was read on 6 Nov 2026 from Venture RV’s Sonic Sport flyer (filed in Venture RV’s 2015 brochure folder; the flyer prints no year); model year 2015 comes from where the maker files it on its own site, not from the document’s text.

How the 18BH differs from the other five Sonic Sport floorplans. Most distinctive first. How these ranks are worked out.

• Tongue weight as a share of dry weight, 13.2%: second-smallest of six, between the 17RBT (12.5%) and the 18BS (13.5%).
• Tongue weight, 346 lb: third-lightest of six, between the 15BH (343 lb) and the 18BS (356 lb).
• Cargo capacity, 877 lb: largest of six, level with the 160; next is the 18BS (867 lb).
• Cargo capacity as a share of GVWR, 25.1%: largest of six, level with the 160; next is the 18BS (24.8%).
• Exterior height, 8 ft 4 in: lowest of six, level with the 18BS; next is the 15BH (8 ft 5 in).
• Black tank, 9 gal: smallest of six, level with the 15BH; next is the 18BS (15 gal).
• Dry weight, 2,623 lb: shared with the 160; of six, one lighter and three heavier, nearest the 15BH (2,263 lb) and the 18BS (2,633 lb).
• Length, 20 ft 6 in: shared with the 18BS; of six, three shorter and one longer, nearest the 160 (19 ft 9 in) and the 180 (22 ft 1 in).
• Grey tank, 15 gal: smallest of six, level with the 15BH and 18BS; next are the 160, 17RBT and 180 (32 gal).

Next to the 15BH, the nearest lighter floorplan by dry weight, the 18BH is 360 lb heavier by dry weight, has a GVWR 700 lb higher, has 340 lb more cargo capacity, has a tongue weight 3 lb heavier, is 3 ft 4 in longer, stands 2 in lower and has a fresh tank 10 gal larger; the two publish the same interior height, grey tank and black tank.

Next to the 160, the floorplan with the same dry weight, the 18BH has a tongue weight 20 lb lighter, is 9 in longer, stands 3 in lower, has a grey tank 17 gal smaller and has a black tank 23 gal smaller; the two publish the same dry weight, GVWR, cargo capacity, interior height and fresh tank.

Next to the 18BS, the nearest heavier floorplan by dry weight, the 18BH is 10 lb lighter by dry weight, has 10 lb more cargo capacity, has a tongue weight 10 lb lighter and has a black tank 6 gal smaller; the two publish the same GVWR, length, exterior height, interior height, fresh tank and grey tank.

Venture RV’s Sonic Sport flyer (filed in Venture RV’s 2015 brochure folder; the flyer prints no year) lists 6 Sonic Sport floorplans; every one with a printed weight has a page here.

A full 20-gallon fresh tank is about 166 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 19% of the Sonic Sport 18BH’s 877 lb cargo capacity, leaving 711 lb. Across 6 Sonic Sport floorplans the water share runs 15% to 22%, and 3 give up more than this one. Nearest on that share: Sonic Sport 160 at 19% and Sonic Sport 18BS at 19%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.110 S9.3.3).