01 What makes it unique
KZ lists the 2021 Sportsmen LE 251RLLE at 5,370 lb dry, a GVWR of 7,000 lb, a net carrying capacity of 1,630 lb and a tongue weight of 730 lb. Its dry weight plus its carrying capacity comes to exactly its GVWR.
It is 28' 7" long and 10' 8" high. KZ prints its tanks as 45 gal fresh, 32 gal grey, 32 gal black.
Among the 14 Sportsmen LE floorplans KZ’s 2021 Sportsmen SE and LE brochure lists with a published dry weight, it is number 4 from the lightest, in a range from 4,520 lb (Sportsmen LE 200THLE) to 8,130 lb (Sportsmen LE 333KBKLE). Every figure in that comparison is KZ’s, for the same model year.
Every number on this page was read on 6 Nov 2026 from KZ’s 2021 Sportsmen SE and LE brochure, the maker’s own dated document for model year 2021.
How the 251RLLE differs from the other thirteen Sportsmen LE floorplans. Most distinctive first. How these ranks are worked out.
- Dry weight, 5,370 lb: fourth-lightest of fourteen, between the 250THLE (5,270 lb) and the 241RKLE (5,450 lb).
- Tongue weight, 730 lb: fourth-lightest of fourteen, between the 231BHKLE (710 lb) and the 261RLLE and 281BHKLE (750 lb).
- Length, 28 ft 7 in: fourth-shortest of fourteen, between the 241RKLE (28 ft 2 in) and the 250THLE (29 ft 1 in).
- Cargo capacity as a share of GVWR, 23.3%: fifth-largest of fourteen, between the 241RKLE (22.1%) and the 291THLE (28%).
- Cargo capacity, 1,630 lb: sixth-largest of fourteen, between the 312FKLE (1,620 lb) and the 333KBKLE (1,865 lb).
- Tongue weight as a share of dry weight, 13.6%: seventh-largest of fourteen, between the 301RKLE and 312FKLE (13.5%) and the 231BHKLE (14.1%).
- GVWR, 7,000 lb: shared with the 200THLE, 241RKLE and 261RLLE; of fourteen, one lower and nine higher, nearest the 231BHKLE (6,000 lb) and the 281BHKLE and 301RKLE (8,000 lb).
- Sleeping capacity, 6: shared with the 250THLE and 270THLE; of fourteen, six smaller and five larger, nearest the 241RKLE, 261RLLE and 303KBLE (5) and the 231BHKLE (7).
Next to the 250THLE, the nearest lighter floorplan by dry weight, the 251RLLE is 100 lb heavier by dry weight, has a GVWR 1,800 lb lower, has 1,900 lb less cargo capacity, has a tongue weight 200 lb lighter and is 6 in shorter; the two publish the same exterior height, interior height, fresh tank, grey tank, black tank and sleeping capacity.
Next to the 241RKLE, the nearest heavier floorplan by dry weight, the 251RLLE is 80 lb lighter by dry weight, has 80 lb more cargo capacity, has a tongue weight 190 lb heavier, is 5 in longer, has a grey tank 32 gal smaller and sleeps one more; the two publish the same GVWR, exterior height, interior height, fresh tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 28' 7"
- Exterior height
- 10' 8"
- Exterior width
- 96"
- Interior height
- 78"
Weights
- Dry / unit base weight (UVW)
- 5,370 lb
- GVWR (max loaded)
- 7,000 lb
- Net cargo / payload (CCC)
- 1,630 lb
- Hitch / tongue weight
- 730 lb
Capacities
- Fresh water
- 45 gal
- Grey water
- 32 gal
- Black water
- 32 gal
Running gear
- Hitch type
- Bumper pull
- Tire size
- 14"
Sleeping & layout
- Sleeps
- 6
- Dry Axle Weight*
- 4,640
- Refrigerator (cu. feet)
- 7
- Water Heater Cap. (gal. G/E w/DSI)
- 6
- LP Gas Cap. (lbs.)
- 40
- Furnace BTUs (1,000s)
- 30
- Model year source
- Spec page 3 footer prints "2 0 2 1 SPORTSMEN LE TRAVEL TRAILERS & TOY HAULERS" (letter-spaced); KZ also files it under 2021 (kz-rv.com/brochures/2021/).
- Weight basis (as printed)
- *This weight reflects the rolling average unit weight for each model. Your trailer weight will vary according to optional equipment.
- Length basis (as printed)
- ** Exterior length is measured from rear of bumper to leading edge of coupler.
- Awning
- 18'
How these published figures sit against the rest of the catalogue: travel trailer tongue weight by size; fresh, grey and black tank sizes; camper trailer size chart.
Drawn to scale
Weight budget
Size, with end view
Holding tanks
Axles, wheels and nose shape are schematic; not a floorplan. Data: dataset.
Towing it
Check your vehicle. Enter the ratings from your owner’s manual and the door-pillar placard.
Compares your figures with this page’s published GVWR (7,000 lb) and the upper loaded tongue estimate (1,050 lb, a rule of thumb). Your vehicle’s placard and the trailer’s own weight label govern.
Loaded range: 10–15% of GVWR on the tongue, a rule of thumb, not a measurement of this unit. No truck ratings or hitch classes (why; NHTSA, DOT HS 809 433). The range starts at the published figure, because loaded is never lighter than that.
03 The Sportsmen LE floorplan family
KZ’s 2021 Sportsmen SE and LE brochure lists 14 Sportsmen LE floorplans; every one with a printed weight has a page here.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| Sportsmen LE 200THLE | 24' 3" | 4 | Profiled |
| Sportsmen LE 231BHKLE | 26' 5" | 7 | Profiled |
| Sportsmen LE 250THLE | 29' 1" | 6 | Profiled |
| Sportsmen LE 251RLLE | 28' 7" | 6 | Profiled |
| Sportsmen LE 241RKLE | 28' 2" | 5 | Profiled |
| Sportsmen LE 270THLE | 30' 10" | 6 | Profiled |
| Sportsmen LE 261RLLE | 30' 8" | 5 | Profiled |
| Sportsmen LE 291THLE | 33' 10" | 8 | Profiled |
| Sportsmen LE 281BHKLE | 32' 1" | 9 | Profiled |
| Sportsmen LE 301RKLE | 34' 5" | 4 | Profiled |
| Sportsmen LE 312FKLE | 35' 5" | 4 | Profiled |
| Sportsmen LE 332BHKLE | 37' 3" | 10 | Profiled |
| Sportsmen LE 303KBLE | 34' 7" | 5 | Profiled |
| Sportsmen LE 333KBKLE | 38' | 9 | Profiled |
KZ’s 2021 Sportsmen SE and LE brochure lists 14 Sportsmen LE floorplans. Every one with a printed weight has a page here.
04 Notes on this floorplan
What KZ does not publish for the Sportsmen LE 251RLLE
Nothing is filled from a sibling model, a different model year or a dealer listing.
Read the label on the trailer
Federal rules put a load-carrying label inside every RV trailer: its unloaded weight with full propane, its cargo carrying capacity and its GVWR (49 CFR 571.110 and 571.120). Those figures come from the trailer itself and govern the towing decision.
05 How it compares
5,270 lb dry and 8,800 lb GVWR, against this model’s 5,370 lb and 7,000 lb.
5,450 lb dry and 7,000 lb GVWR, against this model’s 5,370 lb and 7,000 lb.
06 Loading it for a trip
A full 45-gallon fresh tank is about 374 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 23% of the Sportsmen LE 251RLLE’s 1,630 lb cargo capacity, leaving 1,256 lb (209 lb per rated berth). Across 14 Sportsmen LE floorplans the water share runs 11% to 38%, and 8 give up more than this one. Nearest on that share: Sportsmen LE 333KBKLE at 20% and Sportsmen LE 312FKLE at 23%. Your own unit’s figure is on the label inside its entry door (49 CFR 571.110 S9.3.3).
07 Where this floorplan sits
Closest sibling: the Sportsmen LE 261RLLE, nearest on the published figures. It differs on 5 of the 9 fields both publish (this plan first): length 28 ft 7 in vs 30 ft 8 in; sleeps 6 vs 5; dry weight 5,370 lb vs 5,900 lb; cargo capacity 1,630 lb vs 1,100 lb; hitch weight 730 lb vs 750 lb. They match on GVWR, fresh tank, grey tank and black tank.
| Sportsmen LE plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 7,000 | 2–5 of 14 | 6,000–9,995 |
| Dry weight (lb) | 5,370 | 4 of 14 | 4,520–8,130 |
| Cargo capacity (lb) | 1,630 | 9 of 14 | 980–3,530 |
| Hitch weight (lb) | 730 | 4 of 14 | 540–1,280 |
| Length | 28 ft 7 in | 4 of 14 | 24 ft 3 in–38 ft 0 in |
| Grey tank (gal) | 32 | 1–10 of 14 | 32–64 |
| Sleeps | 6 | 7–9 of 14 | 4–10 |
Either side of it by GVWR: Sportsmen LE 241RKLE matches it at 7,000 lb GVWR; Sportsmen LE 261RLLE matches it at 7,000 lb GVWR.
| Nearest Sportsmen LE siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Sportsmen LE 251RLLE | 28 ft 7 in | 6 | 5,370 | 7,000 | 1,630 | 730 | 45 |
| Sportsmen LE 261RLLE | 30 ft 8 in | 5 | 5,900 | 7,000 | 1,100 | 750 | 45 |
| Sportsmen LE 231BHKLE | 26 ft 5 in | 7 | 5,020 | 6,000 | 980 | 710 | 45 |
| Sportsmen LE 250THLE | 29 ft 1 in | 6 | 5,270 | 8,800 | 3,530 | 930 | 45 |
| Sportsmen LE 241RKLE | 28 ft 2 in | 5 | 5,450 | 7,000 | 1,550 | 540 | 45 |
| Sportsmen LE 200THLE | 24 ft 3 in | 4 | 4,520 | 7,000 | 2,480 | 690 | 45 |
All 14 Sportsmen LE floorplans: Sportsmen LE line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry (lb) | Sleeps | Length |
|---|---|---|---|---|
| Sportsmen LE 251RLLE | 7,000 | 5,370 | 6 | 28 ft 7 in |
| Coachmen Apex Ultra-Lite X-Series 24RBX | 7,000 | 5,507 | — | 29 ft 1 in |
| Black Series HQ15 | 7,000 | 5,291 | 3 | 23 ft 0 in |
| Connect SE C221RKSE | 7,000 | 5,660 | 4 | 27 ft 0 in |
| Frontier 2303P-F | 7,000 | 4,670 | — | 25 ft 2 in |
| inTech Black Wing 724-X | 7,000 | — | 4 | 23 ft 11 in |
| Jag 25JQ | 7,000 | 4,810 | — | 24 ft 9 in |
Against the Sportsmen LE 251RLLE: the Black Series HQ15 is 6 ft shorter and sleeps 3 fewer; the Connect SE C221RKSE is 2 ft shorter and sleeps 2 fewer.
08 Common questions about the Sportsmen LE 251RLLE
How much does the Sportsmen LE 251RLLE weigh?
5,370 lb dry; 7,000 lb GVWR, the most it may weigh loaded.
How much can the Sportsmen LE 251RLLE carry?
1,630 lb, 23% of its GVWR (median across 1,416 travel trailers here: 23%). A full fresh tank uses 374 lb of it.
What is the tongue weight of the Sportsmen LE 251RLLE?
730 lb as published, 14% of the dry weight (median across 2,002 travel trailers here: 12%).
What size tow vehicle does the Sportsmen LE 251RLLE need?
A tow rating of at least 7,000 lb, plus payload for the loaded tongue weight, passengers and cargo.
How many people does the Sportsmen LE 251RLLE sleep?
It is rated to sleep 6. 5 of the 14 Sportsmen LE floorplans that publish a count sleep more.
What are the tank capacities on the Sportsmen LE 251RLLE?
Fresh 45, grey 32, black 32 gallons. Off hookups, fresh water runs out first.
How long is the Sportsmen LE 251RLLE?
28' 7" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
13 of the 18 fields this catalogue tracks are published for the Sportsmen LE 251RLLE. Not published: slide count, axle count, refrigerator, air conditioning, tire size (a description is published, a size is not).
Sourcing rules: methodology.
10 Manuals & documents
Sources: kz-rv.com (linked below); the full source note is at the foot of the page.
11 NHTSA safety record
NHTSA holds 2 recall campaigns and 2 owner complaints (model years 2005 on) against the Sportsmen LE line (a recall and a complaint are not the same thing).
Too few reports to show a pattern. 2 complaints have been filed on this line — not enough to say what fails most often. They cover equipment.
Recall coverage here is not complete, and complaints are owners’ unverified reports (how this record is built). Check a specific VIN at NHTSA before you buy. Full tables are on the Sportsmen LE line page.