01 What makes it unique
KZ lists the 2027 Connect Mini CM221RB at 5,090 lb unloaded (UVW), with a GVWR of 6,000 lb, a cargo carrying capacity of 910 lb and a dry hitch weight of 520 lb. Its UVW plus its cargo capacity comes to exactly its GVWR.
It is 27' 3" long and 10' 5" high with the air conditioner, with 36 gal fresh, 32 gal grey and 32 gal black tanks. Fresh water weighs about 8.3 lb per US gallon, so a full fresh tank uses roughly 299 lb of the cargo capacity before anything else is loaded.
Among the 5 Connect Mini floorplans KZ lists for 2027 with a published weight, it is number 5 by unloaded weight, in a range from 3,980 lb (CM181RB) to 5,090 lb (CM221RB). Every figure in that comparison is KZ’s, for the same model year.
Every number on this page was read on 5 Nov 2026 from KZ’s own floorplan page for the Connect Mini CM221RB, whose floorplan drawing KZ labels 2027. KZ notes that its UVW reflects a rolling average for the model and that your trailer will vary with optional equipment. KZ marks the floorplan as new.
How the CM221RB differs from the other four Connect Mini floorplans. Most distinctive first. How these ranks are worked out.
- Dry weight, 5,090 lb: heaviest of five; next is the CM231BH (4,960 lb).
- Dry tongue weight, 520 lb: lightest of five; next is the CM171RK (540 lb).
- Dry tongue weight as a share of dry weight, 10.2%: smallest of five; next is the CM231BH (11.7%).
- Cargo capacity, 910 lb: second-largest of five, between the CM181RB (820 lb) and the CM231BH (1,040 lb).
- Length, 27 ft 3 in: second-longest of five, between the CM181RB and CM191BHK (22 ft 1 in) and the CM231BH (27 ft 6 in).
- Cargo capacity as a share of GVWR, 15.2%: third-smallest of five, between the CM171RK (14.8%) and the CM181RB (17.1%).
- Sleeping capacity, 5: third-smallest of five, between the CM171RK and CM181RB (3) and the CM191BHK (6).
- GVWR, 6,000 lb: highest of five, level with the CM231BH; next are the CM171RK, CM181RB and CM191BHK (4,800 lb).
Next to the CM231BH, the nearest lighter floorplan by dry weight, the CM221RB is 130 lb heavier by dry weight, has 130 lb less cargo capacity, has a dry tongue weight 60 lb lighter, is 3 in shorter and sleeps two fewer; the two publish the same GVWR, exterior height, interior height, fresh tank, grey tank and black tank.
02 Full specifications
Dimensions
- Exterior length
- 27' 3"
- Exterior height
- 10' 5" (with A/C)
- Exterior width
- 90"
- Interior height
- 78"
Weights
- Dry / unit base weight (UVW)
- 5,090 lb
- GVWR (max loaded)
- 6,000 lb
- Net cargo / payload (CCC)
- 910 lb
- Hitch / dry tongue weight
- 520 lb
Capacities
- Fresh water
- 36 gal
- Grey water
- 32 gal
- Black water
- 32 gal
- Propane
- 20 lb
Running gear
- Hitch type
- Bumper pull
- Tire size
- 15"
Sleeping & layout
- Sleeps
- 5
- Refrigerator
- 8 cu ft
- Awning
- 19'
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 (6,000 lb) and the upper loaded tongue estimate (900 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).
03 The Connect Mini floorplan family
KZ lists 5 Connect Mini floorplans for 2027; this site profiles every one with a published weight, from KZ’s own floorplan pages.
| Floorplan | Nominal | Sleeps | Notable |
|---|---|---|---|
| CM181RB | 22' 1" | 3 | Profiled |
| CM171RK | 21' 6" | 3 | Profiled |
| CM191BHK | 22' 1" | 6 | Profiled |
| CM231BH | 27' 6" | 7 | Profiled |
| CM221RB | 27' 3" | 5 | Profiled |
KZ lists 5 Connect Mini floorplans. Every 2027 plan with a published weight has a page here; the rest are catalogued with the reason against each.
04 Notes on this floorplan
What KZ does not publish for the CM221RB
KZ’s page prints no axle count and no price against this floorplan, so none is given. Nothing is filled from a sibling floorplan, 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
4,960 lb UVW and 6,000 lb GVWR, against this plan’s 5,090 lb and 6,000 lb.
06 Loading it for a trip
A full 36-gallon fresh tank is about 299 lb of water (water counts as cargo: 49 CFR 571.110 S9.3.2), 33% of the CM221RB’s 910 lb cargo capacity, leaving 611 lb (122 lb per rated berth). Across 5 Connect Mini floorplans the water share runs 29% to 47%, and 3 give up more than this one. Nearest on that share: Connect Mini CM231BH at 29% and Connect Mini CM181RB at 36%. 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 Connect Mini CM231BH, nearest on the published figures. It differs on 5 of the 9 fields both publish (this plan first): length 27 ft 3 in vs 27 ft 6 in; sleeps 5 vs 7; dry weight 5,090 lb vs 4,960 lb; cargo capacity 910 lb vs 1,040 lb; hitch weight 520 lb vs 580 lb. They match on GVWR, fresh tank, grey tank and black tank.
| Connect Mini plans | This plan | Position, low to high | Range |
|---|---|---|---|
| GVWR (lb) | 6,000 | 4–5 of 5 | 4,800–6,000 |
| Dry weight (lb) | 5,090 | 5 of 5 | 3,980–5,090 |
| Cargo capacity (lb) | 910 | 4 of 5 | 640–1,040 |
| Hitch weight (lb) | 520 | 1 of 5 | 520–580 |
| Length | 27 ft 3 in | 4 of 5 | 21 ft 6 in–27 ft 6 in |
| Sleeps | 5 | 3 of 5 | 3–7 |
Either side of it by GVWR: Connect Mini CM191BHK is 1,200 lb lighter (4,800 lb GVWR); Connect Mini CM231BH matches it at 6,000 lb GVWR.
| Nearest Connect Mini siblings | Length | Sleeps | Dry (lb) | GVWR (lb) | CCC (lb) | Hitch (lb) | Fresh (gal) |
|---|---|---|---|---|---|---|---|
| Connect Mini CM221RB | 27 ft 3 in | 5 | 5,090 | 6,000 | 910 | 520 | 36 |
| Connect Mini CM231BH | 27 ft 6 in | 7 | 4,960 | 6,000 | 1,040 | 580 | 36 |
| Connect Mini CM191BHK | 22 ft 1 in | 6 | 4,160 | 4,800 | 640 | 550 | 36 |
| Connect Mini CM181RB | 22 ft 1 in | 3 | 3,980 | 4,800 | 820 | 560 | 36 |
| Connect Mini CM171RK | 21 ft 6 in | 3 | 4,090 | 4,800 | 710 | 540 | 36 |
All 5 Connect Mini floorplans: Connect Mini line hub.
| Other lines, nearest by GVWR | GVWR (lb) | Dry or base (lb) | Sleeps | Length |
|---|---|---|---|---|
| CM221RB | 6,000 | 5,090 | 5 | 27 ft 3 in |
| Coachmen Apex Nano 203RBK | 6,000 | 4,158 | — | 23 ft 5 in |
| Colt 20DB | 6,000 | 4,315 | 8 | 24 ft 7 in |
| Flying Cloud 23FB | 6,000 | 5,000 | 4 | 23 ft 11 in |
| International 23FB | 6,000 | 5,100 | 4 | 23 ft 11 in |
| Jay Flight 210QB | 6,000 | 4,275 | 6 | 25 ft 8 in |
| Jay Flight SLX 211MB | 6,000 | 4,225 | 6 | 24 ft 7 in |
Against the CM221RB: the Coachmen Apex Nano 203RBK is 4 ft shorter; the Colt 20DB is 3 ft shorter and sleeps 3 more; the Flying Cloud 23FB is 3 ft shorter and sleeps 1 fewer.
08 Common questions about the CM221RB
How much does the CM221RB weigh?
5,090 lb dry; 6,000 lb GVWR, the most it may weigh loaded.
How much can the CM221RB carry?
910 lb, 15% of its GVWR (median across 1,010 travel trailers here: 23%). A full fresh tank uses 299 lb of it.
What is the tongue weight of the CM221RB?
520 lb dry, 10% of the dry weight (median across 1,413 travel trailers here: 12%).
What size tow vehicle does the CM221RB need?
A tow rating of at least 6,000 lb, plus payload for the loaded tongue weight, passengers and cargo.
How many people does the CM221RB sleep?
It is rated to sleep 5. 2 of the 5 Connect Mini floorplans that publish a count sleep more.
What are the tank capacities on the CM221RB?
Fresh 36, grey 32, black 32 gallons. Off hookups, fresh water runs out first.
How long is the CM221RB?
27' 3" overall, tongue or pin box included.
From the figures above.
09 What this page publishes, and what it does not
14 of the 18 fields this catalogue tracks are published for the CM221RB. Not published: slide count, axle count, 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 15 recall campaigns against the Connect line (a recall and a complaint are not the same thing).
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 Connect line page.