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Adding a second rider to a four wheeler usually ends the same way: someone perches on a bare metal rack, grips whatever is nearby, and spends the whole trail braced for a bounce. The fix is a proper rear seat that bolts to your rack, carries real cushioning, and keeps your passenger from sliding forward when you hit the brakes. This guide covers exactly what separates a seat that survives a full season of mud and washboard trails from one that rattles apart by August.
I’m Min — the founder and writer behind Gadgets Feed. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
Your passenger’s comfort on the trail starts with one thing: whether the seat actually fits your machine. Check your rack type first — tubular steel or composite plastic — because a mismatched mount is the fastest way to a return. The picks below range from dedicated Can-Am passenger assemblies to universal rack pads that bolt on anything. This breakdown of the best 4 wheeler back seat covers it.
Our Picks at a Glance
How To Choose The Best 4 Wheeler Back Seat
A rear seat on a four wheeler takes a beating that a car seat never sees. It gets soaked, dusted, bounced, and leaned on by a passenger who has no door and no seatbelt unless you added one. That is why the rack it mounts to matters more than the brand name on the cushion.
Start With Your Rack Type, Not The Cushion
Tubular racks are round steel bars, and most U-bolt or clamp-style seats grab them easily. Composite racks are the molded plastic panels on machines like the Polaris Sportsman, and they are the single most common fitment headache in this category. If your four wheeler has a composite rear rack, look for a seat that either lists composite compatibility or ships with enough bracket hardware to drill and bolt through the panel.
Foam Thickness And Pad Size Decide Passenger Comfort
A thin pad over bare metal bars transfers every washboard bump straight into your passenger’s spine. Look for clearly stated foam thickness — 2 inches is the common benchmark for a backrest — and a pad long enough to cover the rack surface your passenger actually sits on. A short pad leaves metal exposed at the edges where knees and elbows land.
Backrest Or Flat Cushion
A flat rack pad gives you a softer place to sit. A backrest adds a vertical padded panel behind the passenger’s back, and most of them fold down flat so you can still strap a cooler or chainsaw to the rack when riding solo. If your passenger is a child or an adult on a long trail ride, the backrest is the difference between a two-hour ride and a two-hour endurance test.
Hardware Quality Is Where Cheap Seats Fail
Crush nuts that will not crush, U-bolts too short for a thick rack, and offset peg holes show up again and again in owner feedback. Budget a trip to the hardware store for stainless bolts and washers if you are mounting to a plastic rack, and check whether the seat includes the specific bits and brackets your machine needs.
Quick Comparison
| Model | Best For | Type | Mount Style | Weight | Amazon |
|---|---|---|---|---|---|
| Can-Am OEM Passenger Seat Assembly for Ryker★ Best Overall | Ryker owners going two-up | Full OEM seat assembly | MAX Mount required | 3 pounds | Amazon |
| Guide Gear ATV Lounger Seat with StorageBest Storage Seat | Trail riders carrying two helmets | Lounger seat with cargo box | Four U-bolts | 25 pounds | Amazon |
| Black Boar ATV Rear Storage Box & Lounger SeatRanch Work Ready | Ranch work and gear hauling | Lounger seat with dual boxes | Tubular rack mounted | — | Amazon |
| Great Day Rumble Seat | UTV beds needing two extra riders | Bed-mounted two-seat unit | Quick-detach brackets | — | Amazon |
| Yutrax ATV Backrest | Riders who fold the backrest for cargo | Adjustable backrest | Tube or composite rack hardware | 9.84 pounds | Amazon |
| KEMIMOTO ATV Backrest | Quiet rides over rough terrain | Steel-frame backrest | Universal bracket | 4.04 kg | Amazon |
| KUAFU ATV Backrest Adjustable Seat Back Cushion | Back support on a tight budget | Foldable backrest with pocket | Seat mount, screws | 4.83 kg | Amazon |
| KEMIMOTO ATV Rack Pad | Soft cushioning for a rear rack | Rack pad cushion | 7 hook-and-loop fasteners | 1.5 kg | Amazon |
In‑Depth Reviews
1. Can-Am OEM Passenger Seat Assembly for Ryker, 219400842
Our pick — over 4.5★ from 450+ verified ratings; the strongest balance of quality and price.
The factory-built passenger conversion that turns a solo Ryker into a genuine two-up machine.
If you ride a Can-Am Ryker, this is the only rear seat on this list that was engineered by the people who built your machine. It arrives as a complete kit with handles and retractable pegs, and it makes the switch from single to double seating in minutes rather than an afternoon. The pegs are not just footrests — flipping them out tells the Ryker’s stability system (VSS, the onboard computers that manage how the trike leans and grips) that a passenger is aboard, so the machine recalibrates itself automatically.
This is an OEM part (made by BRP to the same spec as the seat that came on the bike), so it locks into the factory mount without a fight. Buyers report it installs in around 10 minutes and fits the Ryker Rally perfectly. The MAX Mount (part 219400800) is required for installation and is not included, so factor that in if you do not already run one. At 3 pounds and 25 x 18 x 7 inches, it is far more compact than the rack-mounted loungers further down this list — the Yutrax backrest, for comparison, tips the scale at 9.84 pounds.
Owners rave about the build quality, but comfort and fit draw mixed reactions — some passengers find it comfortable and perfectly sized, while taller riders find it slightly tight for long touring distances. It is also one of the pricier ways to add a second seat, and buyers openly acknowledge that. If your passenger is a kid or an average-sized adult doing day rides, a factory part that locks into the OEM mount and slides in without a fight is hard to argue with.
What Earns Its Spot First
- Complete conversion kit with handles and retractable pegs included
- Pegs flip out to trigger VSS passenger calibration automatically
- Same material as the stock seat, so finish and fit match the machine
- Threaded holes ready for adding a backrest later
The Mount Caveat You Must Budget For
- MAX Mount (219400800) required and sold separately
- Comfort and fit get mixed feedback — snug for larger passengers
- Premium-tier pricing for an accessory
The Ryker owner’s answer: Reach for this if you ride a Can-Am Ryker and want a factory-engineered two-up conversion that calibrates itself.
Wait a moment if: you ride a conventional quad with a tubular rack — this seat is built for the Ryker platform only, and a universal rack seat is your fit.
2. Guide Gear ATV Lounger Seat with Storage, Large Cushion, Padded Backrest, Cargo Box, Helmet Holder
A passenger seat that doubles as a cargo bay big enough to swallow two helmets.
Most rear seats stop at cushioning. This one keeps going. Behind the padded backrest sits a storage compartment sized for two helmets, and the hatch opens extra wide with two latches plus space to hang a padlock on the rear. It mounts to most ATV tubular racks with four U-bolts and sealing washers, and every fixture comes in the box.
The build is what wins people over. The body is heavy-duty UV-stabilized polyethylene — the same tough molded plastic used in outdoor equipment that has to survive sun and rain without going chalky — and at 25 pounds it is substantial enough to sit still on rough ground. The seat cushion itself is 12.5 inches wide, and families with young passengers report it works well for kids, including a five-year-old with special needs who rides comfortably without trying to climb out. Comfort and quality are the two things owners bring up again and again. Installation, though, splits opinion: some bolt it up in about 20 minutes, while others find the included U-bolts too short for a thick rear rack and the mounting awkward on certain machines. Riders on a Polaris 500 HO have noted the seat sits at too upright an angle and needed a shim to level out properly.
Against the Can-Am above, this is a different animal entirely — that one is a factory-fit specialty part for one machine, this is a universal cargo-and-seat unit that fits a broad range of racks. If you want the passenger carried and the gear stowed in one piece, nothing else here does both.
Where the value sits: the combination of a lockable, helmet-sized compartment and a padded lounger backrest makes this the practical choice for anyone who rides with a passenger and gets tired of bungee-cording bags to the rack.
Fitment homework required: universal never means universal. Measure your rear rack and plan for a possible hardware-store run for longer U-bolts, especially on composite racks.
Buy this when: you want your passenger seated and your cargo locked down in a single bolt-on unit.
Think twice if: you ride a low-power machine with a plastic rack and no patience for leveling shims.
3. Black Boar ATV Rear Storage Box & Lounger Seat, 66014
Two lockable cargo bins with a twelve-inch-wide seat bolted on top — built for work, not just joyrides.
Storage is the whole pitch, and the numbers back it up. This lounger carries roughly 2 cubic feet of cargo split across two bins: a lower bin with 1½ cubic feet of sealed, lockable space and an upper bin holding ½ cubic foot within reach while you are still seated. An integrated stainless steel lock with keys covers the lower compartment, so tools, fencing supplies, or animal feed do not ride home with a stranger.
The seating side is built for bodies, not just backsides. The main cushion measures 12 inches by 20 inches, with a 15 by 8 inch lumbar pad below and a 14 by 5 inch upper back pad above. Owners doing real ranch work on Honda Foreman ATVs describe it as rugged and roomy enough for fencing jobs, animal treats, extra clothing, and the occasional extra person.
What clients mention most is the capacity — the bins earn the top praise in owner feedback — followed closely by durability. The catch is the mounting. Some Grizzly riders found the included U-brackets too small for a 2021 rear rack and had to buy one locally. Others had to get creative with the attachment. If those brackets line up with your rack, this is the most complete work-and-ride setup in the mid-tier.
For the working rider: choose this if you need lockable, sealed cargo space that a passenger can sit on top of without losing reach to the upper bin.
Be ready to adapt: count on checking your U-bracket fit before the first ride — several owners needed a hardware-store fix.
4. Great Day Rumble Seat – Standard Black – UVRS100BL
Turns a two-person UTV bed into a four-person adventure rig with seats facing the trail behind you.
This is the odd one out on the list, and the most capable if your machine is a side-by-side rather than a quad. It is a bed-mounted seat unit that adds two extra adult seats to a UTV, with the passengers facing the rear. The frame is built from 1 inch heavy-duty aircraft aluminum and finished in a black powder-coat enamel, and it carries a stated 300 pound weight capacity. Cushioned pads are covered in 600 denier PVC-coated polyester, and the included safety belts must be worn whenever the seats are occupied.
It fits popular UTV brands — Polaris, Kawasaki, Yamaha, Kubota, Club Car, Arctic Cat, Cub Cadet, and Bad Boy MTV — as long as the bed measures 30 by 30 by 12 inches or larger. Installation uses quick-detach brackets, so you can pull the whole assembly out when you need your bed back. Owners mention the frame runs sturdy and secure, and kids in particular take to riding through trees and mud in the rear-facing seats. The recurring gripe is noise: the bracket rattles and clanks against the bed while riding, which is worth knowing if quiet trail cruising matters to you. Some also found the quick-release pin holes slightly off and had to drill them out, and the supplied track bolt was long enough on one machine to risk contacting a coolant hose above the engine.
Set against the Can-Am seat, these do completely different jobs — that one carries a single passenger on a three-wheeled Ryker, this one carries two additional riders on a four-wheeled UTV, and only the Rumble Seat disables your bed’s tilt function while it is installed.
The family-hauler case: if your UTV seats two and your weekend crew is four, this is the only pick here engineered to carry the whole group with safety belts included.
Hardware reality check: budget for a few drilled-out holes and possibly a shorter mounting bolt — it is a universal-fit product across many bed designs, not a machine-specific part.
Best choice if: you run a side-by-side with a bed 30 by 30 by 12 inches or larger and want two more seats you can strip off the machine in minutes.
Not for you if: you ride a two-wheel-rack quad — there is nothing here to bolt to.
5. Yutrax ATV Backrest, 1 Pack
The backrest that folds flat when you need your rack back for a cooler or a chainsaw.
Three positions of recline, a 2 inch thick cushion, and a fold-flat hinge — this is the design that solves the solo-versus-passenger conflict without unbolting anything. When nobody is riding behind you, the backrest drops flat so you keep your full rack for hauling. When it is up, customers note there is still room to strap a cooler or chainsaw behind it. A zippered storage pouch on the back holds gloves and small items.
At 9.84 pounds it is the heaviest backrest on this list, and unlike the 3 pound Can-Am seat above, that weight is the point — it is a steel-and-hardware assembly meant to stay put. It measures 22 x 25 x 13 inches and ships with hardware for both tube racks and Polaris-style composite racks, which is a real advantage over seats that only fit steel bars. Owners praise the mounting options and the sturdiness, and one 2002 Yamaha Kodiak 400 rider had to move the backrest pivot back one hole set to dial in the position, which is exactly the kind of adjustment the design allows. The recurring gripe: it can sit a little too far forward on some wheelers from the start, and on a 2019 Sportsman 450 installation requires removing the rack and drilling holes.
The warning decal on this one confuses people — one buyer could not figure out why a backrest would carry a caution about riding while not running. That aside, this is the backrest for someone who wants passenger support part of the time and a clear rack the rest of the time.
Why Riders Keep This One
- Folds flat to preserve full rack hauling space
- Ships with hardware for tube racks and Polaris composite racks
- 2 inch thick cushion with 3-position recline
- Rear storage pouch keeps small items off the ground
Before You Commit
- Sits forward on some machines without repositioning the pivot
- Heaviest backrest on the list at 9.84 pounds
- Some installations require rack removal and drilling
The split-use pick: grab this if you ride solo half the time and want your rack clear without pulling hardware.
Skip the drill-free dream: if you do not own a drill and a couple of wrenches, plan for a shop visit on composite-rack machines.
6. KEMIMOTO ATV Backrest, Heavy-Duty Steel Frame Four Wheeler Backrest
A steel-frame backrest engineered to stop the rattle that drives trail riders crazy.
The most interesting engineering decision here is the anti-noise design. A dual-triangle structure with a transverse connecting tube holds the frame rigid and cuts the metal-on-metal rattle that plagues cheaper backrests on washboard trails. The padded panel measures 440 x 340mm with 2 inch thick high-density foam, and the frame is black-coated steel built to resist impacts and corrosion in off-road conditions.
Practical details are thoughtful. A compact 165mm bottom bracket leaves room for storage boxes or seat bags behind it, two rear mesh pockets hold gloves, phones, and sunglasses within reach, and an anti-braking shoulder strap stops the backrest tipping forward under hard braking. It fits most recreation and utility ATV frames with metal or composite panels, and it is not intended for sport ATVs. Include all hardware and instructions, and it mounts to Polaris, Suzuki, Kawasaki, Can-Am, Grizzly, and Fourtrax machines.
What is worth knowing before you buy is the mounting hardware. The included crush nuts — the type that collapse and grip when you tighten them — did not bite for some riders with small allen wrenches, and two of them switched to bolts and washers on the underside instead. The recommended workaround for metal racks is to wrap the bars in electrical tape first so the brackets grip properly. Once the crush nuts are swapped for bolts, the backrest holds firm and stays quiet. It weighs 4.04 kg, and it is a lighter, quieter option than the 4.83 kg KUAFU below.
The low-noise choice: pick this if trail rattles annoy you and you want a padded backrest that stays silent over rough ground.
Prepare for hardware fiddling: the crush nuts are the weak link — budget a few stainless bolts and washers as backup.
7. KUAFU ATV Backrest Adjustable Seat Back Cushion for ATV Universal Foldable
An entry-level backrest that folds down for safety and stows your gloves in the meantime.
The pitch here is simple: solid back support for a passenger without spending much. The frame mixes steel and plastic, with a powder-coated steel surface to resist rust in heat and humidity, and a tilt angle you adjust to suit whoever is riding behind you. The whole backrest folds down flat, which the maker says makes riding safer and also frees your rack. A storage pocket on the back holds gloves and small items so they do not bounce off on the trail.
Installation guidelines call for screws and recommend professional fitting, which is a red flag worth heeding. Composite-rack owners have found it genuinely difficult to line the mount brackets up with anything on a Polaris rack, and those who got it working needed a drill and different bolts. At 4.83 kg it is heavier than the KEMIMOTO above at 4.04 kg, so it is not the lighter alternative — it is the cheaper one. And the durability picture is genuinely mixed: several riders report the cushion assembly breaking apart within six months, and a couple of owners had it fail twice when a passenger leaned back. That said, plenty of riders find it easy to install and perfectly adequate for the money, and the fold-flat design is a feature the flat rack pads cannot match.
Think of it as the lowest-commitment way to try a backrest. On a steel tubular rack with a light passenger, it does the basic job. On a molded plastic rack, the brackets do not line up without custom drilling.
The budget angle: this is the most affordable way to add a foldable backrest with a storage pocket, and for a light-duty passenger situation it does the basic job.
The honest caveat: composite-rack fitment is hit-or-miss and durability is the weakest point here — treat it as a starter backrest, not a lifetime part.
Right for: a rider on a steel tubular rack who wants back support and a folding panel without spending much.
Wrong for: a Polaris composite-rack owner, where the brackets simply do not line up without custom drilling.
8. KEMIMOTO ATV Rack Pad, Four Wheeler Rack Seat Cushion for Passenger Compatible with Fourtrax Foreman Rancher Kawasaki Brute Force Recon, Black
The no-drill answer — a soft rack cushion that straps onto your rear bars in minutes.
If you want the simplest possible way to make a bare rear rack comfortable, this is it. There is no bracket, no drilling, and no hardware bag to lose. Seven hook-and-loop fasteners wrap around your ATV or four wheeler composite rack and hold the pad in place, and the whole thing weighs 1.5 kg. The pad measures 37.8 inches long by 15 inches wide by 2.6 inches high, and it combines 5 CM of foam with 2 CM of EPE material — a layered foam sandwich built to soak up shock before your passenger feels it through the rack bars.
What keeps it at the top of the pad category is the build quality. The cover is 600D waterproof polyester PVC fabric, the kind of heavy woven material that wipes clean after a mud-soaked run, and it is designed to protect not just your partner but kids, pets, and fragile cargo. Reviewers point out it fits a Honda Rubicon 500 well and holds its shape ride after ride.
The limitations are honest and simple. It is a cushion, not a backrest — there is nothing behind your passenger’s back, so it is best for short rides or for someone who can brace against the rack itself. And because it relies on hook-and-loop rather than bolts, it is a softer solution in every sense. Riders who need real back support should look at the Yutrax or KEMIMOTO backrests above instead.
Where it wins: zero-drill installation with seven hook-and-loop fasteners makes this the fastest way to soften a rear rack, and the water-resistant 600D cover shrugs off mud and rain.
Honest limit: this is cushioning only — no backrest, so it suits casual two-up riding or protecting gear, not all-day passenger touring.
Best for: anyone who wants a comfortable rear rack in minutes with no tools at all.
Look elsewhere if: your passenger needs something to lean back against — a backrest belongs on your list.
Understanding the Specs
Rack Fitment and Mount Type
Tubular racks are round steel bars, and most seats grab them with U-bolts or clamps without modification. Composite racks are molded plastic panels, and they are the most common source of fitment trouble — brackets struggle to line up, and owners end up drilling and adding longer bolts. Before buying, identify which rack you have and check whether the seat lists that rack type or ships enough hardware to adapt. Machine-specific parts like the Can-Am seat sidestep this entirely by using the factory mount.
Foam Thickness and Pad Dimensions
Foam thickness determines how much shock reaches your passenger’s spine. A 2 inch thick cushion is the common benchmark on upright backrests, while layered pads combine materials to spread the load — the KEMIMOTO rack pad pairs 5 CM of foam with 2 CM of EPE for added shock absorption. Pad length matters too: a longer pad covers the metal bars near the edges where knees and elbows land, so a 37.8 inch pad covers far more rack surface than a short cushion.
FAQ
Will a universal ATV rear seat fit my four wheeler?
What is the difference between a rack pad and a backrest?
How much foam thickness do I need for a passenger seat?
Do I need a mounting bracket kit to install a rear seat on my ATV?
Can I use a rear seat on a composite rack four wheeler?
How much storage can an ATV rear seat box carry?
Is a folding backrest safer than a fixed one?
Can a rear seat carry children safely on a four wheeler?
Will a rear seat rattle while riding over rough terrain?
How long does a rear seat cushion typically last?
Final Thoughts: The Verdict
For most riders, the 4 wheeler back seat decision really depends on one question: does your passenger need a back to lean against, or just a soft place to sit? If you ride a Can-Am Ryker and want a factory two-up conversion that calibrates itself, the Can-Am OEM Passenger Seat Assembly is the pick. If you want cargo and comfort in one bolt-on unit for a conventional quad, reach for the Guide Gear ATV Lounger Seat with its two-helmet storage box. And if you just want your rear rack to stop punishing your passenger without drilling a single hole, the KEMIMOTO ATV Rack Pad straps on in minutes and does exactly that. Whichever you choose, match the mount to your rack type before you match the cushion to your budget.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of September 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
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