Answering the need for durable, weatherproof ATV storage, this guide highlights top trunks and rear storage boxes designed for gear, helmets, and everyday trail essentials. The picks cater to riders who want easy access while seated, secure lockable storage, and compatibility with common racks. Best for long rides, family outings, or work on demanding trails, these options balance capacity with rugged construction. The following table lists five strong choices to compare at a glance.
| Product | Brand | Storage Capacity | Best For |
|---|---|---|---|
| ATV Trunk & Lounger | Kolpin | 31 gal (117 L) | Max capacity and dry interior |
| Black Boar ATV Rear Storage Box & Lounger | Black Boar | ~2 cu ft + additional upper and lower bins | Cushioned seating + dual storage |
| Kolpin Rear Trail Box – 93201 | Kolpin | Multiple helmets + extra space | Compact helmet storage with rigidity |
| Kimpex Outback 2.0 Trunk Rear | Kimpex | 2 helmets capacity | Rear trunk with helmet storage |
| Kimpex NOMAD Trunk | Kimpex | 2 MX Helmets | Durable rear trunk with helmet capacity |
ATV Trunk & Lounger by Kolpin
- Massive 31 gallon (117 liter) storage capacity for gear, clothing, or tools.
- Seamless hinge and gutter design helps keep the interior dry and dust-free.
- Durable roto-molded construction; made in the USA with global materials.
Best for riders who need maximum carry space behind the seat without sacrificing durability. The large interior is ideal for multi-day trips or work crews transporting bulky gear. A potential limitation is that it remains a single large cargo area—smaller items may shift without internal dividers.
Black Boar ATV Rear Storage Box & Lounger
- Combines comfort with storage through a cushioned rear lounger plus dual storage boxes.
- Universal compatibility with most tubular racks; includes mounting hardware and access to keys inside the unit.
- Storage split: two large bins totaling approximately 2 cubic feet, plus a lower lockable section and an upper reachable bin.
Best for riders who want a seated, comfortable ride while carrying mid-sized gear. It’s especially useful for hot-weather trips when you want quick access to essentials from a seated position. A caveat is that availability of interior dividers may vary by model; verify the exact configuration before purchase.
Kolpin Rear Trail Box – 93201
- Contoured design minimizes sight obstruction while operating the ATV.
- Lockable box fits up to two XL helmets with extra storage room.
- Double-wall lid construction provides rigidity and supports optional rack accessories.
Best for riders prioritizing helmet storage with a streamlined profile. This option suits riders who want secure, lockable space for gear and helmets on the back of the ATV. A caveat is that it’s optimized for specific helmet sizes; oversized or unusual helmets may not fit as expected.
Kimpex Outback 2.0 Trunk Rear
- Rear trunk positioned for helmet capacity (2 helmets).
- Dimensions: 42″ x 28″ x 17″ providing substantial room for riding gear.
Best for riders who need helmet-ready storage in a rear trunk with straightforward mounting. Choose this if you want a dedicated helmet-hauling box with a broad profile. A limitation is that it may require compatible mounting hardware depending on the ATV model.
Kimpex NOMAD Trunk
- Helmet capacity: 2 MX helmets; dimensions 43″ x 30″ x 17″.
- Heuristic storage with a roomy interior designed for rugged outdoor use.
Best for riders needing tall, wide rear storage with helmet capacity in a simple, robust trunk. Opt for this if you want generous space with a low-profile fit behind your ATV. A caution is that this trunk does not include heated grip integration or insulation in standard configurations.
Buying Guide — Key Considerations For ATV Trunks And Storage
What capacity do you truly need?
Consider your typical trips: day rides, weekend camping, or work tasks. For longer trips, prioritize trunks with 2–3 cubic feet or more of organized space. For helmet storage, ensure the interior’s dimensions accommodate your helmet size.
Material and durability
Look for roto-molded or double-wall lids and LDPE or tough polymer bodies. These materials resist impact, weather, and UV exposure while keeping gear dry. A tight lip seal is essential for rain protection.
Mounting compatibility
Check if the trunk suits tubular racks, flat racks, or specific ATV models. Some boxes require drilling or included hardware; confirm compatibility with your rack system and mounting style.
Security features
Lockable lids deter theft and protect gear when parked. Verify whether keys and locking mechanisms come with the unit or as optional accessories.
Access and usability
Consider whether you prefer a box you can access from the rear while seated, or if a separate cushioned seat with storage is more practical for your riding style. Some models offer dual compartments, while others emphasize large, single-space interiors.
Weatherproofing and insulation
Waterproof seals help keep contents dry in rain or mud. Note that most standard trunks are not insulated, so consider additional coolers or bags if you need to regulate temperature for food or gear.
Price vs. value
Quality trunks offer long-term durability and better protection. Compare capacity, lid rigidity, and fit with the total cost to determine value over time.
Practical setup tips
- Use internal organizers or bags to prevent gear from shifting on rough trails.
- Place frequently used items within easy reach for seated access.
- Test-fit helmets ahead of time to confirm capacity and clearance with the rack and seats.
FAQ
- Which ATV trunk is best for helmet storage? — Kolpin Rear Trail Box (93201) and similar helmet-capable trunks offer dedicated helmet storage with secure lids.
- Are these trunks waterproof? — Most trunks have weather-resistant seals, but not all are fully waterproof. Check seal design and user reviews for performance in heavy rain.
- Do these trunks fit all ATV racks? — Fit varies by model; verify compatibility with your rack type (tubular, flat, or molded racks) and mounting requirements.
- Can I install these trunks myself? — Many trunks are designed for DIY mounting, but some require drilling or professional installation to ensure a permanent fit.
- Is there a recommendation for long trips? — For longer trips, choose a trunk with the largest practical capacity and a secure locking system to protect gear overnight.
- What is the best combination for comfort and storage? — A trunk with a separate rear lounger provides seating plus secure storage, ideal for riders who mix riding with rest breaks.