If you want a permanent, vehicle-specific solution for accessing your truck bed that stays tucked away when not in use, choose keriolee Rear Bed Step; if you need a portable, universal step to reach high areas on any vehicle or store in your garage for occasional heavy lifting, choose Winwayroadfit Folding Tire Mounted.
• keriolee Rear Bed Step: Its biggest strength is the seamless integration with Toyota Tundra models (2014–2021), offering a factory-like retractable design that hides under the bumper. The trade-off is its lack of universality; it will not fit any vehicle outside that specific make and model range. This pick is for the dedicated Tundra owner who wants a permanent, clean aesthetic upgrade.
• Winwayroadfit Folding Tire Mounted: Its greatest advantage is extreme versatility, accommodating tires from 10.2 to 14.4 inches across cars, trucks, and RVs with adjustable height settings. The trade-off is its bulkier footprint and the fact that it requires manual mounting and unmounting every time it is used. This pick is for the DIY enthusiast or fleet manager who needs a tool that can be grabbed and stowed anywhere.
The keriolee Rear Bed Step is engineered specifically for one scenario: getting into the bed of a Toyota Tundra without straining your back or climbing on the bumper. If you own a 2014 through 2021 Tundra, this unit is designed to replace part numbers PT392-34140 and 75316-01A perfectly. It solves the classic problem of reaching a high tailgate by providing a sturdy platform that deploys from under the rear bumper. When you are done loading lumber, camping gear, or just closing the gate after a long day, the step retracts out of sight. This is not just a convenience feature; it is a safety improvement that keeps your hands free and prevents slipping on the bumper surface.
The construction focuses on durability and longevity for daily use. Built from enhanced high-quality aluminum, the step is resistant to wear and corrosion, which is essential for a component that lives exposed to road salt, mud, and weather elements. The surface features an anti-slip texture, ensuring you have traction even when wet or muddy. The dimensions of 8 x 14.6 x 12 inches mean it fits within the existing bumper geometry without protruding awkwardly when folded.
This product is ideal for the Tundra owner who values a "set it and forget it" approach. You install it once, and it becomes a permanent part of your truck's utility. However, if you drive a different brand, or if you frequently swap vehicles, this is not the right choice. It is also less suitable if you prioritize a completely clutter-free look above all else, as it does require a small amount of installation hardware visible near the bumper. But for anyone looking to permanently solve the access issue for their specific truck, the keriolee offers a robust, corrosion-resistant solution that feels like an original equipment manufacturer part.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-11-07 · 6 min read · Independent comparison
The Winwayroadfit Folding Tire Mounted step serves a completely different purpose. It is not attached to the vehicle permanently; instead, it clamps onto the tire itself. This makes it the ultimate tool for versatility. Whether you drive a compact car, a massive pickup, or an RV, as long as your tire falls between 10.2 and 14.4 inches in diameter, this step will work. It is designed for people who need to reach roof racks, access engine bays, load bikes, or climb into the back of a camper van without needing a ladder. The ability to adjust the height across three settings and the width across four positions means it can adapt to various tire profiles and user heights.
Portability is the core selling point here. Unlike a fixed bumper step, this unit folds down for storage. The raised anti-slip texture ensures safety when you are standing on it to reach something high up. Because it is not bolted to the chassis, you can easily take it with you. You might mount it on your truck to load a canoe, then remove it, fold it up, and stash it behind the seat or in a storage bin in your garage until the next job comes up. It is a piece of equipment that lives in your toolbox rather than on your vehicle.
This product is perfect for the multi-vehicle household or the person who uses their vehicle for diverse tasks beyond just commuting. If you frequently move heavy items, need to clean solar panels on an RV, or help neighbors with high-reach tasks, having a step that can be deployed instantly on almost any wheel is invaluable. The trade-off is the effort required to mount and dismount it each time. You cannot leave it installed permanently because it would drag on the ground or interfere with driving. If you prefer a step that is always there when you open the door, this might feel like too much work. But for someone who needs a reliable, adjustable, and storable access point, the Winwayroadfit is a powerhouse.
• Best for Permanent Installation → keriolee Rear Bed Step. It mounts directly to the bumper and stays put, requiring no setup before every use.
• Best for Universal Compatibility → Winwayroadfit Folding Tire Mounted. It fits a wide range of tire sizes across cars, trucks, and RVs, whereas the keriolee only fits specific Toyota Tundras.
• Best for Garage Storage → Winwayroadfit Folding Tire Mounted. Its foldable design allows it to be compacted and stored in a corner or trunk, while the keriolee is permanently mounted to the vehicle.
• Best for Daily Convenience → keriolee Rear Bed Step. With a simple kick-deploy mechanism, it is ready instantly every time you approach the tailgate.
• Best for High-Reach Versatility → Winwayroadfit Folding Tire Mounted. The adjustable height settings allow you to reach roofs, engine bays, and cargo racks that a fixed bumper step cannot access.
• Best for Corrosion Resistance → keriolee Rear Bed Step. Designed specifically for under-bumper exposure, it uses aluminum built to withstand constant road grime and moisture.
• Best for Heavy Load Capacity → Winwayroadfit Folding Tire Mounted.
• Best for Aesthetic Integration → keriolee Rear Bed Step. It tucks away cleanly under the bumper, maintaining the truck's lines, while the tire-mounted step is a visible accessory.
I would choose the keriolee Rear Bed Step if I owned a Toyota Tundra and wanted a seamless, permanent upgrade to my daily driver. The convenience of having a step that is always there, hidden when not needed, and built to last against the elements is unmatched for a single-vehicle owner. However, for my personal garage storage needs and a desire for a tool that works on multiple vehicles, I would opt for the Winwayroadfit Folding Tire Mounted. Its ability to fold flat and fit on almost any tire makes it the more practical choice for a general-purpose workshop or family garage where versatility trumps permanent installation.
No, the keriolee Rear Bed Step is designed exclusively for the Toyota Tundra models from 2014 to 2021 and will not fit other brands or years.
It fits tires ranging from 10.2 to 14.4 inches, so it should accommodate most standard RV and truck tires, provided they fall within that diameter range.
The keriolee step retracts automatically under the rear bumper of the Tundra, keeping it hidden and out of the way when you are not accessing the truck bed.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.