If you want a rugged, American-made carrier built specifically for classic 4 and 5-bolt trailer rims with a fixed, heavy-duty footprint, choose RIGID HITCH INCORPORATED RHSC-20; if you need a versatile, adjustable mount that handles 6-lug wheels, offers higher weight capacity, and includes design tweaks to protect your hub from scratches, choose TOPSHINE Spare Tire Carrier.
• RIGID HITCH INCORPORATED RHSC-20: Its biggest strength is its specific engineering for 4 and 5-bolt rims on standard US trailer frames up to 3x4 inches, but it strictly excludes 6 or 8 bolt patterns and large tire sizes like 18.5 x 8.5. This pick is for owners of older trailers or boats with traditional rim configurations who prioritize a "Made in USA" build quality.
• This pick is for modern haulers needing a universal solution that fits wider beams and heavier loads without modification.
The Rigid RHSC-20 is a piece of equipment designed with a very clear purpose: securing spare tires on trailers where the bolt pattern is strictly limited to four or five bolts. If you are towing a boat or a utility trailer that uses the classic 4-bolt on 4-inch centers or the common 5-bolt variations found on many North American trailers, this unit is engineered to lock those wheels down securely. The manufacturer specifies that it accepts wheel sizes ranging from 8 to 15 inches, covering the vast majority of standard trailer tire diameters. However, there is a hard boundary here. You cannot use this carrier with 6 or 8 bolt rims, nor can you mount oversized tires like the 18.5 x 8.5 or 20.5 x 8 varieties. If your setup falls outside these specific parameters, this product simply will not function, regardless of how sturdy it feels.
Construction-wise, the RHSC-20 features a black powder coat finish, which suggests a focus on durability against the elements. Being manufactured in the USA often implies a certain level of quality control and adherence to domestic manufacturing standards, which appeals to buyers who value domestic production. The design is straightforward, lacking the complex adjustment mechanisms found elsewhere, which means there are fewer moving parts to fail over time. It is a solid, static solution for a specific set of constraints.
Who should buy this? You should buy the RIGID HITCH INCORPORATED RHSC-20 if you have a trailer frame that fits within the 3-inch width by 4-inch height limit and your spare tire uses a 4 or 5-bolt pattern. It is ideal for the enthusiast who wants a no-nonsense, heavy-duty mount that has been tested for compatibility with standard North American trailer rims. It is also a strong choice for those who prefer products made domestically and do not require the ability to swap between different lug patterns frequently.
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
Who should skip it? Skip this model immediately if your trailer uses a 6-lug wheel, as the product explicitly states it will not work with 6 or 8 bolt rims. Do not attempt to use it if your tire diameter exceeds 15 inches or if you are running those specific oversized 18.5 x 8.5 or 20.5 x 8 tires. If your trailer frame is wider than 3 inches or taller than 4 inches, this carrier will not clamp correctly. It is too rigid for users who need a single solution to handle a variety of different trailer types or changing wheel configurations.
The TOPSHINE Spare Tire Carrier takes a different approach, prioritizing adaptability and load handling over strict specificity. This unit is built to accommodate a much broader range of trailer wheels, supporting 4, 5, and even 6-lug setups. This makes it a powerful candidate for anyone whose trailer might have non-standard lug counts or who needs a single carrier that can be swapped between different vehicles. That weight limit is significant, offering peace of mind when carrying larger, heavier tires that might exceed the limits of lighter carriers.
Design features on the TOPSHINE unit show a thoughtful consideration for protecting both the tire and the vehicle components. The manufacturer highlights a unique design element where the height of the carrier is increased specifically to avoid scratching against the wheels during transport. Furthermore, the tapered design of the nut is intended to reduce friction and scratching against the hub itself. These small details suggest a focus on long-term preservation of the wheel assembly, which is a practical concern for frequent travelers. The installation process is described as quick and manageable with a standard wrench, indicating that the user does not need specialized tools or extensive mechanical knowledge to get the job done.
Who should buy this? You should buy the TOPSHINE Spare Tire Carrier if you need a universal fitment that handles 6-lug wheels alongside the more common 4 and 5-lug options. It is also the logical choice if your trailer beam dimensions vary, as the adjustable nature allows the width to fit beams up to 3.9 inches and heights under 5.6 inches. Users who appreciate corrosion-resistant materials and design features that prevent cosmetic damage to their hubs will find this option highly appealing.
Who should skip it? Skip this model if you strictly require a product marketed as "Made in USA," as the specifications list the manufacturer as TOPSHINE without that specific designation. While the adjustability is a strength, it might be considered a weakness if you prefer a fixed, unmovable structure that requires zero adjustment once installed. If you are using extremely small wheels below the standard ranges or have a frame that exceeds the 3.9-inch width limit, this carrier may not be suitable. It is also less ideal if you specifically want to avoid the potential complexity of an adjustable mechanism, preferring a one-piece solid mount instead.
• Best for 6-Lug Wheels: Only the TOPSHINE Spare Tire Carrier supports 6-lug patterns, making it the mandatory choice for those specific rims.
• Best for Classic 4/5-Bolt Patterns: The RIGID HITCH INCORPORATED RHSC-20 is optimized for the most common 4-bolt and 5-bolt configurations without requiring adjustment.
• Frame Compatibility Range: TOPSHINE adjusts to a wider range of beam widths (up to 3.9 inches) and heights (under 5.6 inches) compared to the fixed 3x4 inch limit of the RIGID HITCH.
• Tire Size Limitations: RIGID HITCH excludes specific large sizes like 18.5 x 8.5, whereas TOPSHINE focuses on general lug compatibility without listing those specific exclusions.
• Protection Features: TOPSHINE includes specific design elements like tapered nuts and increased height to prevent hub and wheel scratches, a feature absent in the RHSC-20 description.
• Origin Preference: If domestic manufacturing is a priority, the RIGID HITCH INCORPORATED RHSC-20 is the only option explicitly labeled as Made in USA.
• Ease of Installation: Both claim easy installation, but TOPSHINE emphasizes quick wrench-based setup with adjustable clamping, while RHSC-20 relies on a fixed fitment.
In my opinion, for the vast majority of users looking for a reliable dash cam accessory mount or a general tire carrier that balances versatility with strength, I would choose the TOPSHINE Spare Tire Carrier. The added design features that prevent scratching on the hub and wheel add a layer of care for your equipment that the basic RHSC-20 does not offer. While the RIGID HITCH INCORPORATED RHSC-20 is a fantastic product for its specific niche of 4 and 5-bolt users who want a simple, American-made fix, the TOPSHINE unit covers more bases and solves more problems in a single package.
You must ensure your trailer frame is no wider than 3 inches and no taller than 4 inches, as the RHSC-20 is built for frames up to those exact dimensions.
Yes, the TOPSHINE model features an adjustable design that fits various beam sizes, accommodating widths less than 3.9 inches and heights less than 5.6 inches.
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