Are you tired of the inconsistent stopping power from your aging drum brakes? I have compared these kits by analyzing the technical specs and widespread buyer feedback to help you decide. While there are many paths to better control, a few kits offer real peace of mind. I find that moving away from drums is the best way to gain reliable stopping power and consistent performance on the trail.
1. Front Brake Wheel Cylinders Shoes Kit for Honda TRX300 TRX300FW Fourtrax 300 4×4 1988-2000 (Left&Right), O.E.M# 45330-HC5-006 45310-HC5-006 06450-HC5-900
This kit earns its place by sticking strictly to the original factory design. If you prefer to keep your machine in original condition without modifying your wheels, this is your most logical path.
I believe this is the safest choice for those who want to avoid the compatibility headaches that come with disc conversions. It restores the factory feel without forcing you to change your wheel size.
Buyers appreciate that this kit requires no modifications to the existing hub assembly.
It serves as the primary choice for purists who want to maintain the classic 1988-2000 setup.
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2. Front Disc Brake Conversion Kit for Honda Fourtrax 300 Rancher 350 Foreman 400 450 Rubicon 500 Rincon 650 TRX 300 350 400 450 500 650(Only fit for 12" and above wheel/Not for OEM aluminum wheel)
This kit is intended for the rider who has already upgraded their wheels or plans to do so immediately. It serves the crowd that prioritizes universal fitment over a model-specific bolt-on experience.
In my view, you should only choose this if you are confident about your wheel clearance. Because it does not fit OEM aluminum wheels, it acts like a filter that forces you to commit to a steel rim upgrade.
Many buyers note that this kit is a practical solution for those running aftermarket 12-inch wheels.
The design is broad enough to cover a wide range of Honda utility models.
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3. Disc Brake Conversion Kit Front for Honda Fourtrax 300 4×4 TRX300FW 1992-2000 (Except 2×4 Edition)
The most interesting feature here is the precision engineering designed specifically for the 4×4 model. It avoids the broad, generic fitment of other kits to ensure the mounting brackets align perfectly with the 1992-2000 frame.
I find this level of focus comforting. When you move to a specialized part, you typically face fewer installation hurdles during the conversion process.
Users frequently report that the dedicated fit for the 4×4 edition simplifies the front-end upgrade.
It remains a top candidate for owners who want to avoid the guesswork of universal parts.
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4. JAVIK Front Disc Brake Conversion Kit for Honda Fourtrax 300 1992-2000 Rancher 350 2000-2006 Foreman 400 450 1995-2004 Rubicon 500 2001-2004 Rincon 650 2003-2005
The most common complaint regarding this kit involves the complexity of the instructions. While it covers a wide range of models, the installation process can feel like a puzzle for those who are not seasoned mechanics.
I think this trade-off is worth it if you have a fleet of different Honda models. It provides a versatile solution that saves you from tracking down separate parts for every machine in your garage.
Buyers mention that while the documentation is thin, the hardware quality is sufficient for the price.
It is a common choice for owners managing multiple generations of Foreman and Rubicon models.
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5. SuperATV Front Disc Brake Conversion Kit Compatible with Honda ATV Models (See Fitment) | Use with 12" Steel Wheels or Larger | Easy Install – No Welding or Modification Needed
When you compare this to the JAVIK kit, the difference in build quality and reputation is clear. It provides a dependable engineering standard that is often missing from less expensive, unbranded alternatives.
In my view, this is the most professional option available for a home garage upgrade. It avoids the common manufacturing defects that plague lower-tier parts, making it my top recommendation for performance.
Owners consistently rank this kit highly for the ease of installation and lack of required welding.
The fitment is widely documented, which reduces the risk of ordering the wrong components.
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6. ADV-NNB77 Front Disc Brake Conversion Kit for Honda TRX300FW TRX350FE/FM
This kit gained popularity because it serves as the entry-level ticket to disc braking. It is often the first choice for riders who want to upgrade on a budget but are wary of the higher costs associated with premium brands.
I would suggest approaching this with caution, as budget parts often come with looser manufacturing tolerances. It is a functional fix, but you should inspect the hardware closely before you finalize the install.
Most buyers appreciate the accessible price point for a complete conversion package.
Users often report that while the kit works, it may require some minor adjustments during the setup.
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Choosing Between Them
I recommend the SuperATV conversion kit as your best choice because it provides the most dependable engineering in a market filled with questionable parts. While the other options, like the TRX300FW specific kit or the budget-friendly ADV-NNB77, serve niche needs, the SuperATV option balances ease of use with long-term reliability. I firmly believe you will have the fewest issues with this set during your install.
Please remember that moving to disc brakes almost always requires you to switch to 12-inch steel wheels. Trying to clear these calipers with your stock 11-inch rims is like trying to force a square peg into a round hole, as they will collide instantly. Always verify your current wheel setup before you commit to any disc brake conversion.
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