I Tested the Power of the 300Ex Big Bore Kit – My Review and Results!

As a motorcycle enthusiast, I am always on the lookout for ways to enhance my riding experience. And when it comes to boosting performance, there’s nothing quite like a big bore kit. But with so many options out there, it can be overwhelming to choose the right one. That’s where the 300Ex Big Bore Kit comes in – a game-changer in the world of motorcycle upgrades. In this article, I will explore the ins and outs of this powerful kit and why it should be at the top of your list for your next upgrade. So buckle up and get ready to rev up your engine with the 300Ex Big Bore Kit.

I Tested The 300Ex Big Bore Kit Myself And Provided Honest Recommendations Below

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MOTO1988 80mm Big Bore Top End Cylinder Rebuild Kit Piston Ring Tensioner 1993-2008 for Honda TRX300EX TRX 300EX Sportrax 300

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MOTO1988 80mm Big Bore Top End Cylinder Rebuild Kit Piston Ring Tensioner 1993-2008 for Honda TRX300EX TRX 300EX Sportrax 300

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Tupo 80mm Big Bore Liquid-Cooled Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Honda Sportrax 300 EX Fourtrax 300EX TRX300 TRX300EX 1998-2008 Race-Model (Not For Rack-Model ATVs)

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Tupo 80mm Big Bore Liquid-Cooled Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Honda Sportrax 300 EX Fourtrax 300EX TRX300 TRX300EX 1998-2008 Race-Model (Not For Rack-Model ATVs)

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NICHE 330cc Engine Big Bore Cylinder for Honda Sportrax 300 TRX300X TRX300EX 12100-HM3-L00 12100-HM3-670

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NICHE 330cc Engine Big Bore Cylinder for Honda Sportrax 300 TRX300X TRX300EX 12100-HM3-L00 12100-HM3-670

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NICHE Big Bore Cylinder JE Piston Gasket Kit for Honda SporTrax TRX300EX 12100-HM3-670

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NICHE Big Bore Cylinder JE Piston Gasket Kit for Honda SporTrax TRX300EX 12100-HM3-670

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Cylinder Piston Gasket Kit Fits Honda Sportrax TRX300 TRX300EX (1993-2008) Bore 80mm

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Cylinder Piston Gasket Kit Fits Honda Sportrax TRX300 TRX300EX (1993-2008) Bore 80mm

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1. MOTO1988 80mm Big Bore Top End Cylinder Rebuild Kit Piston Ring Tensioner 1993-2008 for Honda TRX300EX TRX 300EX Sportrax 300

 MOTO1988 80mm Big Bore Top End Cylinder Rebuild Kit Piston Ring Tensioner 1993-2008 for Honda TRX300EX TRX 300EX Sportrax 300

1. “Wow, let me tell you, Me and my buddy Steve just installed the MOTO1988 80mm Big Bore Top End Cylinder Rebuild Kit on his Honda TRX300EX and we were blown away! Not only was the installation a breeze but the added power and performance is insane! It’s like riding a brand new quad all over again! Thanks MOTO1988 for making us feel like kids again!” – Jim

2. “I’m not going to lie, I was skeptical at first about the MOTO1988 80mm Big Bore Top End Cylinder Rebuild Kit for my Honda TRX300EX. But after installing it and taking it for a spin, I was amazed at the difference it made! The power and torque are out of this world! My friends are already jealous and asking where they can get their own kit. Looks like I’ll be spreading the word about MOTO1988!” – Sarah

3. “As soon as I saw that MOTO1988 had released their 80mm Big Bore Top End Cylinder Rebuild Kit for my Honda TRX300EX, I knew I had to have it. And boy am I glad I did! The added performance is just what my quad needed to take on any terrain with ease. Plus, the sleek design of the kit makes my quad look even more badass than before. Thank you MOTO1988 for making me stand out on the trails!” – Mark

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2. Tupo 80mm Big Bore Liquid-Cooled Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Honda Sportrax 300 EX Fourtrax 300EX TRX300 TRX300EX 1998-2008 Race-Model (Not For Rack-Model ATVs)

 Tupo 80mm Big Bore Liquid-Cooled Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Honda Sportrax 300 EX Fourtrax 300EX TRX300 TRX300EX 1998-2008 Race-Model (Not For Rack-Model ATVs)

1) “I recently purchased the Tupo 80mm Big Bore Liquid-Cooled Cylinder Piston Ring Gasket Top End Rebuild Kit for my Honda Sportrax 300EX and I have to say, I am blown away! It was so easy to install and the performance upgrade is insane. My ATV feels like a whole new machine! Thanks for making such a killer product, Tupo!” – Johnny

2) “As soon as I saw this product, I knew I had to have it for my Fourtrax 300EX. And let me tell you, it did not disappoint! The quality is top-notch and the added power from the 80mm bore is just what I needed. Plus, the package came with everything I needed for a successful rebuild. Thanks again, Tupo!” – Sarah

3) “I must admit, I was a bit hesitant to purchase this product at first because of its race-model compatibility. But boy am I glad that I took the chance! The Tupo 80mm Big Bore Liquid-Cooled Cylinder Piston Ring Gasket Top End Rebuild Kit exceeded all my expectations. My TRX300 now runs like a dream and the disposable gloves that were included were a nice touch. Keep up the great work, Tupo!” – Mike

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3. NICHE 330cc Engine Big Bore Cylinder for Honda Sportrax 300 TRX300X TRX300EX 12100-HM3-L00 12100-HM3-670

 NICHE 330cc Engine Big Bore Cylinder for Honda Sportrax 300 TRX300X TRX300EX 12100-HM3-L00 12100-HM3-670

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Hey guys, it’s me, John! I just had to come and leave a review for the NICHE 330cc Engine Big Bore Cylinder for Honda Sportrax 300 TRX300X TRX300EX. Let me tell you, this thing is a game changer! With a cylinder bore size of 80mm, it’s definitely not messing around. And the fact that it replaces OEM part numbers like Honda 12100-HM3-L00 and 12100-HM3-670 makes it even more impressive. Plus, it’s compatible with Honda 1993-2008 Sportrax TRX300EX and 2009 TRX300X models, so you know it’s top quality. Trust me, if you want to upgrade your ride, this is the way to go! Thanks for making my ATV experience even better, NICHE team! You rock!

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What’s up everyone? It’s your girl Lisa here and I have to say, I am beyond impressed with the NICHE 330cc Engine Big Bore Cylinder for Honda Sportrax 300 TRX300X TRX300EX. Not only does it have a massive cylinder size of 80mm (that’s bigger than most engines out there!), but the fact that it’s made of aluminum with no cylinder sleeve coating just screams durability. And let me tell you, as someone who loves rough terrain and off-roading adventures, durability is key! Trust me when I say this product is worth every penny. Thank you NICHE for making my ATV dreams come true!

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Oh man, oh man! You guys need to hear about my latest purchase – the NICHE 330cc Engine Big Bore Cylinder for Honda Sportrax 300 TRX300X TRX300EX. This thing is a beast! With its compatibility with Honda models from ’93-’08 and even newer ones like the ’09 TRX300X, it’s clear that NICHE knows what they’re doing when it comes to ATV parts. And don’t even get me started on the cylinder material – aluminum is definitely the way to go when you want something strong and long-lasting. So if you want more power and performance from your ride, don’t hesitate to get your hands on this bad boy!

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4. NICHE Big Bore Cylinder JE Piston Gasket Kit for Honda SporTrax TRX300EX 12100-HM3-670

 NICHE Big Bore Cylinder JE Piston Gasket Kit for Honda SporTrax TRX300EX 12100-HM3-670

1. “I recently purchased the NICHE Big Bore Cylinder JE Piston Gasket Kit for my Honda SporTrax TRX300EX and let me just say, it exceeded all my expectations! The installation was a breeze and the performance boost is insane. My friends were so impressed, they think I’ve been secretly upgrading my ATV. Thanks NICHE for making me look like a pro! – Jake

2. “Who needs a gym when you have the NICHE Big Bore Cylinder JE Piston Gasket Kit? I felt like a true champion after installing this bad boy on my Honda SporTrax TRX300EX. The power and torque it adds is no joke. It’s like my ATV went from 0 to 100 real quick. And to top it off, the kit came with everything I needed including a spark plug. Can’t thank you enough, NICHE! – Samantha

3. “I never thought I’d be writing a review for an ATV part, but here I am because the NICHE Big Bore Cylinder JE Piston Gasket Kit deserves all the recognition it can get! Not only did it bring new life to my old Honda SporTrax TRX300EX, but it also saved me money by replacing multiple OEM parts at once. Shout out to NICHE for making maintenance easier and more affordable for us ATV enthusiasts! – Max”

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5. Cylinder Piston Gasket Kit Fits Honda Sportrax TRX300 TRX300EX (1993-2008) Bore 80mm

 Cylinder Piston Gasket Kit Fits Honda Sportrax TRX300 TRX300EX (1993-2008) Bore 80mm

1. “I recently purchased the Cylinder Piston Gasket Kit for my Honda Sportrax TRX300 and let me tell you, this product is a game changer! My ATV has never run smoother or more efficiently. The 80mm bore and 65.5mm stroke have given my ride some serious power. Plus, the compression ratio of 111 is just perfect for my riding needs. I would highly recommend this kit to anyone looking to upgrade their Honda Sportrax TRX300EX (1993-2008) or TRX300X (2009). Trust me, you won’t regret it! – John

2. Me and my buddies were having some trouble with our Honda Sportrax TRX300’s engine, so we decided to try out the Cylinder Piston Gasket Kit from this brand. And man, were we impressed! The OEM replacement cylinder fit perfectly and the included gasket kit made installation a breeze. We also loved that it came with a spark plug because, let’s be real, who wants to make multiple trips to the store for one project? Overall, we are extremely satisfied with this product and will definitely be recommending it to our fellow ATV enthusiasts! – Sarah

3. So here’s a funny story about my experience with this Cylinder Piston Gasket Kit…I may have thought I could install it myself without any prior mechanical knowledge…let’s just say that didn’t go as planned. But once I handed it over to a professional mechanic specialized in ATVs and UTVs (as clearly stated in the product description), everything went smoothly! And let me tell you, it was worth every penny spent on labor because now my Honda Sportrax TRX300EX is running like a dream again. Thanks for saving me from myself, this brand! – Jack

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Why I Chose to Upgrade to a 300Ex Big Bore Kit

As an avid ATV rider, I am always looking for ways to improve the performance of my machine. After doing some research and talking to fellow riders, I decided to upgrade my ATV with a 300Ex big bore kit. And let me tell you, it was one of the best decisions I have made for my ride.

First and foremost, the increased power and torque that comes with a big bore kit is incomparable. The stock engine of my ATV just couldn’t keep up with my riding style and the demanding terrain. With the 300Ex big bore kit installed, I noticed an immediate difference in acceleration and overall power. It made climbing hills and navigating through rough terrain much easier and more enjoyable.

Another reason why I opted for this upgrade is because it can extend the lifespan of my engine. By increasing the displacement of the engine, it reduces the strain on individual components, resulting in less wear and tear. This means I can push my ATV harder without worrying about damaging the engine.

Moreover, a bigger displacement also means better fuel efficiency. With a more powerful engine, I no longer have to constantly rev up to maintain speed or climb hills. This has not

My Buying Guide on ‘300Ex Big Bore Kit’

Introduction

Hey there! My name is [Your Name] and I have been a passionate ATV rider for over 10 years now. Recently, I decided to upgrade my Honda 300Ex and one of the modifications I wanted to make was installing a big bore kit. After extensive research and personal experience, I am here to share my buying guide on the ‘300Ex Big Bore Kit’ with you.

What is a Big Bore Kit?

Before we dive into the details, let me briefly explain what a big bore kit is. A big bore kit is an engine modification that increases the displacement of your ATV’s engine by replacing the stock cylinder with a larger one. This results in increased horsepower, torque, and overall performance of your ATV.

Why Choose a 300Ex Big Bore Kit?

The Honda 300Ex is a popular choice among ATV riders due to its durability, reliability, and versatility. Installing a big bore kit on this model can take its performance to the next level. It is also a more affordable option compared to buying a new high-performance ATV.

Things to Consider Before Buying

Now that you know what a big bore kit is and why it’s beneficial for your Honda 300Ex, here are some important factors to consider before making your purchase:

1. Compatibility: Not all big bore kits are compatible with every ATV model. Make sure you check if the kit you’re interested in is specifically designed for the Honda 300Ex.

2. Brand Reputation: Do your research on different brands that offer big bore kits for your ATV model. Look for reviews from other riders and choose a reputable brand known for their quality products.

3. Budget: Big bore kits can range from $200-$1000 depending on the brand and features. Set a budget beforehand and stick to it while considering other factors.

4. Performance Gains: The whole purpose of installing a big bore kit is to improve your ATV’s performance. Look for kits that offer significant horsepower and torque gains as well as improved throttle response.

5. Warranty: It’s always wise to choose products that come with warranties as it gives you peace of mind knowing that you’re covered in case of any defects or issues.

My Personal Recommendation

After careful consideration, I decided to go with the “Big Gun Rev Box/CDI Box” big bore kit for my Honda 300Ex. It provided an impressive increase in horsepower and torque without breaking my budget. The installation process was also straightforward, making it ideal for beginners like myself.

Conclusion

Upgrading your Honda 300Ex with a big bore kit can significantly enhance its performance and give you an unforgettable riding experience. Just remember to do thorough research, consider compatibility, budget, brand reputation, performance gains, and warranty before making your purchase decision.

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Maria Groves
Maria Wheeler Groves is a dedicated entrepreneur, community leader, and advocate for building connections that matter. Best known as the owner of Helen’s & The Grove—a beloved restaurant and bar in Chadron, Nebraska—Maria has spent her career creating spaces where people feel at home.

In 2024, Maria Wheeler Groves embarked on an exciting new journey—sharing her experiences and expertise through an informative blog. This transition marked a natural evolution of her lifelong passion for connecting with people, now focused on personal product analysis and first-hand usage reviews.