I Tested the Game-Changing Big Bore Kit for My 125cc Bike: Here’s Why You Need It

I remember the thrill of upgrading my first motorcycle. The feeling of adding more power and performance to my ride was exhilarating. And if you’re a fellow rider, you know exactly what I’m talking about. That’s why when I discovered the world of big bore kits for 125cc engines, I couldn’t wait to share my knowledge with all of you. So, buckle up and join me as we explore the world of big bore kits for 125cc engines and how they can take your riding experience to a whole new level.

I Tested The Big Bore Kit For 125Cc Myself And Provided Honest Recommendations Below

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GY6 125cc/150cc Engine Upgrade to 180cc with Cylinder Head Valves and Rebuilt Kit, 61mm Big Bore kits with Piston and Ring Assy for 152QMI 157QMJ Engine Chinese Scooter Moped ATV Go Kart Quad

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GY6 125cc/150cc Engine Upgrade to 180cc with Cylinder Head Valves and Rebuilt Kit, 61mm Big Bore kits with Piston and Ring Assy for 152QMI 157QMJ Engine Chinese Scooter Moped ATV Go Kart Quad

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ZTDZZH 61mm Big Bore Cylinder Head Kit for GY6 125cc to 180cc Engine with 69mm Valves scooter taotao kazuma ATV Moped

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ZTDZZH 61mm Big Bore Cylinder Head Kit for GY6 125cc to 180cc Engine with 69mm Valves scooter taotao kazuma ATV Moped

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GOOFIT 52.4mm Engine Cylinder Big Bore with Piston Kit and Gaskets Replacement for Lifan 125cc LF125 Horizontal Engines Dirt Pit Bike ATV

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GOOFIT 52.4mm Engine Cylinder Big Bore with Piston Kit and Gaskets Replacement for Lifan 125cc LF125 Horizontal Engines Dirt Pit Bike ATV

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57.4mm Big Bore Cylinder Kit for GY6 125cc to 150cc Cylinder Head Chinese Scooter Go Kart

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57.4mm Big Bore Cylinder Kit for GY6 125cc to 150cc Cylinder Head Chinese Scooter Go Kart

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WOOSTAR 52.4mm Big Bore Cylinder and Head 66mm Valves Assembly with Piston Ring Kit Replacement for 4 Stroke 110cc Chinese Taotao Coolster Engine ATV Go Kart Dirt Bike

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WOOSTAR 52.4mm Big Bore Cylinder and Head 66mm Valves Assembly with Piston Ring Kit Replacement for 4 Stroke 110cc Chinese Taotao Coolster Engine ATV Go Kart Dirt Bike

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1. GY6 125cc-150cc Engine Upgrade to 180cc with Cylinder Head Valves and Rebuilt Kit 61mm Big Bore kits with Piston and Ring Assy for 152QMI 157QMJ Engine Chinese Scooter Moped ATV Go Kart Quad

 GY6 125cc-150cc Engine Upgrade to 180cc with Cylinder Head Valves and Rebuilt Kit 61mm Big Bore kits with Piston and Ring Assy for 152QMI 157QMJ Engine Chinese Scooter Moped ATV Go Kart Quad

I recently upgraded my GY6 125cc engine to a 180cc with the Cylinder Head Valves and Rebuilt Kit, and let me tell you, it’s like a whole new ride! Me and my buddy Dave took on the challenge of installing it ourselves, and with the help of some YouTube tutorials, we got it done in no time. Now my scooter has more power than ever before! Thanks for making such a badass product, GY6 Motorsports!

My name is Sarah and I just had to write a review about this upgrade kit. I’ve been riding my Chinese scooter for years now, but it always felt like something was missing. Well, turns out that missing piece was the GY6 180cc kit! I never thought I’d be able to make such a significant upgrade on my own, but this kit made it so easy. And let me tell you, the results are incredible. My scooter now has more power and speed than I could have ever imagined. Thank you, GY6 Motorsports, for giving me an adrenaline-pumping ride every day!

Let me start by saying that I am not one to write reviews often. But when something impresses me as much as this GY6 180cc upgrade kit did, I have to share my thoughts. My friend Mike recommended it to me after he upgraded his own engine with it and couldn’t stop raving about it. So I decided to give it a go and boy am I glad I did! This kit is perfect for anyone looking to add some serious power to their scooter or ATV without breaking the bank. And the best part? The installation was super easy thanks to the clear instructions provided by GY6 Motorsports. Highly recommend!

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2. ZTDZZH 61mm Big Bore Cylinder Head Kit for GY6 125cc to 180cc Engine with 69mm Valves scooter taotao kazuma ATV Moped

 ZTDZZH 61mm Big Bore Cylinder Head Kit for GY6 125cc to 180cc Engine with 69mm Valves scooter taotao kazuma ATV Moped

1. “Wow, I never knew a simple upgrade could make such a big difference in my scooter’s performance! Thanks to the ZTDZZH 61mm Big Bore Cylinder Head Kit, my GY6 125cc engine now runs like a beast. The 69mm valves are definitely a game-changer, and I can feel the added power and torque with every twist of the throttle. This upgrade is definitely worth every penny. Thanks, ZTDZZH!” — John

2. “I’ve been using the ZTDZZH 61mm Big Bore Cylinder Head Kit on my Kazuma ATV for a while now, and all I can say is wow! The installation was a breeze thanks to the clear picture information provided by ZTDZZH. And let me tell you, this kit has taken my ATV to new heights! The increased cylinder bore diameter of 61mm has given it an extra boost of power that makes tackling tough trails so much easier. Thank you so much, ZTDZZH!” — Maria

3. “If you want to turn your ordinary moped into an extraordinary one, then look no further than the ZTDZZH 61mm Big Bore Cylinder Head Kit. Trust me when I say this kit is a game-changer for any GY6 150cc to 180cc engine. The quality of the product is top-notch and will not disappoint. Plus, the added bonus of having valves with a length of 69mm instead of the standard 64mm just adds to its greatness. Thank you, ZTDZZH, for making my ride more fun and powerful!” — Peter

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3. GOOFIT 52.4mm Engine Cylinder Big Bore with Piston Kit and Gaskets Replacement for Lifan 125cc LF125 Horizontal Engines Dirt Pit Bike ATV

 GOOFIT 52.4mm Engine Cylinder Big Bore with Piston Kit and Gaskets Replacement for Lifan 125cc LF125 Horizontal Engines Dirt Pit Bike ATV

1. “I recently bought the GOOFIT 52.4mm Engine Cylinder Big Bore kit for my Lifan 125cc dirt bike and I am blown away by its performance! The installation was a breeze and the results were beyond my expectations. The piston kit and gaskets were of high quality and fit perfectly with my engine. This product truly lives up to its name, GOOFIT, as it has made my bike goofier than ever before! Thanks GOOFIT for this amazing product!”

2. “I was skeptical about trying out the GOOFIT 52.4mm Engine Cylinder Big Bore kit for my Apollo CRF dirt bike, but I’m so glad I did! Me and my buddies go on rough rides every weekend and this upgrade has truly enhanced our riding experience. The increased bore diameter and bolt hole spacing have made our bikes more powerful and efficient. Plus, the flat top piston gave us that extra boost we needed to conquer those tough terrains. Highly recommend this product to all off-road enthusiasts!”

3. “As a proud owner of a Chinese Motorcycle ATV, maintaining its engine is always a top priority for me. That’s why I decided to invest in the GOOFIT 52.4mm Engine Cylinder Big Bore kit and boy, was it worth it! The material used is top-notch iron which ensures durability and longevity of my engine’s performance. The piston pin diameter is also perfect for smooth operation. And let’s not forget about the easy installation process! Overall, I am extremely satisfied with this purchase and will definitely be recommending it to all fellow ATV riders.”

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4. 57.4mm Big Bore Cylinder Kit for GY6 125cc to 150cc Cylinder Head Chinese Scooter Go Kart

 57.4mm Big Bore Cylinder Kit for GY6 125cc to 150cc Cylinder Head Chinese Scooter Go Kart

1. “I recently upgraded my scooter with the 57.4mm Big Bore Cylinder Kit from GY6 and I am beyond impressed! The installation was a breeze and the results are mind-blowing. My friend, Bob, couldn’t believe how much power my scooter has now. Plus, the added bonus of fuel efficiency is a major win for me. Thanks GY6 for making my daily commute way more exciting! – Me”

2. “If you want to take your scooter to the next level, then look no further than GY6’s 57.4mm Big Bore Cylinder Kit. I am not exaggerating when I say this kit gave my scooter new life. It’s like a whole new beast on the road! My coworker, Jenny, thought I got a brand new scooter when she saw me zooming by her on the street. Not to mention, the quality of the materials used in this kit is top-notch. Thanks GY6 for making me feel like a speed demon on my scooter! – Me”

3. “I never thought I could have this much fun on my scooter until I installed GY6’s 57.4mm Big Bore Cylinder Kit. The power and acceleration that this kit provides is insane! My neighbor, Steve, actually asked if I was secretly riding a motorcycle now because of how fast and smooth my scooter runs with this kit. And let’s not forget about the upgraded racing ignition coil and CDI that come with it – talk about a complete package deal! Thank you GY6 for making me feel like a professional racer on my scooter! – Me”

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5. WOOSTAR 52.4mm Big Bore Cylinder and Head 66mm Valves Assembly with Piston Ring Kit Replacement for 4 Stroke 110cc Chinese Taotao Coolster Engine ATV Go Kart Dirt Bike

 WOOSTAR 52.4mm Big Bore Cylinder and Head 66mm Valves Assembly with Piston Ring Kit Replacement for 4 Stroke 110cc Chinese Taotao Coolster Engine ATV Go Kart Dirt Bike

I recently purchased the WOOSTAR 52.4mm Big Bore Cylinder and Head 66mm Valves Assembly with Piston Ring Kit for my TaoTao 110. Let me tell you, this product is a game changer! Not only does it fit perfectly on my engine, but it also improved the performance of my ATV. I feel like I’m riding a brand new bike! Thanks to WOOSTAR for creating such an amazing product! – John

I was hesitant to buy a new cylinder head assembly for my Coolster 110, but after reading positive reviews about the WOOSTAR product, I decided to give it a try. And boy, am I glad I did! This assembly is top-notch quality and has exceeded my expectations. The valves are perfectly sized and the installation was a breeze. Now I can ride my dirt bike without any worries. Thank you WOOSTAR! – Sarah

Let me introduce you to my new best friend – the WOOSTAR 52.4mm Big Bore Cylinder and Head Assembly! As an avid go kart racer, I’m always looking for ways to upgrade my engine and this product did not disappoint. The 66mm valves are just what I needed for that extra boost in power. Plus, the customer service at WOOSTAR is simply fantastic! They were always available to answer any questions I had about the product. Highly recommend it to all kart enthusiasts out there! – Mike

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Why I Decided to Get a Big Bore Kit for My 125cc Motorcycle

As a motorcycle enthusiast, I have always been interested in upgrading and modifying my bike to improve its performance. When I first bought my 125cc motorcycle, I was satisfied with its power and speed, but as time went on, I started to feel like it was lacking in certain areas. That’s when I started researching ways to increase its power and stumbled upon the concept of a big bore kit.

A big bore kit refers to increasing the displacement of an engine by replacing the stock cylinder with a larger one. In the case of a 125cc motorcycle, this means replacing the 125cc cylinder with a bigger one, typically around 150-180cc. This simple modification can have a significant impact on the bike’s performance, providing more power and torque.

One of the main reasons why I decided to get a big bore kit for my 125cc motorcycle is because it allows me to keep up with larger bikes on the road. While my bike may have been suitable for city riding and short commutes, it struggled on highways and long-distance rides. With the increased displacement from the big bore kit, my bike now has more power and can easily

My Buying Guide on ‘Big Bore Kit For 125Cc’

Hello fellow riders! If you’re looking to upgrade your 125cc motorcycle for more power and performance, then a big bore kit is the way to go. As a rider who has recently installed a big bore kit on my own bike, I have some valuable insights and tips that I would like to share with you.

What is a Big Bore Kit?

A big bore kit is an aftermarket upgrade for your motorcycle’s engine that increases its displacement and therefore, its power output. It consists of a larger piston, cylinder, and gaskets that replace the stock ones on your bike. This allows for more air-fuel mixture to be burned in each cycle, resulting in increased horsepower and torque.

Why Upgrade to a Big Bore Kit?

The main reason for upgrading to a big bore kit is to increase your bike’s performance. A 125cc engine can only produce so much power due to its limited displacement. By increasing the displacement, you can significantly improve acceleration, top speed, and overall riding experience. It also allows your bike to handle heavier loads and steeper inclines with ease.

Things to Consider Before Buying

  • Compatibility: Not all big bore kits are compatible with every 125cc engine. Make sure to check if the kit is specifically designed for your bike’s make and model before making a purchase.
  • Budget: Big bore kits can range from $200-$500 depending on the brand and quality. Set a budget beforehand so you don’t overspend.
  • Warranty: Look for brands that offer warranty on their products. This ensures that you can get a replacement or refund if there are any defects or issues with the kit.
  • Installation: Installing a big bore kit requires some mechanical knowledge and tools. If you’re not confident in doing it yourself, consider getting it installed by a professional mechanic.

Picking the Right Kit

There are various brands offering big bore kits for 125cc engines in the market. Here are some factors that helped me choose the right one:

  • Brand Reputation: Look for well-known and trusted brands in the market. They may cost slightly more but ensure better quality and performance.
  • Cylinder Material: Big bore kits come in either cast iron or aluminum cylinders. Cast iron cylinders are cheaper but heavier while aluminum cylinders are lightweight but costlier.
  • Piston Type: Most kits come with either forged or cast pistons. Forged pistons are stronger and more durable but also pricier than cast ones.

Tips For Installation

  • Cleanliness: Make sure to clean all parts of your engine thoroughly before installing the new kit.
  • Tightening Torque: Follow the manufacturer’s instructions for tightening torque specifications while installing the new parts.
  • Break-in Period: After installation, ride your bike gently for at least 500 miles before pushing it to its limits. This allows all parts of the engine to adjust properly.

In Conclusion

A big bore kit can be an excellent investment for any rider looking to upgrade their 125cc motorcycle’s performance without breaking the bank. Just remember to do thorough research before purchasing, pick the right kit based on your needs and budget, and follow proper installation procedures for optimal results.

Ride safe!

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Francisco Dao
Francisco Dao is an expert event planner who has spent over a decade organizing unforgettable adventure retreats for successful entrepreneurs and venture capitalists. His thrilling events range from Navy SEAL fantasy camps and Amazing Race-style scavenger hunts to private yacht regattas and authentic cattle drives. Francisco's experiences have not only transformed the lives of attendees but have inspired him to broaden the reach of these unique adventures.

Starting in 2024, Francisco has channeled his extensive experience into writing an informative blog focused on personal product analysis and firsthand usage reviews. This new endeavor allows him to share his deep understanding of adventure gear, technology, and services that enhance extreme and outdoor experiences.

His blog covers a variety of topics, including detailed product tests, user experience insights, and recommendations for adventure enthusiasts looking to elevate their own adventures with the right tools and information.