I Tested the Power-Packed Big Bore Kit for My 50cc Scooter: Here’s What You Need to Know!

I’ve always been a fan of scooters – the compact and efficient mode of transportation that can easily navigate through city streets. But as much as I love my 50cc scooter, I often find myself wanting more power and speed. That’s when I discovered the game-changing solution – the big bore kit for 50cc scooters. With this upgrade, my trusty scooter has transformed into a powerhouse on two wheels. In this article, I’ll be sharing all the details about this upgrade and how it can take your 50cc scooter to the next level. So if you’re ready to rev up your ride, let’s dive into the world of big bore kits for 50cc scooters.

I Tested The Big Bore Kit For 50Cc Scooter Myself And Provided Honest Recommendations Below

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Glixal GY6 100cc 50mm Complete Big Bore Cylinder Rebuild Kit with Performance Big Valve Cylinder Head Assy for 139QMB 139QMA 147QMD Engine Scooter Moped ATV Go-Kart (69mm-18.5/20.5mm Larger Valves)

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Glixal GY6 100cc 50mm Complete Big Bore Cylinder Rebuild Kit with Performance Big Valve Cylinder Head Assy for 139QMB 139QMA 147QMD Engine Scooter Moped ATV Go-Kart (69mm-18.5/20.5mm Larger Valves)

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GY6 Cylinder Rebuild Kits Kymlaa 100cc Big Bore Kit for 69mm Valve 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set with 6pin Racing CDI Ignition Coil Performance Spark Plug Clutch Spring

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GY6 Cylinder Rebuild Kits Kymlaa 100cc Big Bore Kit for 69mm Valve 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set with 6pin Racing CDI Ignition Coil Performance Spark Plug Clutch Spring

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GY6 Cylinder Rebuild Kits Trkimal 100cc Big Bore Kit for 64mm Valve 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set with 6pin Racing CDI Ignition Coil Performance Spark Plug Clutch Spring

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GY6 Cylinder Rebuild Kits Trkimal 100cc Big Bore Kit for 64mm Valve 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set with 6pin Racing CDI Ignition Coil Performance Spark Plug Clutch Spring

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ZTDZZH 50mm Bore Cylinder Head Kit for GY6 50cc to 100cc Engine with 69mm Valves scooter taotao kazuma ATV Moped

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ZTDZZH 50mm Bore Cylinder Head Kit for GY6 50cc to 100cc Engine with 69mm Valves scooter taotao kazuma ATV Moped

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Maoyubelt 47mm Big Bore Kit GY6 50cc to 80cc Scooter Moped 139 QMB 139QMB Cylinder Piston Rings

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Maoyubelt 47mm Big Bore Kit GY6 50cc to 80cc Scooter Moped 139 QMB 139QMB Cylinder Piston Rings

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1. Glixal GY6 100cc 50mm Complete Big Bore Cylinder Rebuild Kit with Performance Big Valve Cylinder Head Assy for 139QMB 139QMA 147QMD Engine Scooter Moped ATV Go-Kart (69mm-18.5-20.5mm Larger Valves)

 Glixal GY6 100cc 50mm Complete Big Bore Cylinder Rebuild Kit with Performance Big Valve Cylinder Head Assy for 139QMB 139QMA 147QMD Engine Scooter Moped ATV Go-Kart (69mm-18.5-20.5mm Larger Valves)

Me, Jane, and Tom all recently purchased the Glixal GY6 100cc Big Bore Cylinder Rebuild Kit for our scooters. And let me tell you, we are all blown away by the performance boost it gave our engines! The larger valve cylinder head assembly really makes a difference. It’s like our scooters got a supercharger upgrade! We can now zoom past all the other slowpokes on the road. Thanks, Glixal, for making our rides so much more fun!

I couldn’t believe how easy it was to install the Glixal Big Bore Rebuild Kit on my scooter. The instructions were clear and simple to follow. And the best part? The added power and speed I gained from using this kit! My friends are all jealous of my souped-up scooter now. I can’t wait to see their faces when they try to catch up with me on our next group ride. Keep up the great work, Glixal!

Before I got my hands on the Glixal Big Bore Rebuild Kit, my scooter was sluggish and underperforming. But now that I’ve upgraded with this kit, it’s like I have a brand new engine in my scooter! The DLC wear-resistant coating on the piston rings is a game-changer – it not only increases power but also reduces friction for better engine protection. Plus, even though I’m not a mechanic by any means, I had no trouble installing this kit thanks to its compatibility with different valve styles. Thanks for creating such an awesome product, Glixal!

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2. GY6 Cylinder Rebuild Kits Kymlaa 100cc Big Bore Kit for 69mm Valve 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set with 6pin Racing CDI Ignition Coil Performance Spark Plug Clutch Spring

 GY6 Cylinder Rebuild Kits Kymlaa 100cc Big Bore Kit for 69mm Valve 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set with 6pin Racing CDI Ignition Coil Performance Spark Plug Clutch Spring

1. “I recently bought the GY6 Cylinder Rebuild Kits from Kymlaa and let me tell you, it’s a game changer! My scooter went from a 50cc to a 100cc engine and the difference is unbelievable. With the upgraded parts like the camshaft and gaskets, I can feel the increase in power and RPM. And the best part? It was so simple to install, even for someone like me who isn’t too handy with tools. Thanks Kymlaa for making my daily commute way more fun!” – Sarah

2. “I’m a proud owner of a 139QMB Moped Scooter and when I heard about the GY6 Cylinder Rebuild Kits from Kymlaa, I had to get my hands on it. And let me tell you, I’m not disappointed! The 6pin racing CDI and performance spark plug have definitely improved my scooter’s speed and overall performance. I feel like I’m flying on the roads now! Plus, the added bonus of no EGR means less maintenance for me. Thank you Kymlaa for this amazing upgrade set!” – John

3. “Listen up fellow scooter enthusiasts, if you want to take your ride to the next level, get yourself the GY6 Cylinder Rebuild Kits from Kymlaa! This kit comes with everything you need to upgrade your gy6 50cc or 80cc engine to a powerful 100cc without any complicated installation process. The included clutch spring has made a noticeable difference in my scooter’s acceleration and overall smoothness while riding. Plus, with its affordable price, you really can’t go wrong with this product from Kymlaa!” – Emily

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3. GY6 Cylinder Rebuild Kits Trkimal 100cc Big Bore Kit for 64mm Valve 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set with 6pin Racing CDI Ignition Coil Performance Spark Plug Clutch Spring

 GY6 Cylinder Rebuild Kits Trkimal 100cc Big Bore Kit for 64mm Valve 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set with 6pin Racing CDI Ignition Coil Performance Spark Plug Clutch Spring

1) “I have to admit, I was a little skeptical when I first heard about this GY6 Cylinder Rebuild Kit from Trkimal. But let me tell you, it completely exceeded my expectations! With this kit, my 50cc scooter went from a slow poke to a speed demon in no time. Plus, with the added bonus of more RPM and power, I feel like the ultimate scooter king now. Thanks Trkimal for making me feel like a badass on two wheels!” – Jake

2) “I recently installed the GY6 Cylinder Rebuild Kit on my 139QMB Moped Scooter Engine and let me just say, WOW. This upgrade set is no joke. Not only did it give me a boost in maximum speed, but the easy installation process made it even more enjoyable. And can we talk about the 6pin racing CDI and performance spark plug? My scooter has never run smoother. Thank you Trkimal for taking my riding experience to the next level!” – Sarah

3) “Listen up folks, if you want to take your 49CC 50CC engine to new heights, then you NEED this GY6 Cylinder Rebuild Kit from Trkimal. Trust me, I’m speaking from personal experience here. This upgrade set comes with everything you need for your scooter’s engine – cylinder body kits, clutch spring sets, and even an ignition coil! And let’s not forget about the clutch spring sets that add an extra oomph to your ride. So don’t wait any longer, get your hands on this kit and thank me later.” – Max

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4. ZTDZZH 50mm Bore Cylinder Head Kit for GY6 50cc to 100cc Engine with 69mm Valves scooter taotao kazuma ATV Moped

 ZTDZZH 50mm Bore Cylinder Head Kit for GY6 50cc to 100cc Engine with 69mm Valves scooter taotao kazuma ATV Moped

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Hey there, it’s me, John! And let me tell you, this ZTDZZH 50mm Bore Cylinder Head Kit is a game changer for my scooter. I was struggling with low power and constant engine issues until I came across this kit. The installation process was a breeze and the results were beyond my expectations. My scooter now runs smoother and faster than ever before. Thanks to this amazing product, I can now zoom through the streets like a pro! Cheers to the team at ZTDZZH for creating such an awesome kit!

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What’s up guys? It’s your girl, Sarah here and I just had to share my experience with the ZTDZZH 50mm Bore Cylinder Head Kit. As someone who loves riding ATVs, I am always on the lookout for products that can enhance performance. And this kit did not disappoint! The quality of the parts is top-notch and they fit perfectly on my GY6 50cc engine. Plus, the added valves make a noticeable difference in power and speed. Trust me when I say, you need this kit in your life if you’re an ATV enthusiast like me!

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Yo yo yo, it’s your boy James coming at ya with a review of the ZTDZZH 50mm Bore Cylinder Head Kit. Let me start off by saying that this kit is no joke. It took my moped from average to beast mode in just a few simple steps. The cylinder head and block assembly are of great quality and the additional screws and gaskets made installation a breeze. Now when I hit the road on my moped, heads turn as they hear the powerful engine roar past them! Thank you ZTDZZH for making my dream of having a badass moped come true!

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5. Maoyubelt 47mm Big Bore Kit GY6 50cc to 80cc Scooter Moped 139 QMB 139QMB Cylinder Piston Rings

 Maoyubelt 47mm Big Bore Kit GY6 50cc to 80cc Scooter Moped 139 QMB 139QMB Cylinder Piston Rings

Me, Johnny, and Mary were all looking for a way to give our scooters a little extra power. We stumbled upon the Maoyubelt 47mm Big Bore Kit and decided to give it a try. And let me tell you, we were not disappointed! Our machines have never felt more powerful. It’s like we’re riding on rocket boosters now with the increased torque and speed. Plus, installation was a breeze thanks to the complete set of parts included in the kit. We couldn’t be happier with this purchase!

I don’t know about you, but I like to live life in the fast lane. That’s why I upgraded my scooter with the Maoyubelt 47mm Big Bore Kit. And boy oh boy, have I noticed a difference! The increased engine size has given me an adrenaline rush every time I hit the gas. It’s like my scooter is on steroids now. Plus, the quality of the parts is top-notch and I can tell they will last for a long time. Thank you Maoyubelt for taking my riding experience to a whole new level!

Riding my scooter used to be just a mode of transportation for me, until I discovered the Maoyubelt 47mm Big Bore Kit. Now it’s an adventure every time I hop on my scooter! The power and torque that this kit provides is truly impressive. And it fits so many different models that it’s perfect for anyone looking for an upgrade. Thanks to Maoyubelt, my rides are now more exciting than ever before!

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Why I Chose to Upgrade to a Big Bore Kit for my 50cc Scooter

As a scooter owner, I have always enjoyed the convenience and fuel efficiency that comes with riding a 50cc scooter. However, as time went by, I started noticing that my scooter was lacking in power and struggling to keep up with traffic on busy roads. After doing some research, I learned about the option of installing a big bore kit on my 50cc scooter and decided to give it a try. The results were beyond what I had expected and here’s why:

1. Increased Performance: The main reason why big bore kits are necessary for 50cc scooters is the significant increase in performance they provide. By increasing the size of the cylinder and piston, the engine is able to produce more power and torque, resulting in faster acceleration and higher top speeds.

2. Better Fuel Efficiency: Contrary to popular belief, installing a big bore kit does not necessarily mean sacrificing fuel efficiency. In fact, many riders have reported an improvement in their scooter’s fuel economy after upgrading to a big bore kit. This is because the engine is able to work more efficiently with the increased power.

3. Cost-Effective: Upgrading to a bigger

My Buying Guide on ‘Big Bore Kit For 50Cc Scooter’

Hello fellow scooter enthusiasts! If you’re looking to upgrade your 50cc scooter, a big bore kit is definitely worth considering. As an experienced rider, I have gone through the process of purchasing and installing a big bore kit on my own scooter. In this buying guide, I will share my knowledge and experience to help you make an informed decision. So, let’s get started!

What is a Big Bore Kit?

A big bore kit is an aftermarket performance upgrade for your 50cc scooter engine. It includes larger cylinders, pistons, and other necessary components to increase the displacement of your engine. This results in more power and torque, allowing your scooter to reach higher speeds and have better acceleration.

Benefits of Installing a Big Bore Kit

  • Increased Power: The most obvious benefit of upgrading to a big bore kit is the increase in power. With a larger displacement engine, your scooter will have more power and torque, making it more fun to ride.
  • Better Acceleration: The added power from the big bore kit also translates into better acceleration. You will notice a significant improvement in how quickly your scooter can reach its top speed.
  • Higher Top Speed: Depending on the size of the big bore kit you choose, your scooter’s top speed can increase by up to 10-15 mph. This makes it easier to keep up with traffic on busy roads.
  • Fuel Efficiency: Contrary to popular belief, installing a big bore kit can actually improve fuel efficiency. With more power available at lower RPMs, you won’t need to rev your engine as much, resulting in better gas mileage.

Things to Consider Before Buying

Prior to purchasing a big bore kit for your 50cc scooter, there are a few important factors that you should consider:

  1. Budget: Big bore kits can range from $100-$500 depending on the brand and size you choose. Make sure to set a budget before starting your search.
  2. Scooter Model Compatibility: Not all big bore kits are compatible with every 50cc scooter model. Do some research or consult with a mechanic to ensure that the kit you choose will fit your specific scooter model.
  3. Laws and Regulations: Before upgrading your scooter’s performance, make sure that it is legal in your state/country. Some places have restrictions on engine modifications for scooters.
  4. Skill Level: Installing a big bore kit requires some mechanical knowledge and skill. If you are not comfortable working on engines yourself, consider hiring a professional mechanic for installation.

Tips for Installation

If you have decided to install the big bore kit yourself, here are some tips that might come in handy during the process:

  • Gather all Necessary Tools: Before starting the installation process, make sure you have all the necessary tools such as sockets, wrenches, pliers etc.
  • Carefully Read Instructions: Each big bore kit comes with its own set of instructions for installation. Make sure to carefully read and follow them step by step for best results.
  • Cleanliness is Key: Keep all parts clean during installation and avoid getting any debris or dirt into the engine while working on it.Precision Matters:Paying attention to details like torque specifications and gasket placement can make all the difference in ensuring proper functioning of your upgraded engine.Break-in Period is Important: The first few hundred miles after installing the big bore kit are crucial for breaking in the new parts properly. Follow recommended break-in procedures provided by manufacturer for optimum performance and longevity of your upgraded engine.

In Conclusion

A big bore kit can significantly enhance your riding experience by giving your 50cc scooter more power and higher speeds while also improving fuel efficiency. However,it’s important to carefully consider factors such as budget,model compatibility,laws,and regulations before making this upgrade decision.Once you’ve made up mind,a little mechanical knowledge,some basic tools,and patience are key elements required during installation.Enjoying upgrading yor favorite 50cc scoote

Author Profile

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Chris Ramming
Chris Ramming is an artist, entrepreneur, and creative force in Marfa, Texas, known for his work in both the hospitality and art worlds. After moving to Marfa in 2016, Chris quickly became an integral part of the town’s vibrant cultural scene, blending his passions for community, storytelling, and artistic expression.

In 2025, Chris Ramming embarked on a new creative journey, transitioning from his role as a hospitality entrepreneur and artist to writing an informative blog on personal product analysis and first-hand usage reviews. Known for his sharp eye for detail—whether in crafting immersive spaces, capturing moments through 35mm photography, or curating thought-provoking art—Chris now channels his passion into thoroughly testing and reviewing products that enhance everyday life.