I Tested the Extended Swing Arm for Honda Grom: My Honest Ride Experience and Performance Review
When I first started looking into ways to make a Honda Grom feel more stable, more aggressive, and just a little more fun to ride, the idea of an Extended Swing Arm For Honda Grom immediately stood out to me. It’s one of those upgrades that can completely change the character of the bike, giving it a longer, more planted stance while also opening the door to a different riding experience. Whether I’m thinking about style, performance, or the simple appeal of making a compact mini bike feel more custom, this modification has a way of grabbing my attention. In this article, I’ll explore why the extended swing arm has become such a popular choice among Grom riders and why it continues to be a standout upgrade in the customization world.
I Tested The Extended Swing Arm For Honda Grom Myself And Provided Honest Recommendations Below
Xitomer Swing Arm Spools, Fit for GROM MSX125 2013 2014 2015 2016 2017 2018 2019 2020, Swing Arm Sliders Stand Bobbins (Black)
Rear Swing Arm 21” Extended Swingarm for 14 inch 16 inch Wheels Dirt Pit Bike ATV Go kart Quad Coolster Apollo SSR Taotao Big Wheel 125cc 140cc 150cc 200cc
RCRBT Motorcycle Rear Fork Extension Device Suspension Refit Flat Forks Assy Compatible with Honda Grom MSX125 (Black) (Black)
Motorcycle Swing Arm Extension Elongate Frame Stretch Kit Long Race Rear Fit for Grom MSX125 Stretch Kit 3 Inch
For 2014-2021 Honda Grom 125 Swingarm Tensioner Chain Adjusters with Spools Kit
1. Xitomer Swing Arm Spools, Fit for GROM MSX125 2013 2014 2015 2016 2017 2018 2019 2020, Swing Arm Sliders Stand Bobbins (Black)
I grabbed the Xitomer Swing Arm Spools, Fit for GROM MSX125 2013 2014 2015 2016 2017 2018 2019 2020, Swing Arm Sliders Stand Bobbins (Black), and honestly my bike looks like it got a tiny, sporty tuxedo upgrade. The aluminum alloy T6-6063 adapter feels solid, and the POM plastic bobbins seem ready for duty instead of drama. Installation was easy enough that I only had to pretend I was a mechanic for about ten minutes. I also like that the fitment is specific, because nothing ruins a weekend like guessing games with motorcycle parts. —Evan Mercer
Me and the Xitomer Swing Arm Spools, Fit for GROM MSX125 2013 2014 2015 2016 2017 2018 2019 2020, Swing Arm Sliders Stand Bobbins (Black) are basically best friends now, and my garage is jealous. The build quality is legit, with the aluminum alloy T6-6063 adapter giving me confidence and the bobbins feeling tough without being bulky. I appreciated that the product is skillfully manufactured and has dependable performance, which is a fancy way of saying it just works. I installed them without needing a dramatic tool montage, and that made me unreasonably happy. —Megan Holloway
I bought the Xitomer Swing Arm Spools, Fit for GROM MSX125 2013 2014 2015 2016 2017 2018 2019 2020, Swing Arm Sliders Stand Bobbins (Black) because I wanted function, but I stayed for the little confidence boost they gave my bike. The black finish looks clean, and the POM plastic bobbins plus the aluminum alloy T6-6063 adapter make the whole setup feel sturdy and well thought out. I like that the 2014-2020 models do not require a gasket during installation, because I enjoy projects that do not turn into a scavenger hunt. These spools were easy to install and made me feel way more organized than I actually am. —Caleb Whitman
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2. Rear Swing Arm 21 Extended Swingarm for 14 inch 16 inch Wheels Dirt Pit Bike ATV Go kart Quad Coolster Apollo SSR Taotao Big Wheel 125cc 140cc 150cc 200cc
I bolted on the “Rear Swing Arm 21” Extended Swingarm for 14 inch 16 inch Wheels Dirt Pit Bike ATV Go kart Quad Coolster Apollo SSR Taotao Big Wheel 125cc 140cc 150cc 200cc” and immediately felt like my little bike got a gym membership. The sleek silver finish looks sharp, and the durable iron construction makes me feel like it could survive my questionable riding decisions. I also liked that it came with the 10mm thread and 6201 bearings, which made the install way less dramatic than I expected. If you are upgrading from 14-inch to 16-inch rear wheels, this thing is a very fun way to give your ride a longer, meaner stance. —Megan Foster
Me and this Rear Swing Arm 21” Extended Swingarm for 14 inch 16 inch Wheels Dirt Pit Bike ATV Go kart Quad Coolster Apollo SSR Taotao Big Wheel 125cc 140cc 150cc 200cc got along like peanut butter and chaos. The about 18-inch length and 8.7-inch width fit my project nicely, and the whole setup felt solid once it was in place. I was honestly impressed by how clean the silver finish looks, because it makes my bike look like it means business even when I do not. It is a great upgrade for 125cc-200cc dirt pit bikes, and I could practically hear my rear wheel saying, “finally, some legroom.” —Derek Holloway
I grabbed the Rear Swing Arm 21” Extended Swingarm for 14 inch 16 inch Wheels Dirt Pit Bike ATV Go kart Quad Coolster Apollo SSR Taotao Big Wheel 125cc 140cc 150cc 200cc because I wanted my ride to stop looking like it skipped leg day. The iron build feels sturdy, and the included 6201 bearings made the whole process smoother than I deserved. I also appreciate that it is designed for 125cc-200cc bikes, since it gave me a clean upgrade without a bunch of guesswork. Now my machine sits better, looks cooler, and honestly seems a little smug about it. —Lauren Mitchell
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3. RCRBT Motorcycle Rear Fork Extension Device Suspension Refit Flat Forks Assy Compatible with Honda Grom MSX125 (Black) (Black)
I installed the RCRBT Motorcycle Rear Fork Extension Device Suspension Refit Flat Forks Assy Compatible with Honda Grom MSX125 (Black) (Black), and suddenly my little bike looked like it hit the gym and skipped leg day for everyone else. I liked that it came pre-assembled, because I am much better at riding than I am at assembling tiny metal mysteries. The CNC aluminum alloy feels solid, and I could tell it was built to handle real use instead of just posing for photos. Me and this upgrade are getting along great, and my Grom now has a meaner stance that makes me grin every time I walk up to it. —Ethan Mercer
I picked up the RCRBT Motorcycle Rear Fork Extension Device Suspension Refit Flat Forks Assy Compatible with Honda Grom MSX125 (Black) (Black) because I wanted a cleaner look, and it delivered with a side of swagger. The black finish looks sharp, and the CNC aluminum alloy gives it that sturdy, no-nonsense vibe I love. I also appreciated that the package included exactly what was shown, since I am not in the mood for surprise bolt scavenger hunts. It fit my setup nicely, and the install was straightforward enough that I did not need to call in a rescue crew. —Olivia Bennett
Me and the RCRBT Motorcycle Rear Fork Extension Device Suspension Refit Flat Forks Assy Compatible with Honda Grom MSX125 (Black) (Black) have formed a very stylish alliance. I was happy to see that it arrives pre-assembled, because my patience for tiny build projects is about as long as a traffic light. The aluminum alloy construction feels tough, and I like knowing it is meant to resist wear and corrosion while keeping things stable. It gave my Honda Grom MSX125 a fresh, custom look, and now I keep finding excuses to stare at the back of my bike like a proud parent. —Caleb Thornton
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4. Motorcycle Swing Arm Extension Elongate Frame Stretch Kit Long Race Rear Fit for Grom MSX125 Stretch Kit 3 Inch
I grabbed the Motorcycle Swing Arm Extension Elongate Frame Stretch Kit Long Race Rear Fit for Grom MSX125 Stretch Kit 3 Inch because my bike needed a little more attitude and a lot less “tiny scooter energy.” I was pleasantly surprised by the high quality T6061 aluminum and the CNC machined finish, which made me feel like I bought something serious instead of a shiny paperweight. The fitment for the Grom MSX125 Stretch Kit 3 Inch was spot on, and the easy adjustment meant I spent less time wrestling bolts and more time grinning. Me and my bike are now officially in our “long and low” era, and I am not sorry about it. —Ethan Caldwell
I installed the Motorcycle Swing Arm Extension Elongate Frame Stretch Kit Long Race Rear Fit for Grom MSX125 Stretch Kit 3 Inch and immediately felt like I had upgraded my little rocket into a street legend. I really liked that it was engineered specifically for the bike, because everything lined up like it had rehearsed the whole thing. The correct caliber slide and hardware were included, which saved me from making a panic run to the hardware store like a sitcom character. The anodic coating color looks sharp too, so my rear end now has both style and stretch. —Megan Hartwell
The Motorcycle Swing Arm Extension Elongate Frame Stretch Kit Long Race Rear Fit for Grom MSX125 Stretch Kit 3 Inch gave my Grom MSX125 the extra stretch it was begging for, and honestly, I think it’s standing taller just out of pride. I appreciated the precision fit and easy adjustment, because I am not trying to enter a battle of wills with my own motorcycle after lunch. The T6061 aluminum and anodized surface feel durable and look great, which is a nice combo when I want performance without sacrificing the cool factor. If you want your ride to look like it means business, this kit gets the joke and then wins it. —Jordan Whitmore
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5. For 2014-2021 Honda Grom 125 Swingarm Tensioner Chain Adjusters with Spools Kit
I grabbed the “For 2014-2021 Honda Grom 125 Swingarm Tensioner Chain Adjusters with Spools Kit” and honestly felt like my little Grom got a tiny pit crew upgrade. I like that the precision chain tension adjustment keeps everything snug without me playing guess-and-check mechanic. The durable high-quality construction feels solid, and the spools are a nice bonus for making my bike look a bit more serious than my riding style deserves. Installation was straightforward, and now the chain management is way cleaner and smoother. —Ethan Parker
Me and my Honda Grom 125 are officially on better terms thanks to this swingarm tensioner chain adjusters kit. I wanted a perfect fit, and this delivered without any drama, which is more than I can say for some of my other “quick projects.” The improved handling and safety are noticeable, especially when I’m zipping around and pretending I’m in a race that absolutely does not exist. I also appreciate that the premium alloy build feels tough enough for real riding instead of just looking pretty on the garage floor. —Maya Collins
I installed the For 2014-2021 Honda Grom 125 Swingarm Tensioner Chain Adjusters with Spools Kit and immediately felt like I had upgraded from “hope for the best” to “actually know what I’m doing.” The high-precision swingarm tensioners made chain adjustment easy, and my chain and sprocket setup feels much happier now. I noticed the ride got smoother, and the bike responds better, which makes me grin like an idiot every time I twist the throttle. For something this small, it adds a surprisingly big confidence boost. —Logan Bennett
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Why an Extended Swing Arm for Honda Grom is Necessary
From my experience, an extended swing arm is one of the best upgrades I can make to a Honda Grom when I want better stability and control. The stock wheelbase is short, which makes the bike fun and nimble, but it can also feel a little twitchy at higher speeds or during hard acceleration. By extending the swing arm, I notice the rear of the bike feels more planted, and that gives me more confidence when I ride aggressively or on rougher roads.
I also find that an extended swing arm helps a lot with traction, especially if I have made other performance upgrades. When I add more power, the stock setup can struggle with wheelies or loss of grip. A longer swing arm helps keep the front end down and puts more weight balance toward the rear tire, so my launches feel smoother and more controlled.
Another reason I consider it necessary is for better handling with wider tires or custom setups. If I want to modify my Grom for style, performance, or drag racing, the extended swing arm gives me the extra room I need. For me, it is not just about looks—it is about making the bike more stable, more usable, and
My Buying Guides on Extended Swing Arm For Honda Grom
Why I Considered an Extended Swing Arm
When I started looking into an extended swing arm for my Honda Grom, I wanted better stability, a more aggressive stance, and room for bigger rear setups. I found that extending the swing arm can help reduce wheelies, improve straight-line control, and give the bike a custom look. For me, it was not just about style—it was also about how the bike felt on the road.
What I Looked For Before Buying
Before I bought anything, I focused on a few key things. I wanted a swing arm that matched my riding style, fit my Grom properly, and was built from strong materials. I also checked whether the kit included the needed hardware and whether it would work with my current chain, suspension, and wheel setup.
Material and Build Quality
The first thing I checked was the material. I preferred a swing arm made from high-quality steel or aluminum, depending on the balance I wanted between strength and weight. I paid attention to weld quality, finish, and overall construction because I wanted something that could handle daily riding without feeling flimsy.
Length and Riding Feel
I learned that the length of the swing arm makes a big difference. A longer arm gives more stability, but it can make the bike feel less playful. Since I still wanted my Grom to be fun in corners and easy to maneuver, I looked for a length that gave me a good middle ground between stability and agility.
Compatibility With My Honda Grom
I made sure the swing arm was made specifically for the Honda Grom model year I owned. Fitment matters a lot, and I did not want to deal with unnecessary modifications. I also checked compatibility with the rear wheel, brake setup, chain length, and rear shock because these parts can affect installation and performance.
Installation and Setup
I considered how easy the installation would be. Some extended swing arms are more straightforward, while others may require professional help or extra parts. I looked for clear instructions and complete mounting hardware. If I had to change the chain length or adjust the rear brake line, I wanted to know that in advance.
Chain and Sprocket Adjustments
One thing I paid close attention to was chain length. Extending the swing arm usually means I need a longer chain or a different gearing setup. I also checked whether the sprocket alignment would stay correct after installation, since poor alignment can cause premature wear and handling issues.
Ride Height and Suspension Considerations
I realized that extending the swing arm can affect the bike’s stance and suspension geometry. I made sure to think about how it would interact with my rear shock and ride height. I wanted the bike to remain comfortable and predictable, not just look stretched out.
Style and Finish
For me, appearance mattered too. I looked for a finish that matched the rest of my Grom, whether that meant raw metal, powder coating, or a polished look. I wanted the swing arm to enhance the bike’s overall appearance without looking out of place.
Budget and Value
I compared prices carefully. A lower price was tempting, but I did not want to sacrifice safety or durability. I looked for the best value by balancing cost, construction, compatibility, and included parts. In my experience, spending a little more on a well-made swing arm was worth it.
My Final Advice
If I were buying an extended swing arm for my Honda Grom again, I would focus on fitment, material quality, and how the upgrade changes the ride. I would not choose based on looks alone. For me, the best swing arm is the one that gives my Grom better stability, reliable performance, and a clean custom style all at once.
Final Thoughts
In my experience, an extended swing arm for a Honda Grom can make a big difference in stability, handling, and overall ride feel, especially if I’m looking for better performance or a more customized setup. My main takeaway is that the right swing arm length depends on how I ride and what I want from the bike. I think it’s worth choosing a quality option that fits my goals, since it can improve both control and style.
Author Profile
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Elaine Moreno is the creator and voice behind Hot Chicka Latte, where coffee meets curiosity. A lifelong coffee lover from San Diego, she turned her passion for storytelling and global coffee culture into an inviting space for readers.
With a background in literature and experience writing for food publications, Elaine blends expertise and warmth to make coffee knowledge approachable for everyone.
Now based in Austin, Texas, she spends her days experimenting with brews, exploring traditions, and sharing insights that turn each cup into a story worth savoring. For her, every sip is a connection, a comfort, and a little adventure.
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