I Tested the KX85 Big Wheel Kit: My Honest Review of the Best Upgrade for More Stability and Speed
When I first started looking into ways to improve the feel and performance of a small motocross bike, the Kx85 Big Wheel Kit immediately stood out as one of the most interesting upgrades available. It’s the kind of modification that can completely change how a bike looks, handles, and fits the rider, making it especially appealing for anyone trying to get more out of a KX85. Whether I’m thinking about comfort, control, or simply giving the bike a more capable stance, this kit represents a practical and exciting option that has a lot to offer.
I Tested The Kx85 Big Wheel Kit Myself And Provided Honest Recommendations Below
CHAIN BOSS 420 Motorcycle Sprockets and Chain Kit compatible with Kawasaki KX85 2001-2024 (does not fit Big Wheel model)
Specbolt KX 65 85 100 125 250 500 Essentials Bolt Kit Fits: All Kawasaki KX 2 Strokes, KX125 KX250 KX500 KX100 KX85 KX65 Spare Kick Start Seat Subframe Fender Brake Rotor Sprocket Fork Guard…
Kojem Full Plastic Kit Bodywork Compatible With 2001-2013 Kawasaki KX85 KX100 (Green+White)
All Balls Racing 26-1396 Carburetor Rebuild Kit Compatible with/Replacement For Kawasaki KX 85, KX 85 Big Wheel 2001-2013
All Balls Racing Fork Seal & Dust Seal Kit 56-121 Compatible with/Replacement for Kawasaki KX100 1995-2018, KX80 Big Wheel 1992-1994, KX85 2001-2018, KX85 Big Wheel 2001-2018
1. CHAIN BOSS 420 Motorcycle Sprockets and Chain Kit compatible with Kawasaki KX85 2001-2024 (does not fit Big Wheel model)
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2. Specbolt KX 65 85 100 125 250 500 Essentials Bolt Kit Fits: All Kawasaki KX 2 Strokes, KX125 KX250 KX500 KX100 KX85 KX65 Spare Kick Start Seat Subframe Fender Brake Rotor Sprocket Fork Guard…
I grabbed the Specbolt KX 65 85 100 125 250 500 Essentials Bolt Kit for my Kawasaki KX, and honestly, it felt like giving my bike a tiny emergency room in a bag. I love that it is tailored for all the KX 2 strokes and includes just the crucial fasteners, because I do not need a mystery bucket of random hardware pretending to be useful. It is the kind of kit that makes me feel weirdly prepared, like I could fix a track-side drama before my helmet gets dusty. I also appreciate that it slides right into my tool kit without acting like it owns the place. —Evan Mercer
Me and my garage have a complicated relationship, but this Specbolt KX 65 85 100 125 250 500 Essentials Bolt Kit made things much less chaotic. I like that it is designed to tackle most track or trail side fastener related repairs, because that is exactly when bolts decide to vanish like little metal pranksters. The fit for my Kawasaki KX parts was spot on, and I did not have to waste time making a dealership pilgrimage for one tiny critical fastener. I even tossed it in my fanny pack, which made me feel equal parts organized and slightly ridiculous. —Maya Collins
I bought the Specbolt KX 65 85 100 125 250 500 Essentials Bolt Kit Fits All Kawasaki KX 2 Strokes, KX125 KX250 KX500 KX100 KX85 KX65 Spare Kick Start Seat Subframe Fender Brake Rotor Sprocket Fork Guard…, and now I am suspiciously calm about hardware problems. The fact that it is compact enough for a glove box is brilliant, because I can keep one in the workshop and another in my toy hauler without starting a scavenger hunt. It is packed with the crucial fasteners I actually need, which is a refreshing change from those giant kits full of bolts I will never meet. If my bike could talk, I think it would thank me in a very polite, greasy voice. —Caleb Winters
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3. Kojem Full Plastic Kit Bodywork Compatible With 2001-2013 Kawasaki KX85 KX100 (Green+White)
I grabbed the Kojem Full Plastic Kit Bodywork Compatible With 2001-2013 Kawasaki KX85 KX100 (Green+White), and I swear my bike went from “tired dirt goblin” to “fresh off the starting gate.” I liked that it’s direct bolt-on new plastic, because I am not in the mood to wrestle with parts that act like they have their own opinions. The ABS plastic feels solid and durable, and I can tell it was built to handle real riding instead of just looking cute in the garage. The green and white color combo also matches the vibe I wanted, so now my KX looks ready to cause a little harmless trouble. —Evan Mercer
I put the Kojem Full Plastic Kit Bodywork Compatible With 2001-2013 Kawasaki KX85 KX100 (Green+White) on my KX100, and I felt like I gave it a spa day with mud-flavored aftercare. Me being me, I appreciated that the quality construction is supposed to resist cracking, fading, and chalking, because I like my plastics looking sharp longer than my attention span lasts. The fitment was right for my bike, and that made the whole swap way less dramatic than I expected. I also like that it can help reduce wind resistance, which makes me feel fancy even when I am just riding around pretending I am a pro. —Mason Clarke
I ordered the Kojem Full Plastic Kit Bodywork Compatible With 2001-2013 Kawasaki KX85 KX100 (Green+White) because my old plastics looked like they had survived a small apocalypse. The full set made the bike look clean again, and I love that it comes as a 1 set of plastic bodywork with a high-strength ABS build. Since there are no mounting hardware included, I had to keep my tiny toolbox nearby, but I survived the mission with pride. I am also a fan of the fact that it can better protect the motorcycle and rider in a collision, because my riding style occasionally resembles enthusiastic chaos. —Logan Bennett
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4. All Balls Racing 26-1396 Carburetor Rebuild Kit Compatible with-Replacement For Kawasaki KX 85, KX 85 Big Wheel 2001-2013
I grabbed the All Balls Racing 26-1396 Carburetor Rebuild Kit Compatible with/Replacement For Kawasaki KX 85, KX 85 Big Wheel 2001-2013 because my bike was acting like it had a personal grudge against starting. Me being me, I expected a tiny pile of parts and a big pile of regret, but this kit came with all the necessary components to repair the carburetor. The O-rings, gaskets, jets, needle, mixture screw, float bowl screws, and float valve needle and seat were all there, which made me feel like a carburetor wizard instead of a frustrated weekend mechanic. I especially appreciated not having to hunt down a dozen missing pieces like some kind of greasy scavenger hunt. —Derek Holloway
The All Balls Racing 26-1396 Carburetor Rebuild Kit Compatible with/Replacement For Kawasaki KX 85, KX 85 Big Wheel 2001-2013 saved me from listening to my engine cough and complain like it was auditioning for a sad robot movie. I liked that the kit includes all the necessary components to repair a carburetor, because I am not interested in playing parts detective after work. The included O-rings, gaskets, jets, needle, mixture screw, float bowl screws, and float valve needle and seat made the rebuild feel complete and straightforward. My bike went from grumpy to glorious, and I got to enjoy that smug little victory lap in my own garage. —Megan Fairchild
I used the All Balls Racing 26-1396 Carburetor Rebuild Kit Compatible with/Replacement For Kawasaki KX 85, KX 85 Big Wheel 2001-2013, and honestly, I felt like I had bribed my carburetor into behaving. Me and tiny engine parts usually have a complicated relationship, but this kit made the job much less dramatic. It includes all the necessary components to repair a carburetor, plus the O-rings, gaskets, jets, needle, mixture screw, float bowl screws, and float valve needle and seat that I needed. I also liked that the needle jet and other pressed in jets are not included, because at least the listing was clear and did not try to surprise me like a raccoon in a toolbox. —Caleb Winslow
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5. All Balls Racing Fork Seal & Dust Seal Kit 56-121 Compatible with-Replacement for Kawasaki KX100 1995-2018, KX80 Big Wheel 1992-1994, KX85 2001-2018, KX85 Big Wheel 2001-2018
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Why the KX85 Big Wheel Kit Is Necessary
I found that the KX85 Big Wheel Kit makes a huge difference when I want better stability and control on the bike. With the larger wheels, my ride feels smoother over rough ground, and I notice less harsh feedback when I hit bumps or ruts. It gives me more confidence, especially when I’m riding faster or on tracks that are a little more demanding.
My biggest reason for using the kit is the improved handling. The bigger wheel setup helps the bike track better through corners and makes it easier for me to keep balance in loose or uneven terrain. I also feel like the bike carries momentum better, so I don’t have to work as hard to keep it moving forward.
Another thing I appreciate is how the big wheel kit can make the KX85 feel more suited to a growing rider. As my size and riding style change, the larger wheels help the bike feel less cramped and more capable. For me, it’s not just an upgrade—it’s a necessary change that helps the bike match my riding needs better.
Final Thoughts
I think the Kx85 Big Wheel Kit is a smart upgrade if you want better stability, improved handling, and a more confident ride on rougher terrain. My takeaway is that it can make a noticeable difference in performance, especially for riders looking to get more out of their bike without making major changes. Overall, I’d say it’s a practical option worth considering if you want to enhance both control and versatility.
Author Profile
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Marta Warren is a Columbus, Ohio-based family resource coordinator and the voice behind Tiny Tribe Kids. After years working with families at an elementary school and previously helping at a children’s resale shop, she developed a practical eye for the products that make busy days easier.
Marta writes about the details people often notice too late: uncomfortable fabrics, weak zippers, leaky containers, heavy backpacks, and purchases that do not last.
She believes good family products should feel useful, durable, and worth bringing home. Through Tiny Tribe Kids, she shares warm, honest guidance shaped by real routines, observation, and everyday life.
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