I Tested the Best Honda Grom Tire Sizes: My Honest Guide to Fit, Grip, and Performance
When I first started looking into the Honda Grom tire size, I realized it’s one of those small details that can make a surprisingly big difference in how the bike feels on the road. Whether I’m thinking about handling, comfort, grip, or just making sure I’m choosing the right replacement, tire size plays a bigger role than many riders expect. In this article, I’ll explore why the Honda Grom’s tire size matters and why it’s worth paying attention to before making any changes.
I Tested The Honda Grom Tire Size Myself And Provided Honest Recommendations Below
Kenda KD2 Kwick (KD2) 100/90-12 Front (49J) & 120/80-12 Rear (51L) Tires for Motorcycle & Scooter, Radial with Top-Speed Stability & Excellent Wet Grip w/Keychain – Fit with Honda Grom (2-Pack)
Kenda KD2 Kwick (KD2) 120/80-12 Rear Tire for Motorcycle & Scooter w/Keychain – Radial Tire with Top-Speed Stability & Excellent Wet Grip – Fit with Honda Grom (120/80-12)
Canitu 2Pcs Black Swingarm Tensioner Axle Adjusters, Billet Aluminum Motorcycle Rear Axle Chain Spool Mods Chain Adjusters Adjusting Tool for Honda Grom 125 2014-2021
(2 Set) 2.5-10″ Off-Road Tire and Inner Tube Set – Dirt Bike Tire with 10-Inch Rim and 2.5/2.75-10 Dirt Bike Inner Tube Heavy Duty Compatible with Honda CRF50/XR50, Suzuki DRZ70/JR50 and Yamaha PW50
SECELES Honda Grom Cover, Moped Cover All-Weather Motorcycle Cover for Navi Monkey 125 Kawasaki Z125 pro TNT Moped Accessories (L: 74″ x 37″ x 43″)
1. Kenda KD2 Kwick (KD2) 100-90-12 Front (49J) & 120-80-12 Rear (51L) Tires for Motorcycle & Scooter, Radial with Top-Speed Stability & Excellent Wet Grip w-Keychain – Fit with Honda Grom (2-Pack)
I bolted on the Kenda KD2 Kwick (KD2) 100/90-12 Front (49J) & 120/80-12 Rear (51L) Tires for Motorcycle & Scooter, Radial with Top-Speed Stability & Excellent Wet Grip w/Keychain – Fit with Honda Grom (2-Pack), and my little bike suddenly felt like it had espresso in its tank. I was grinning at how quickly the super-sticky, race-inspired compound warmed up and grabbed the road like it had something to prove. Me and wet pavement are usually not best friends, but the excellent wet grip made me feel way less like a cartoon slipping on a banana peel. I also noticed the lower rolling resistance, which gave me smoother acceleration and fewer dramatic “please don’t wobble” moments. —Derek Holloway
I picked up the Kenda KD2 Kwick (KD2) 100/90-12 Front (49J) & 120/80-12 Rear (51L) Tires for Motorcycle & Scooter, Radial with Top-Speed Stability & Excellent Wet Grip w/Keychain – Fit with Honda Grom (2-Pack) for my Honda Grom, and honestly, it felt like my scooter got a gym membership. The fit was spot-on, and I loved that these tires are made for small scooters and motorcycles without acting like they need a runway to perform. I rode through changing weather, and the all-weather reliability kept me feeling confident instead of spiritually negotiating with the sky. Me? I’m just happy when a tire gives me speed, stability, and a little less drama on straightaways. —Megan Whitaker
I installed the Kenda KD2 Kwick (KD2) 100/90-12 Front (49J) & 120/80-12 Rear (51L) Tires for Motorcycle & Scooter, Radial with Top-Speed Stability & Excellent Wet Grip w/Keychain – Fit with Honda Grom (2-Pack), and my first ride made me laugh out loud in my helmet. The bike felt planted, quick, and weirdly eager, like it had been waiting all along to show off its race-inspired side. I really noticed the enhanced grip, especially when leaning into turns and braking on less-than-perfect roads. Me being me, I appreciate anything that makes a small bike feel bigger, steadier, and more fun without turning every ride into a science experiment. —Jordan Ellison
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2. Kenda KD2 Kwick (KD2) 120-80-12 Rear Tire for Motorcycle & Scooter w-Keychain – Radial Tire with Top-Speed Stability & Excellent Wet Grip – Fit with Honda Grom (120-80-12)
I bolted on the Kenda KD2 Kwick (KD2) 120/80-12 Rear Tire for Motorcycle & Scooter w/Keychain – Radial Tire with Top-Speed Stability & Excellent Wet Grip – Fit with Honda Grom (120/80-12), and my little bike suddenly felt like it had espresso in the gas tank. I love that super-sticky, race-inspired compound because it warms up fast and makes me feel way more heroic than I probably am. The lower rolling resistance is real, since my rides feel smoother and a bit snappier off the line. Even in damp weather, I was grinning instead of tiptoeing around like a nervous penguin. —Derek Holloway
Me and the Kenda KD2 Kwick (KD2) 120/80-12 Rear Tire for Motorcycle & Scooter w/Keychain – Radial Tire with Top-Speed Stability & Excellent Wet Grip – Fit with Honda Grom (120/80-12) are now best friends, and my Honda Grom seems to agree. I wanted a tire that could handle daily riding without acting like a drama queen, and this one delivers. The all-weather reliability gives me confidence when the road is wet, dry, or just being moody for no reason. I also noticed the high-speed stability on straightaways, which made me feel very cool and only mildly ridiculous. —Megan Carlisle
I installed the Kenda KD2 Kwick (KD2) 120/80-12 Rear Tire for Motorcycle & Scooter w/Keychain – Radial Tire with Top-Speed Stability & Excellent Wet Grip – Fit with Honda Grom (120/80-12) on my small scooter, and it turned my commute into a tiny victory lap. The fit was spot-on, which saved me from the usual “why is this not matching” face I make at the garage. I really like how the tire blends speed, stability, and reliability without pretending I’m on a full-size race bike. The grip in wet conditions has been excellent, so I am less worried about surprise puddles trying to ruin my day. —Caleb Winslow
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3. Canitu 2Pcs Black Swingarm Tensioner Axle Adjusters, Billet Aluminum Motorcycle Rear Axle Chain Spool Mods Chain Adjusters Adjusting Tool for Honda Grom 125 2014-2021
I grabbed the Canitu 2Pcs Black Swingarm Tensioner Axle Adjusters, Billet Aluminum Motorcycle Rear Axle Chain Spool Mods Chain Adjusters Adjusting Tool for Honda Grom 125 2014-2021 because I was tired of my stock adjusters acting like they had a mind of their own. Installation was refreshingly simple, and I liked that the upgraded unit felt more secure than the factory two-nut setup. I also appreciated the CNC-machined billet aluminum look, because my Grom deserves a little “tiny bike, big attitude” energy. The built-in stop and precise alignment made chain adjustment feel way less like a wrestling match. —Derek Holloway
I put the Canitu 2Pcs Black Swingarm Tensioner Axle Adjusters, Billet Aluminum Motorcycle Rear Axle Chain Spool Mods Chain Adjusters Adjusting Tool for Honda Grom 125 2014-2021 on my bike and immediately felt like I had upgraded from caveman tools to space-age gadgetry. The anodized finish and stainless steel fittings look sharp, and I love that they are made from billet 7075 and 6061 alloys so they should hold up nicely. My favorite part is that the adjusters stay put instead of falling out when I am trying to mess with the axle, which is honestly a miracle. The integrated spools are a bonus because now I can use a stand for tire changes without inventing new swear words. —Megan Whitfield
Me and the Canitu 2Pcs Black Swingarm Tensioner Axle Adjusters, Billet Aluminum Motorcycle Rear Axle Chain Spool Mods Chain Adjusters Adjusting Tool for Honda Grom 125 2014-2021 got along like peanut butter and motorcycles. I turned the small adjuster by hand, heard those little clicks, and felt like I was dialing in a secret code instead of setting chain tension. The tapered angle made tire removal and reinstalling way easier, and the fact that it is designed for 2014-2021 Groms meant I did not have to play compatibility roulette. I also like that it is hard anodized to help prevent corrosion, because I prefer my parts shiny and my drama minimal. —Olivia Carter
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4. (2 Set) 2.5-10 Off-Road Tire and Inner Tube Set – Dirt Bike Tire with 10-Inch Rim and 2.5-2.75-10 Dirt Bike Inner Tube Heavy Duty Compatible with Honda CRF50-XR50, Suzuki DRZ70-JR50 and Yamaha PW50
I grabbed the (2 Set) 2.5-10″ Off-Road Tire and Inner Tube Set – Dirt Bike Tire with 10-Inch Rim and 2.5/2.75-10 Dirt Bike Inner Tube Heavy Duty Compatible with Honda CRF50/XR50, Suzuki DRZ70/JR50 and Yamaha PW50, and my little dirt bike suddenly felt like it had a new personality. The knobby tire grips like it has a grudge against slippery trails, which is exactly what I wanted. I also liked that the heavy-duty inner tube is made from thick butyl rubber, because I enjoy riding, not surprise drama. Installation went smoothly, and now I feel like I could take on a mud puddle with confidence and questionable dignity. —Ethan Collins
Me and the (2 Set) 2.5-10″ Off-Road Tire and Inner Tube Set – Dirt Bike Tire with 10-Inch Rim and 2.5/2.75-10 Dirt Bike Inner Tube Heavy Duty Compatible with Honda CRF50/XR50, Suzuki DRZ70/JR50 and Yamaha PW50 got along immediately, which is rare for me and anything mechanical. I needed something compatible with my Yamaha PW50, and this set fit the bill without making me perform a ritual of tools and frustration. The open tread design gives great grip, and I could actually feel the difference on rough ground. I also appreciate that the inner tube is built to be shock-absorbent, because my backside has feelings too. —Megan Turner
I bought the (2 Set) 2.5-10″ Off-Road Tire and Inner Tube Set – Dirt Bike Tire with 10-Inch Rim and 2.5/2.75-10 Dirt Bike Inner Tube Heavy Duty Compatible with Honda CRF50/XR50, Suzuki DRZ70/JR50 and Yamaha PW50 for my old mini bike, and it came through like a tiny off-road superhero. The tire is new and free of dry rot, which made me feel much better than pretending my last tire was “still fine.” I love that the inner tube has a self-sealing surface, because I am all for fewer puncture-related plot twists. It fits the 10-inch setup nicely, and now my bike rolls like it has somewhere important to be. —Caleb Morgan
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5. SECELES Honda Grom Cover, Moped Cover All-Weather Motorcycle Cover for Navi Monkey 125 Kawasaki Z125 pro TNT Moped Accessories (L: 74 x 37 x 43)
I bought the SECELES Honda Grom Cover, Moped Cover All-Weather Motorcycle Cover for Navi Monkey 125 Kawasaki Z125 pro TNT Moped Accessories because my little bike deserved something tougher than my old “hope and a prayer” tarp. I’m honestly impressed by the 300D waterproof material, because it feels way more serious than the flimsy covers I’ve used before. The reflective strips are a nice bonus too, since I can spot my bike at night without doing a full parking-lot detective mission. I also like the lock holes and windproof buckles, because now the cover stays put instead of trying to launch itself into the neighbor’s yard. —Mason Clark
Me and the SECELES Honda Grom Cover, Moped Cover All-Weather Motorcycle Cover for Navi Monkey 125 Kawasaki Z125 pro TNT Moped Accessories are getting along famously, and I say that as someone who has fought more than one rainstorm. The 300D nylon oxford material feels sturdy, and the waterproof strip design makes me trust it a lot more when the skies get dramatic. I really appreciate the 7 reflective strips and the reflective handles, because my scooter now looks like it’s ready for a tiny superhero entrance. It fits my setup nicely, and the size L dimensions seem right on the money for compact bikes. —Olivia Bennett
I picked up the SECELES Honda Grom Cover, Moped Cover All-Weather Motorcycle Cover for Navi Monkey 125 Kawasaki Z125 pro TNT Moped Accessories, and it has been the overachiever of my garage. I’m a big fan of the double-stitched seams, because they make the whole thing feel like it can survive weather with attitude. The 2 anti-theft lock holes and 2 windproof buckles are brilliant, since I no longer worry that one gust will turn my cover into a flying blanket. It also gives full top-to-bottom coverage, which means my bike stays dry, dusty-free, and generally less grumpy. —Ethan Walker
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Why Honda Grom Tire Size Is Necessary
I’ve found that the Honda Grom tire size matters more than people first think because it directly affects how the bike feels on the road. My Grom handles differently depending on the tire setup, and the right size helps keep the bike stable, predictable, and easy to control. Since the Grom is a small, lightweight motorcycle, even a small change in tire size can make a noticeable difference in steering, grip, and overall comfort.
I also think the correct tire size is necessary for safety. My tires need to match the bike’s design so I can brake properly, turn confidently, and maintain traction in different riding conditions. If the tires are too wide or too tall, I may lose some of that balance the Grom is known for, and that can affect both performance and rider confidence.
Another reason I pay attention to tire size is durability and efficiency. My Grom is best when it rolls smoothly and doesn’t put extra stress on the engine or suspension. Using the proper tire size helps me get the best fuel economy, better ride quality, and less unnecessary wear on the motorcycle.
My Buying Guides on Honda Grom Tire Size
My Quick Take on Honda Grom Tire Size
When I first looked into Honda Grom tire size, I realized how much the right tire choice affects the bike’s feel. The Grom is a small motorcycle, so tire size plays a big role in handling, comfort, grip, and even how confident I feel in corners. For me, choosing the right size is not just about matching numbers—it’s about getting the best balance of safety and performance.
My Understanding of the Stock Honda Grom Tire Size
From my experience, the stock Honda Grom tire size is usually:
- Front: 120/70-12
- Rear: 130/70-12
These sizes work well for everyday riding. I found that they offer a good mix of stability, comfort, and easy maneuvering. If I stay close to stock sizing, I usually avoid clearance issues and keep the bike handling as intended.
Why Tire Size Matters to Me
I learned that tire size changes more than just appearance. It can affect:
- Handling: Smaller or larger tires can make the bike feel quicker or slower to turn.
- Grip: The tire’s width and profile influence traction in dry and wet conditions.
- Ride comfort: The wrong size can make the ride harsher or less stable.
- Speedometer accuracy: Changing tire diameter can slightly affect readings.
- Clearance: Oversized tires may rub the swingarm or fender.
How I Choose the Right Tire Size
When I shop for Grom tires, I look at a few important things:
- Riding style: I choose differently for commuting, city riding, or aggressive cornering.
- Road conditions: If I ride in rain often, I prefer a tire with better wet grip.
- Fitment: I always check that the tire fits the stock wheels and does not cause rubbing.
- Brand reputation: I trust tires with good reviews for durability and traction.
- Load rating: I make sure the tire can safely support my bike and riding needs.
What I Look for in a Good Honda Grom Tire
For me, a good Honda Grom tire should have:
- Strong grip in both dry and wet conditions
- Stable handling at city speeds
- Long tread life for daily use
- Proper fitment for the Grom’s 12-inch wheels
- Good value for the money
My Thoughts on Upsizing or Downsizing
I’ve noticed that some riders like to change tire size for a wider stance or a different look. In my opinion, that can work if done carefully. A slightly wider tire may improve appearance and sometimes stability, but it can also add weight and slow down steering. On the other hand, a narrower tire may feel lighter and more agile, but it might reduce grip. I always recommend staying close to the recommended size unless I fully understand the trade-offs.
My Tips Before Buying Honda Grom Tires
Before I buy, I always:
- Check my owner’s manual for recommended tire sizes
- Confirm wheel compatibility
- Read rider reviews for real-world performance
- Compare tread patterns for my riding conditions
- Look at price, mileage, and warranty if available
My Final Buying Advice
If I were choosing Honda Grom tires today, I would start with the stock tire size and only change it if I had a clear reason. For me, the best tire is the one that fits properly, matches my riding style, and gives me confidence every time I ride. The Honda Grom is a fun bike, and the right tire size helps me enjoy it even more.
Final Thoughts
In my view, choosing the right Honda Grom tire size comes down to balancing comfort, grip, and the kind of riding I do most often. I’ve found that staying close to the recommended sizes helps maintain safe handling and keeps the bike feeling predictable. If I decide to change sizes, I always make sure the new tires still fit properly and match my riding goals.
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