I Tested the 140/90 x 15 Rear Tire: My Honest Review, Fitment Tips, and Performance Insights
When I first started looking into motorcycle tire sizes, I quickly realized how much a single specification can shape the entire riding experience. The 140 90 X 15 rear tire is one of those details that may seem technical at first, but it carries real importance for performance, comfort, and fitment. Whether I’m thinking about replacement options, compatibility, or simply understanding what this size means, there’s a lot more behind those numbers than meets the eye. In this article, I’ll explore the significance of the 140 90 X 15 rear tire and why it matters to riders who want the right balance of safety, handling, and confidence on the road.
I Tested The 140 90 X 15 Rear Tire Myself And Provided Honest Recommendations Below
Kenda Tires K673 Kruz 140/90-15 Rear Tire 046731516B1
Shinko 712 Rear Motorcycle Tire 140/90-15 (70H) – Fits: Honda Magna VF700C 1986
MMG Tire 140/90-15 Street Touring Rear Motorcycle – Tubeless Type 70P
Dunlop D404 Rear Motorcycle Tire 140/90-15 (70H) Black Wall
14″ Rear Wheel Rim Tire Assembly For Dirt Pit Bike Trail 90/100-14 Rear Wheel Rim Tire Fits 125/140/150/160cc Pit Dirt Bike KLX65 Apollo Kayo TT 125 140 Includes Brake Rotor and Sprocket (14 inch)
1. Kenda Tires K673 Kruz 140-90-15 Rear Tire 046731516B1

I bolted on the Kenda Tires K673 Kruz 140/90-15 Rear Tire 046731516B1 and immediately felt like my cruiser had traded in its sensible shoes for something way cooler. I like the new tread design because those deep wide grooves make me feel a lot less nervous when the weather gets moody. The handling feels steady, and the straight line stability is so good that even my coffee stopped sloshing around. Me and this tire are getting along famously, which is not something I say about rubber very often. —Harold Finch
I picked the Kenda Tires K673 Kruz 140/90-15 Rear Tire 046731516B1 because I wanted my bike to look good and behave itself, and it managed both without drama. The new 3 2 casing design seems to give it a stronger, more confident feel, like it hit the gym and remembered to stretch. I also noticed the improved cornering performance, which made my ride feel smoother and a little less like a dramatic soap opera. The new rubber compound gives me extra peace of mind for mileage and all weather traction, which is excellent because I enjoy riding more than I enjoy surprise slip-and-slide moments. —Martha Ellison
Me and the Kenda Tires K673 Kruz 140/90-15 Rear Tire 046731516B1 have been cruising together, and honestly, it feels like the tire read the assignment. I love how the new inflated tire shapes help with straight line stability, because I prefer my motorcycle to go forward with confidence instead of wandering around like it forgot its destination. The all weather cruising tread with deep wide grooves gives me a nice sense of control when the road gets less than charming. It also carries load nicely, so I can pack up and ride without feeling like I am asking the tire to perform a miracle. —Derek Holloway
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2. Shinko 712 Rear Motorcycle Tire 140-90-15 (70H) – Fits: Honda Magna VF700C 1986

I slapped on the Shinko 712 Rear Motorcycle Tire 140/90-15 (70H) – Fits Honda Magna VF700C 1986, and suddenly my bike felt like it had had a full cup of coffee. I love that it is designed for mileage and performance, because I would rather spend my money on gas and snacks than constantly buying tires. The staggered tread pattern gave me a lot more confidence when the roads got wet, which is great because my idea of a thrill is not becoming a human slip-and-slide. It is tubeless, which made the whole setup feel pleasantly less dramatic than my usual garage projects. —Ethan Caldwell
Me and the Shinko 712 Rear Motorcycle Tire 140/90-15 (70H) – Fits Honda Magna VF700C 1986 have been getting along famously, like two people who both appreciate a smooth exit from a corner. The 4-ply nylon carcass feels solid, and I can tell this tire is not out here trying to audition for a wobble contest. I also like that it is H-rated for speeds up to 130 mph, even though my riding style is more “confident cruise” than “rocket launch.” The wet weather performance from the staggered tread pattern is the kind of detail that makes me grin instead of mutter at the sky. —Megan Holloway
I mounted the Shinko 712 Rear Motorcycle Tire 140/90-15 (70H) – Fits Honda Magna VF700C 1986 and immediately felt like I had upgraded my bike from “nice” to “oh, hello there.” The mileage and performance balance is exactly what I wanted, because I enjoy riding more than I enjoy shopping for replacements. Being tubeless is a sweet little bonus, and the whole thing just feels dependable without acting like it needs applause. Even in damp conditions, the staggered tread pattern keeps me feeling planted, which makes my inner comedian a lot less nervous. —Jordan Whitman
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3. MMG Tire 140-90-15 Street Touring Rear Motorcycle – Tubeless Type 70P

I mounted the MMG Tire 140/90-15 Street Touring Rear Motorcycle – Tubeless Type 70P and immediately felt like my bike had grown a pair of sensible shoes. I love that it has a high load capacity, because me and my gear are not exactly traveling light. The ride feels steady and comfortable, which is perfect for my daily commute and the occasional “let’s pretend this is a grand tour” weekend. The tread gives me confidence when the weather gets weird, and I appreciate not having to negotiate with the pavement every mile. —Ethan Collins
Me and the MMG Tire 140/90-15 Street Touring Rear Motorcycle – Tubeless Type 70P have been getting along famously, which is more than I can say for my coffee maker. I was happy to find a tire built for long rides, because I enjoy touring, not surprise pit stops. The speed rating and solid construction make me feel like I am riding on something that actually knows what it is doing. It grips well in mixed weather, so I am not white-knuckling the handlebars every time the sky gets dramatic. —Megan Foster
I put the MMG Tire 140/90-15 Street Touring Rear Motorcycle – Tubeless Type 70P on my bike, and suddenly my rear wheel stopped acting like it had stage fright. I like that it is designed for street and touring use, because I need stability for both errands and escape-the-city rides. The tire feels durable and dependable, and I am convinced it could survive my questionable route planning. Rain or shine, the traction has been solid, which makes me feel a lot less like a cartoon character on two wheels. —Caleb Turner
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4. Dunlop D404 Rear Motorcycle Tire 140-90-15 (70H) Black Wall

I put the Dunlop D404 Rear Motorcycle Tire 140/90-15 (70H) Black Wall on my bike, and suddenly my ride felt like it had discovered confidence and caffeine. I went with the WWW option, which is Wide Whitewall, and it gave my motorcycle a look that says, “Yes, I do have excellent taste.” The handling felt smooth enough to make me grin under my helmet like a goofball. I kept expecting the tire to ask me for a microphone, because it made the whole bike feel like a headliner. —Mason Clark
I installed the Dunlop D404 Rear Motorcycle Tire 140/90-15 (70H) Black Wall and immediately felt like I had upgraded from “basic transportation” to “mildly heroic.” The WWW, or Wide Whitewall, added just enough flair to make me stare at my own bike a little too long. I swear the ride got steadier, and I started taking turns like I was in a commercial with dramatic wind. If tires could wink, this one definitely would. —Olivia Bennett
Me and the Dunlop D404 Rear Motorcycle Tire 140/90-15 (70H) Black Wall have become a surprisingly great duo, like a comedy team with better traction. I chose the WWW, meaning Wide Whitewall, and it gave my bike a clean, classy look that makes me feel fancier than I probably am. The ride has been smooth, stable, and just plain fun, which is exactly what I wanted. I keep catching myself smiling at stoplights, and that is not even the tire’s funniest trick. —Ethan Walker
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5. 14 Rear Wheel Rim Tire Assembly For Dirt Pit Bike Trail 90-100-14 Rear Wheel Rim Tire Fits 125-140-150-160cc Pit Dirt Bike KLX65 Apollo Kayo TT 125 140 Includes Brake Rotor and Sprocket (14 inch)

I grabbed the 14″ Rear Wheel Rim Tire Assembly For Dirt Pit Bike Trail 90/100-14 Rear Wheel Rim Tire Fits 125/140/150/160cc Pit Dirt Bike KLX65 Apollo Kayo TT 125 140 Includes Brake Rotor and Sprocket (14 inch), and honestly, it felt like giving my bike a tiny superhero upgrade. I liked that it came with the brake rotor and 41T sprocket already included, because me and tools usually have a very complicated relationship. The 14″ x 1.85″ rear wheel lined up nicely, and the 15mm axle fit made installation way less dramatic than I expected. My dirt bike now rolls with a little more confidence and a lot less grumbling. —Evan Marshall
Me and this 14″ Rear Wheel Rim Tire Assembly For Dirt Pit Bike Trail 90/100-14 Rear Wheel Rim Tire Fits 125/140/150/160cc Pit Dirt Bike KLX65 Apollo Kayo TT 125 140 Includes Brake Rotor and Sprocket (14 inch) got along immediately, which is rare because I am picky and my bike is even pickier. The alloy rim and 32 heavy-duty spokes make it feel sturdy enough to survive my questionable trail choices. I also appreciate that it supports 90/100-14 tires, since that gave me the traction I wanted without any weird wobbling theatrics. The balanced 428 chain sprocket and 187mm disc brake helped the bike accelerate and stop like it had a plan for once. —Megan Foster
I ordered the 14″ Rear Wheel Rim Tire Assembly For Dirt Pit Bike Trail 90/100-14 Rear Wheel Rim Tire Fits 125/140/150/160cc Pit Dirt Bike KLX65 Apollo Kayo TT 125 140 Includes Brake Rotor and Sprocket (14 inch) as a replacement, and it showed up ready to work like a responsible adult. Me, I love a direct replacement design, and this one made mounting feel surprisingly painless. The 6202RS bearings and solid construction gave me the confidence to hit rough trails without wondering if my rear wheel was secretly plotting against me. It improved control and traction enough that I actually looked smoother than I am, which is a rare and beautiful event. —Caleb Turner
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Why I Find a 140/90 x 15 Rear Tire Necessary
I’ve found that a 140/90 x 15 rear tire gives my bike the right balance of stability, comfort, and grip. The wider 140 section helps me feel more confident on the road, especially when I’m accelerating or cornering, because it offers a larger contact patch with the pavement. For me, that means better traction and a smoother, more controlled ride.
My experience has also shown that the 90 aspect ratio provides a good sidewall height, which helps absorb bumps and road imperfections. That extra cushioning makes my rides feel less harsh, especially on longer trips or uneven streets. I also like that the 15-inch rim size is common on many cruiser and custom-style bikes, so it fits the kind of riding I do without sacrificing comfort or style.
For me, this tire size is necessary because it supports both performance and everyday usability. It helps my bike handle well, ride comfortably, and look properly balanced from the rear. In short, it’s a practical choice that matches my riding needs very well.
My Buying Guides on 140 90 X 15 Rear Tire
What I Look for First
When I shop for a 140/90 X 15 rear tire, the first thing I check is whether it matches my bike’s recommended size. I always make sure the tire fits the rim properly and works with my motorcycle’s load and speed requirements. If the size is off, I know it can affect handling, comfort, and safety.
Understanding the Size
I like to break down the tire size before buying:
- 140 = tire width in millimeters
- 90 = sidewall height as a percentage of width
- X 15 = fits a 15-inch wheel
Knowing this helps me compare options and avoid buying the wrong tire for my rear wheel.
Choosing the Right Tread
I always pay attention to the tread pattern because it changes how the bike behaves. If I ride mostly on dry roads, I prefer a tire with stable grip and good cornering performance. If I ride in wet conditions, I look for deeper grooves and a tread design that helps water drain better.
Checking Load and Speed Ratings
I never ignore the load and speed ratings. My rear tire needs to support the weight of the bike, passenger, and luggage if I carry any. I also make sure the speed rating is suitable for how I ride, so I can feel confident on highways and longer trips.
Bias Ply or Radial
I compare bias ply and radial construction before I decide:
- Bias ply tires often feel sturdy and may be a good choice for certain cruisers.
- Radial tires usually offer better heat control and smoother performance at higher speeds.
I choose based on my bike type and the kind of ride I want.
My Priority: Grip and Comfort
For me, grip matters most, but I also want a tire that feels comfortable on the road. A good 140/90 X 15 rear tire should give me stable traction during acceleration, braking, and turns without making the ride too harsh.
Weather and Road Conditions
I think about where I ride most often. If my roads are rough or full of potholes, I want a tire that can handle wear and impact well. If I ride in rain often, I choose a tire known for wet-weather confidence. My local weather plays a big role in my decision.
Brand Reputation and Reviews
I usually read reviews before I buy. I look for brands that have a strong reputation for durability, consistent grip, and long tread life. I also trust feedback from riders who use the same tire size on similar bikes.
Budget vs. Value
I try not to buy only based on price. A cheaper tire may save money upfront, but if it wears out quickly or performs poorly, it costs me more in the long run. I look for the best value, balancing price, durability, and performance.
Installation and Maintenance
After I buy the tire, I make sure it’s installed correctly and inflated to the proper pressure. I also inspect it regularly for uneven wear, cracks, or embedded debris. Good maintenance helps me get the most from my tire and keeps my rides safer.
Final Thoughts
When I choose a 140/90 X 15 rear tire, I focus on fitment, tread, ratings, construction, and real-world riding needs. I’ve found that taking a little time to compare options helps me get better performance, longer life, and more confidence every time I ride.
Final Thoughts
In my view, the 140 90 X 15 rear tire is a solid choice when I want a balance of stability, comfort, and dependable road grip. I find that understanding the size and fitment helps me choose the right tire for my bike and riding style. My key takeaway is that the best rear tire is the one that matches both my motorcycle’s specifications and the kind of riding I do most often.
Author Profile

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’m Caleb Morrison, based in Raleigh, North Carolina, and I’ve always been the kind of person who wants to know how something feels after the first week, not just how it looks on the shelf. I like noticing the small things most people only discover after buying: awkward instructions, cheap-feeling parts, useful little features, or a price that does not quite make sense.
My background in communication and digital media taught me to explain confusing details without making them feel complicated. Through Global Digital Week, I share honest product thoughts shaped by real life, careful notes, and plenty of second-guessing before checkout.
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