Correct, they do optimize the tires for how well it suits the bike, it basically NEEDS to complement the bikes performance while still staying within a price range suitable for a bike like this. But of course some people will need to 'upgrade' the tires to their liking over time.Front & rear tires are same size as the CBR250R, which are also the same sizes as the tires supplied on the Ninja 300. Not sure why you consider this rear tire size to be "dinky", as it is the appropriate tire size for all these bikes. When motorcycle manufacturers specify tire sizes for a given bike, it has nothing to do with how it "looks" on the bike. Manufacturer specified tire sizes are based on the performance parameters of the motorcycle, nothing more.
Depends on what kind of riding you plan on doing.Any tires you think would be great for the CBR300?
good to know. just wondering if its any larger because of the extra displacement.Front & rear tires are same size as the CBR250R, which are also the same sizes as the tires supplied on the Ninja 300. Not sure why you consider this rear tire size to be "dinky", as it is the appropriate tire size for all these bikes. When motorcycle manufacturers specify tire sizes for a given bike, it has nothing to do with how it "looks" on the bike. Manufacturer specified tire sizes are based on the performance parameters of the motorcycle, nothing more.
For that to happen, It'd have to be a significantly larger displacement, but still a good thing to question, you never know.good to know. just wondering if its any larger because of the extra displacement.
Exactly. From the factory it's already configured as best as it can be for what the bike is and what it's pricing is, only so much they can do.My guess is that the nominal width and aspect ratio coming from factory is already the optimal size for how the bike comes. It's not until you start making enough changes to the performance where a plus size would make a difference.
I don't believe there is such a thing as a "heavily modified" CBR250R. That said, there are a few misguided owners who for whatever crazy reason think that bigger is better when it comes to tire sizes on the 250R. What those guys fail to understand is that the rim width of the front & rear wheels are designed for the stock tire sizes. Bigger tires on a small bike like the CBR will actually result in slower turn in, as well as an overall feeling of sluggish handling.do people who heavily modify their 250s keep the stock tire width?
Those who know what they are doing will stay with stock sizes (of course using tires with stickier compounds). Some racers will even go one size smaller on their "track only" 250's. It's still a low horsepower bike. Bigger tires on a 25 HP bike are not going to make it faster. The opposite is true, it would be slower on a race track with larger than stock size tires.What about those who dedicate their 250 to pure track duty? Is the OEM size usually kept?
(just trying to learn here)
I guess going upsize on such a low displacement bike would make it slower and possibly make it harder to flick around turns.Those who know what they are doing will stay with stock sizes (of course using tires with stickier compounds). Some racers will even go one size smaller on their "track only" 250's. It's still a low horsepower bike. Bigger tires on a 25 HP bike are not going to make it faster. The opposite is true, it would be slower on a race track with larger than stock size tires.
That would be scary rather have more contact but obviously not to much that you're going slower than you need to be, just have to find that magic size.I guess going upsize on such a low displacement bike would make it slower and possibly make it harder to flick around turns.
Interesting how soem guys go one size smaller, I would be afraid for taking away from the traction/contact patch. I guess for track only it makes sense though, you wouldn't have to deal with loose gravel or even rain.
Which for CBR250R's and CBR300R's operated on streets & public roads, the ideal tire sizes are the very same sizes that Honda specifies and supplies as OEM from the factory.... just have to find that magic size.
The tire sizes for a given motorcycle are determined by a number of factors, including curb weight, horsepower, type of use, frame geometry, etc... it's safe to say that quite a lot of R&D testing goes into what a manufacturer will ultimately choose in the way of tire sizes, rubber compounds, construction (Radial or Bias Ply), and tread design for a particular motorcycle.so I'm going to continue to extract as much knowledge from you as I can while I can
how do manufacturers determine tire size and width?
as the horsepower goes up would it be safe to say the tire width usually goes up as well?
Yeah thats basically what i was trying to get at. Of course someone can go about doing their research to find out what is better but nothing beats what the manufacture that made the bike recommends. They did put in a lot of money into things like that after all.Which for CBR250R's and CBR300R's operated on streets & public roads, the ideal tire sizes are the very same sizes that Honda specifies and supplies as OEM from the factory.