Yamaha R25 Marketing...

[daught]

Forum Sponsor

What size will the rear tire be?

 

[Dresden]

But can it Wheelie?

 

[Benny!]

It cannot go over 40hp -that will affect EEU and British insurance brackets. Besides, hard to see how a ~20% increase in displacement could lead to a ~30% increase in power. The Ninja 250 was only carburated.
The R25 has 21nm of torque, while the Ninja's is 27nm..they will end up the same more or less @320cc. Yamaha has only to match the Ninja and market with MotoGP references since Kawa hasn't been in GP racing for years. The Rossi/Lorenzo effect is huge in Italy and Spain, two huge markets for bikes.

The ninja 250 was fi in Europe with the same HP. If Yamaha wanted the same HP figures there would be no 320 cc talk.

 

[CafeRay]

What size will the rear tire be?

140, same as Ninja.

 

[CafeRay]

The ninja 250 was fi in Europe with the same HP. If Yamaha wanted the same HP figures there would be no 320 cc talk.

320 cc is marketing when competing with a 300. Kawasaki did this nonsense with the 250 to 300 generation, 600 to 636, etc. A 320 will have 8 percent more power, which is impossible to perceive.

 

[daught]

140, same as Ninja.

Useless.


Sent from the future using my GOLDEN iPhone 30 SS n

 

[CafeRay]

Useless.


Sent from the future using my GOLDEN iPhone 30 SS n

It would be worse than useless to put a wider tire on a <40hp bike with that weight. Anything wider would be slower.

50hp MotoGP3 bikes only use 3.5" rear tires. Width is far less important than other tire parameters.

 

[daught]

It would be worse than useless to put a wider tire on a <40hp bike with that weight. Anything wider would be slower.

50hp MotoGP3 bikes only use 3.5" rear tires. Width is far less important than other tire parameters.

If all you want is cheap, sure 140. If you want to corner 160+ More grip = faster.


Sent from the future using my GOLDEN iPhone 30 SS n

 

[CafeRay]

If all you want is cheap, sure 140. If you want to corner 160+ More grip = faster.

Ok, you need to read up a little more and understand what small bikes are about, and how tires work.

 

[daught]

Ok, you need to read up a little more and understand what small bikes are about, and how tires work.

We're not talking about single digit hp retro bikes with carriage wheels. If these machines want to be taken seriously they need 160+


Sent from the future using my GOLDEN iPhone 30 SS

 

[msatrakkoic]

Kawi vs. Yamaha

...and go!

 

[CafeRay]

We're not talking about single digit hp retro bikes with carriage wheels. If these machines want to be taken seriously they need 160+

Wider tires are heavier, harder to warm up, have more rolling drag, and harder to turn in. If you just want aesthetics, buy a 89 Honda Civic and have at it.

I have seen idiots mount 160s on Ninja250s. But hey, let's ignore PhD engineers. Wider tires will not make a bike handle better, and again, makes no sense on a <40 hp bike to mount 160s.

If it made sense, Kawasaki and Yamaha would do it for aesthetics alone, because actual rubber cost difference to an OEM is negligible. A good 140 from Pirelli or Michelin will put these bikes at surprising angles at track days and a good rider will catch up 600s... until the straight.

 

[CafeRay]

Kawi vs. Yamaha

...and go!

BMW is coming into this market as well. There are plenty of JDM small fours that can be resurrected.

 

[msatrakkoic]

Bmw ftw

 

[CafeRay]

Bmw ftw

So far, they are only trying a 250 single naked bike.

 

[msatrakkoic]

I wasnt even aware of that. I doubt theyll be competitive in that bracket. Bmw's are premium...and most people wouldnt spend that kind of money on a 250, especially if theyre looking to upgrade in the future

 

[CafeRay]

I wasnt even aware of that. I doubt theyll be competitive in that bracket. Bmw's are premium...and most people wouldnt spend that kind of money on a 250, especially if theyre looking to upgrade in the future

In the Malaysian and Indian markets, anything above 250 has a huge tax.

Here's the CBR300F

140 rear..so we can't take it seriously. But, only $3999.

 

[msatrakkoic]

But again thats a Honda right? Bmws price will be 20% just cause

 

[daught]

Wider tires are heavier, harder to warm up, have more rolling drag, and harder to turn in. If you just want aesthetics, buy a 89 Honda Civic and have at it.

I have seen idiots mount 160s on Ninja250s. But hey, let's ignore PhD engineers. Wider tires will not make a bike handle better, and again, makes no sense on a <40 hp bike to mount 160s.

If it made sense, Kawasaki and Yamaha would do it for aesthetics alone, because actual rubber cost difference to an OEM is negligible. A good 140 from Pirelli or Michelin will put these bikes at surprising angles at track days and a good rider will catch up 600s... until the straight.

As 600s got lighter, did they go to 140 from 160 or 180? I win.


Sent from the future using my GOLDEN iPhone 30 SS n

 

[TwistedKestrel]

Wider tires are heavier, harder to warm up, have more rolling drag, and harder to turn in. If you just want aesthetics, buy a 89 Honda Civic and have at it.

I have seen idiots mount 160s on Ninja250s. But hey, let's ignore PhD engineers. Wider tires will not make a bike handle better, and again, makes no sense on a <40 hp bike to mount 160s.

If it made sense, Kawasaki and Yamaha would do it for aesthetics alone, because actual rubber cost difference to an OEM is negligible. A good 140 from Pirelli or Michelin will put these bikes at surprising angles at track days and a good rider will catch up 600s... until the straight.

A counter-point to this argument is that nobody makes modern rubber in anything smaller than 140 these days. All small width sport tires are bias ply, and most of the designs on the market are around a decade old.

Forum Sponsor