Widest rear tire for 2012 cbr250r (stock wheel)

[Aufitt]

Alot of ppl are under the misconception that wider tyre gives more edge grip,

It works the opposite as the rubber doesnt get enough temp to work, and on a light low powered bike this is important.
it also looses its curve in the middle that causes it to not hold a line as well.

Post a pic of a used 150 tyre taken directly from behind the tyre at axle height.
then look at how the rubber falls away on the edges.

[Magona250]

Originally Posted by Aufitt

Alot of ppl are under the misconception that wider tyre gives more edge grip,

It works the opposite as the rubber doesnt get enough temp to work, and on a light low powered bike this is important.
it also looses its curve in the middle that causes it to not hold a line as well.

Post a pic of a used 150 tyre taken directly from behind the tyre at axle height.
then look at how the rubber falls away on the edges.

+1 , look at a moto3 tyre, its tiny. A 115/70 17 iirc.

[Luke]

Here are some pictures of the clearance on the 150. For reference, it's about 1/2" (12mm) on the brake rotor side and 3/8" (10mm) on the chain side.

I agree that the 150 doesn't have any cornering advantage over the 140. The reason I went with it was because of the Michelin PR2 rep and the fact that the tire is only 5mm wider than the 140 - that's 1/10" of an inch on each side.