m in sc said:ive never heard or seen that, and i run a lot of bikes 2x as old as the concours. (with sticks and twigs for suspensions) I mean, bad suspension isn't good but i've never seen it cause a tire to cup. I have seen new sport bikes cup tires pretty bad when a track day was done though, so the braking definitely has affect as mentioned, but most aren't stuffing the c10 late into corner 3. :motonoises:
from Dunlop:
How can I keep my tires from cupping?
You may not be able to entirely avoid cupping. Tire cupping or irregular wear is a somewhat common occurrence on all vehicles. On a four-wheel vehicle, you are advised to rotate your tires periodically to even out wear. Unfortunately, you do not have this luxury with a motorcycle because front and rear tires, unlike those on most four-wheel vehicles, are not interchangeable.
However, there are steps that can be taken to minimize cupping and uneven wear on a motorcycle: Maintain your motorcycle and particularly your front and suspension. Avoid hard braking whenever possible. Braking causes the tire to grab and wear in one direction. When braking is applied to the front tire, the load transfer over-flexes the tire and increases the tendency for cupping and uneven wear. Maintain your tire pressures. Under inflation and overloading of motorcycle tires are significant causes of cupping and uneven wear, particularly in association with hard braking and/or trailer use.
Once a tire begins to show signs of uneven wear, even following these steps may not improve the condition.
Tire companies can, and are, helping to minimize cupping and uneven wear but you, the rider, must do your part. Following the aforementioned guidelines will help avoid uneven wear.
shown here:
https://www.dunlopmotorcycletires.com/about/faq/#faq-4