strange front tyre wear... ?

Have noticed this on every front I've had. The current one is near bolloxed anyway, and due a change asap, but I've noticed it keeps "cupping" . It's hard to explain, but the sides of the tyre where it meets the top, there's a ridge around it???

Feels a bit strange when tipping in, a bit like it tips in smooth, then the front falls in which feels as though it looses grip but doesn't?

Any ideas?



i've arrowed the ridge (this is both sides too)

cheers.

 

not 100% sure, could it be due to the tyre pressure being too low? what tyre is it and what pressure are you using?

 

34 psi (cold) front mate, metzeler. has done it with pirelli and michelin too.

 

i had something like that on mine and had the same feeling when tipping in,was told it was to do with the uneven roads i used,but i used mine to commute

 

sounds about right, strange though that it's on all the tyres, riding style maybe?
how are your forks? maybe settings are out left and right? or one fork is 1mm or even less through the yokes... just thinking out loud here!

 

both sides though skippy.... i've measured the yokes, both the same.

 

done a bit of reading Si and definitely your suspension, something to do with rebound, but haven't found whether it needs to be harder or softer.... will go and have a dig...

when was your last fork service?

 

How many miles the tyre done Si?

 

forks never been serviced.

jimbo, around 6k miles.

 

I could talk tyres all day, but here is a good explanation of cupping

Motorcycle Tire Wear

 

Thanks Arthur.... Seems normal then??

 

At 6K miles, mine feels like a 2 stage tip in, its normal as shown above, it's just the last 3 to 4K miles of life after that can feel like a 50p bit, but that's the life of a commuter bike.