Irregular tyre wear.

ajb · Crazy Courier Joined: 14 May 2008 Karma :

My front tyre has an irregular tyre wear pattern, as in the tread nearer the centre of the tyre 'steps' down across the ridge, so the circumference of the tyre is not perfectly rounded, was just wandering what the cause(s) of this could be?

I am getting a new set in a couple of week anyway, mainly interested if anything else on the bike can cause this.

Thanks.

EDIT- paint diagram added
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CBR125R '05 > CB500 '00 > CBR600F '99

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

Feathering of the tread is often a sign of the tyre being underinflated, or that you are simply pushing it hard.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

ajb · Crazy Courier Joined: 14 May 2008 Karma :

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

I should add that mine do this too because I preferr them a little under the recommended pressure. They just wear out a bit more quickly is all.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

ajb · Crazy Courier Joined: 14 May 2008 Karma :

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

Kris · World Chat Champion Joined: 03 Feb 2002 Karma :

As Stinkwheel says, signs of a front being pushed a bit. Typically found on large tourers and heavier bikes. (Though the Bandit does it a bit too..)

As long as the tyres are within a few psi of recommended I wouldn't worry.
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