Strange braking - bike pulls to one side

[andrew_s]

Have a look for frame / fork cracks while you are at it

I've had rear-wheel steering under braking when a rear dropout separated from the chainstay.

 

[col]

Theres no such thing as a warped tyre.

Taint the brakes. Bent frame as prev. suggested, bent forks, front wheel out of dish or rear wheel misaligned. If any of the above the bike wont ride straight with hands off the bars anyway. Very strange. Might it have something to do with the brake cable itself if its too short.

Reading this made me think of a cable route being wrong maybe,?

 

[Jacomus-rides-Gen]

Thanks for the suggestions all, turns out no-one got it!

After having a good old clean of the bike, and I mean a really good clean I suddenly thoguht, why not do the headset while you're at it? Problem found.

Sadly undergreased bearing races.

So I whipped them out and gave them a good scrub and a hearty smear of grease, the problem is totally sorted. The bike tracks true now, and it was great braking and not having to resist it pulling left.

 

[spandex]

sweet good job in finding it.

 

[nom de plum]

Thanks for the suggestions all, turns out no-one got it!

snip


Sadly undergreased bearing races.

snip
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I was going to say that!!!!!

 

[mickle]

I was going to say that!!!!!

Me too!