Originally Posted by
cyccommute
It's probably brake judder. It may be related to a variety of issued from a warped disc to flex in the fork to a loose headset to the wavy rotors your bike came with. Check to make sure that headset is properly adjusted, that the brake caliper is tight, that there is no play in the fork's sliders and that the wheels are installed properly.
Thanks. In no particular order, calliper is tight, forks are fine, no play in headset, and wheels are fine as far as I can work out. So must be either warped rotors or just their shape. Thanks
