Thorn Cycles Forum
Technical => General Technical => Topic started by: rafiki on February 02, 2019, 01:22:39 PM
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I am about to overhaul the V-brakes on my Sterling. New cables and outers, pads, noodles etc. When it's all apart where is the best start position to set the small centering screws at? I guess about half-way but just wondered if there is a special point.
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Hello Brian
When I have done that, I have started off at the half-way point, as you suggest. And yes, I have also replaced noodles etc as you plan to do.
The main problem I have found is the centering screws being seized in - and impossible to shift without stripping or damaging the screw head. But that has mainly happened on cheaper brakes, and/or fitted on neglected bikes - not happened on any of my Thorns. I usually put a spot of copper slick on to reduce likelihood of it happening.
Lewis
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Thanks Lewis. Fortunately the small screws are moving reasonably freely but I have always thought them slightly tight to adjust though not bad enough to damage the heads. I take your point and will remove them completely, clean them and the holes before putting them back with a spot of anti-seize.
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Good luck! initially I was worried in case anti-seize would make them work loose and fall out . . . but that has never happened. I think copper slick or similar does not encourage stuff to work loose, a well-maintained thread works best. But I have got into the habit of checking very frequently that all centred up ok - adjustment so easy once you get the hang of it.
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Those tiny little centering screws on V brakes, a year ago one was unusually tight on one of my brakes so I used a bit more effort, ... which broke part of my XT brake. I do not recall if it was a spring stop or what, but it was a very small piece of metal that cracked right off. So, if it seems to need more force than you would expect, be very careful. I had to buy a new brake unit, this time I bought a Tektro.
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Thanks for the heads-up.