http://citycyclingedinburgh.info/bbpress/ CityCyclingEdinburgh Forum » Topic: Disk Advice en Wed, 13 May 2026 02:00:55 +0000 http://citycyclingedinburgh.info/bbpress/topic.php?id=11281#post-127107 Fri, 04 Oct 2013 15:39:55 +0000 DaveC 127107@http://citycyclingedinburgh.info/bbpress/ <p>WC, Older X's won't take 160mm rotors as the chain stays were bent inwards to give max heal clearance. Who'd a thought?? No eye deer what that means btw. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=11281#post-127093 Fri, 04 Oct 2013 14:44:55 +0000 DaveC 127093@http://citycyclingedinburgh.info/bbpress/ <p>I think I'll end up with new discs, but I'm waiting for Cotic to respond about stock and an L3 Tekro Lyra Adapter. They've given me great service and for the cost of a few quid I'd rather give them my cash. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=11281#post-127090 Fri, 04 Oct 2013 14:29:54 +0000 Wilmington's Cow 127090@http://citycyclingedinburgh.info/bbpress/ <p>Both my discs are a little bit buckled. Just a teeny amount, but enough to make set-up a pain in the proverbial. I could get that weird fork thingy for re-aligning. Or I could get two shiny new discs... </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=11281#post-127082 Fri, 04 Oct 2013 13:58:44 +0000 DaveC 127082@http://citycyclingedinburgh.info/bbpress/ <p>I have a wire brush and have brushed the discs in the past, but only by hand. I could use my power drill and the wire brushes I have to see if this helps. At a tenner for a new disk, I think I can afford to trash one. I'll let you know how it turns out.</p> <p>I don't know how oil could contaminate the DISC!? unless it got on and then was heated as I tried braking. I have disc cleaner (that Black and white stuff The Bike Chain used to sell - I forget the name) and have tried that before. It didn't help. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=11281#post-127081 Fri, 04 Oct 2013 13:56:57 +0000 kaputnik 127081@http://citycyclingedinburgh.info/bbpress/ <p><em>I don't know how oil could contaminate the DISC!? </em></p> <p>Surface of a disc will look and feel smooth to the eye or finger, but I'm sure under a mincroscope is a myriad of tiny pits and channels into which oil and grease can sink, adhere and prove hard to dislodge. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=11281#post-127078 Fri, 04 Oct 2013 13:52:43 +0000 DaveC 127078@http://citycyclingedinburgh.info/bbpress/ <p>I have a wire brush and have brushed the discs in the past, but only by hand. I could use my power drill and the wire brushes I have to see if this helps. At a tenner for a new disk, I think I can afford to trash one. I'll let you know how it turns out.</p> <p>I don't know how oil could contaminate the DISC!? unless it got on and then was heated as I tried braking. I have disc cleaner (that Black and white stuff The Bike Chain used to sell - I forget the name) and have tried that before. It didn't help. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=11281#post-127076 Fri, 04 Oct 2013 13:40:05 +0000 LaidBack 127076@http://citycyclingedinburgh.info/bbpress/ <p>Disc pads on BB7s or Deores can become glazed.<br /> Bike Works say you could sand with very fine paper and use disc brake cleaner to restore - provided thy have some thickness left.<br /> If it's serious oil contamination they may not be able to be restored. Once you're used to the grip of a front disc you get spoiled.</p> <p>Clean the disc rotors with brake cleaner and check for scores.</p> <p>You'll know this but for general audience...! <em>On mech ones the non-moving inside pad should be moved in close every so often to prevent the rotor bending too much. People like moving outside pad as it's easy - particularly on the BB7s which have an easy to use red wheel to dial in. The bigger inside pad also has a wheel but is often sticky and needs a torque key. Shimano just use Allen keys on both.<br /> Almost all disc will make a noise at some time or another as pads brush rotor till they bed in... Hydraulic discs are self adjusting. </em> </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=11281#post-127071 Fri, 04 Oct 2013 13:30:27 +0000 Dunny 127071@http://citycyclingedinburgh.info/bbpress/ <p>The only time I've heard of discs being glazed is at Krispy Kreme. </p> http://citycyclingedinburgh.info/bbpress/topic.php?id=11281#post-127067 Fri, 04 Oct 2013 13:22:52 +0000 DaveC 127067@http://citycyclingedinburgh.info/bbpress/ <p>My 2 year old CX bike is being a bit rubbish in the braking dept. I've had it serviced, and new cables put on. The mech says he thinks the discs have become Glazed. Anyone heard this before? I put new pads on, and now new cables. Suppose new disks might help, but was hoping not to have to replace everything!</p> <p>Ideas? </p>