Tools for straightening a disc?
10-31-11 | 01:06 PM
#1
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From: Columbus, Ohio
Tools for straightening a disc?
My front disc isn't perfectly true and it makes adjusting the front pad clearances a bit difficult. Already took it to a LBS and they didn't seem to do much to it. Wondering what the home options are. Brakes are Avid bb5's on my Specialized Hardrock.
10-31-11 | 01:23 PM
#2
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From: The Summit of Lee
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10-31-11 | 01:29 PM
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Bikes: Colnago CX-1 Record 11sp. Carbon Epic expert 29er, Claud Butler Dalesman. Proflex X-px Works, Cougar 653. KHS Montana Pro, Hercules Alassio. Ammoco Monte Carlo F/SS. Corratec Superbow Fun 29er. Claud Butler Midas. Kenisis T2. Peugeot Perthus.
I've done it using an adjustable spanner (wrench), the kind that has a knurled wheel to open or close the jaws. Adjust the jaws so that they are just slightly wider than the disc and gently bend the disc one way or the other, then spin the wheel to check. It is helpful to have the bike in a repair stand or hanging off the ground. Make sure the jaws are smooth and won't damage the disc. Be patient it takes time.
10-31-11 | 01:30 PM
#4
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From: South Yorkshire, England.
Bikes: Colnago CX-1 Record 11sp. Carbon Epic expert 29er, Claud Butler Dalesman. Proflex X-px Works, Cougar 653. KHS Montana Pro, Hercules Alassio. Ammoco Monte Carlo F/SS. Corratec Superbow Fun 29er. Claud Butler Midas. Kenisis T2. Peugeot Perthus.
Yep, that's the one.
10-31-11 | 02:00 PM
#6
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From: BC
10-31-11 | 02:06 PM
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10-31-11 | 02:33 PM
#9
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From: Columbus, Ohio
10-31-11 | 04:02 PM
#10
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From: Columbus, Ohio
Okay, I used the monkey wrench and it worked perfectly. I didn't want to risk any scratches so I actually taped some tissue paper to the inside edges of it. Disc is straight as an arrow now...which means I can finally run the pads closer. Feels good man.
11-03-11 | 12:33 PM
#11
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From: Wash DC metro area
Bikes: '09 Turner Sultan, '09 Fuji Tahoe SL and PBW foldable FS MTB
I use the same thing for changing tires... fingers (on the edge of the rotor- not touching the brake surfaces). Put thumb on center of wheel with fingers over edge of high spot on rotor and bend.
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