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#1
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Dual Piviot brake question
The frame on my road bike has just been replaced under warranty and
yesterday I collected the bike from my local bike shop. The dual pivot brakes move on the bolt fixing them to the frame/forks. I always thought they were meant to be firmly fixed and not move. I asked my LBS who said they are meant to move to centre the brakes as they are pulled on. I had always centred the brakes when making any adjustments by using the small centre adjustment screw on the brakes. Should the brakes move on the frame fixing bolt or not? Thanks. Ian |
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Dual Piviot brake question
On Mar 21, 8:07 am, Ian wrote:
The frame on my road bike has just been replaced under warranty and yesterday I collected the bike from my local bike shop. The dual pivot brakes move on the bolt fixing them to the frame/forks. I always thought they were meant to be firmly fixed and not move. I asked my LBS who said they are meant to move to centre the brakes as they are pulled on. I had always centred the brakes when making any adjustments by using the small centre adjustment screw on the brakes. Should the brakes move on the frame fixing bolt or not? Thanks. Ian No. There should be a star lock washer between the brake and the fork to keep the brake from moving. |
#3
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Dual Piviot brake question
Ian wrote:
The dual pivot brakes move on the bolt fixing them to the frame/forks. What brakes are installed? For those dual pivot brakes I know this would mean they are not properly installed, a safety hazard. -- MfG/Best regards helmut springer panta rhei |
#4
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Dual Piviot brake question
Thanks for answers. The brakes are Tektro which came with my Giant
OCR2. I've maintained the brakes a few times and always had them tight on the frame/forks. But my LBS said they should move when I collecet the bike form them. I'll check all their workmanship and contact Giant after Easter. Ian |
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Dual Piviot brake question
In article
, Ian wrote: Thanks for answers. The brakes are Tektro which came with my Giant OCR2. I've maintained the brakes a few times and always had them tight on the frame/forks. But my LBS said they should move when I collecet the bike form them. I'll check all their workmanship and contact Giant after Easter. I propose that you go in there and at least tighten the mounting nut. Maybe even remove the brakes and inspect them. -- Michael Press |
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Dual Piviot brake question
Ian wrote:
Should the brakes move on the frame fixing bolt or not? No way, the fact that they don't move around is one of the benefits of dual pivot brakes! -- Work and recreation are not often effected at the same time. One using a bicycle in business makes an exception to the rule. - Dr. Edgar H. Earl, Rochester. (~1892) |
#7
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Dual Piviot brake question
Thanks for replies. I remember when I got the bike new I had to fit an
extra washer on the main bolt as I couldnt tighten the rear brake enough on to the frame. The LBS didn't keep this when they replaced the brakes. I've now removed and refitted both brakes and found for some reason they have taken the blocks off and refitted them badly toed out and they replaced one of the cable guides/sleeves, not with a new one but with something which is rusty inside. I feel a letter to the manufacturer coming on. |
#8
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Dual Piviot brake question
Ian wrote:
The frame on my road bike has just been replaced under warranty and yesterday I collected the bike from my local bike shop. The dual pivot brakes move on the bolt fixing them to the frame/forks. I always thought they were meant to be firmly fixed and not move. I asked my LBS who said they are meant to move to centre the brakes as they are pulled on. I had always centred the brakes when making any adjustments by using the small centre adjustment screw on the brakes. Should the brakes move on the frame fixing bolt or not? Thanks. Ian ----------------- yes, I had the same misconception when I first started riding. You should not use the screw to center the brakes. The brakes should be tight on the frame, but not so tight that you can't center the brakes by pushing on the brake shoes. |
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