brakes???

[mad bout mtb]

 

How do i sharpen up my rear hydrolic disk brake?or swap the front and rear caliper?

mad bout mtb2009-05-27 07:39:43

[Racer X]

Have them bled.

[Santa C]

Not an expert, don't you have to bleed the brakes>?

[onebynine]

They might just need adjustment, on the brake lever there should be a small allen key that you can adjust, normally its on the pushrod that goes into the master cylinder

[mach7-7]

Firstly what make and model are your brakes?

I would start by making sure that your caliper is centred with respect to your disc ( rotor). After rocky rides, sometimes the caliper bolts work their way loose causing the caliper to float and the one piston extends more than the other one at times. Obviously each piston should move an equal distance which means your pads should wear evenly if sharing the friction 50/50. This will definitely affect the overall distance of brake lever travel.

Secondly, as mentioned above by another hubber, re-bleed your braking system. Shimano systems are a breeze while the Avid systems are more difficult and may require your local bike shop for assistance.

 

There should never be a reason to swap calipers around just for the hell of it. They either function correctly or they don't ( due to seized pistons or worn out seals).

 

hope this helps

 

Cheers

[BrendonMyb]

Firstly what make and model are your brakes?

I would start by making sure that your caliper is centred with respect to your disc ( rotor). After rocky rides' date=' sometimes the caliper bolts work their way loose causing the caliper to float and the one piston extends more than the other one at times. Obviously each piston should move an equal distance which means your pads should wear evenly if sharing the friction 50/50. This will definitely affect the overall distance of brake lever travel.

Secondly, as mentioned above by another hubber, re-bleed your braking system. Shimano systems are a breeze while the Avid systems are more difficult and may require your local bike shop for assistance.

 

There should never be a reason to swap calipers around just for the hell of it. They either function correctly or they don't ( due to seized pistons or worn out seals).

 

hope this helps

 

Cheers

[/quote']

 

Yup your 1st statement is correct. That happened to me. I re-aligned my caliper in relation to the rotor & what a difference.

 

Also anothe rthing that could be a bit of a problem is your pad thickness. They might not be totally worn but i have found in my personal experience that they start under performing when the pad is fairly worn

 

People might shoot me down for that statement as logically it cant really make a difference as the pad is still being comrpessed against the rotor. In my case it might also have been due to rubbish pads & wearing down to a crappy compund of the pad

BumpNgrind2009-05-28 05:26:26

[Johan Bornman]

If you can drag your rear wheel, your brakes work fine.

 

Rear brakes do just about zero stopping and all stopping comes from the front brakes, hence the bigger discs up there to take the extra flak.

 

You should learn how to brake by using mostly your front brake and only the rear brake when you have traction issues.

 

 

[mad bout mtb]

Thanks for all the great advise