Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the Newton-Rider International Giveaway for a Foldable Bicycle Helmet


Hydraulic Brake Caliper Problem
#1
After my recent crash which ruined by rear wheel, my rear brake was depressed at some point because I noticed the calipers are now too close to get the disc in. Any one know the way to fix this?
  Reply
#2
uhh i'm not sure on a bike however on a car you need to take the pads out and put a c clamp on it to push the fluid back then slide in the disk that is on a car basically you have to push the fluid back
The quieter you become the more you are able to hear
  Reply
#3
Bicycle disc brakes are sort of self adjusting. Undo the mounting bolts so that the calipers are loose and able to move about freely, then spin the wheel and squeeze the brake lever, this should centre the caliper on the disk. Keep the lever squeezed and re-tighten the mounting bolts. You might have to do this a couple of times to get it just right.
  Reply
#4
There are special tools to spread the pads back apart, but a flat headed screw driver works in a pinch. You just stick it between the pads and carefully pry them apart. Be careful you don't gouge the pads too much, but you can smooth them back out with sandpaper
  Reply
#5
^Beat me to it!

This is the only real way to do it unfortunately, but it's not too hard. If you can't even get a screwdriver in there then you should be able to get the pads out (unless they're Avids or Hayes) and then use a soft-headed bar to push the pistons back in (taking care not to let the other one pop out in the process.

If they're Avids or Hayes you can't get the pads out as there's a little lump that fits in the back of the pad and stops them moving. Best solution is to try and use any parts of the pad backing you can to prise them apart enough to get a screwdriver in and do the above.
  Reply
#6
Alright. Thanks guys. I'm going to give this a try tomorrow and see how it works. I've only dealt a small amount with hydraulics. I'll need to learn eventually though.
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
Question
690
08-01-2020, 08:12 AM
Last Post: Jesper
Big Grin
855
05-12-2020, 06:04 PM
Last Post: Nicholas
 
Quixy
2,171
06-27-2016, 04:53 PM
Last Post: DaveM
 
60,783
01-05-2015, 07:17 AM
Last Post: slythgoe
 
9,811
06-17-2014, 09:55 AM
Last Post: unknown
 
7,900
01-06-2014, 08:23 PM
Last Post: 1FJEF

Forum Jump:

[-]
10 Latest Posts
11-42 cogs on Road bike?
Yesterday 02:04 AM
NewBikeShopper (intro & opinion request)
Yesterday 01:57 AM
1983 Trek 720
Yesterday 12:23 AM
brakes
01-19-2021 11:25 PM
Road bike brakes upgrades
01-19-2021 01:41 PM
Do you wave to other cyclists?
01-18-2021 02:48 PM
Newton-Rider, a helmet like no other
01-15-2021 05:01 PM
Colnago R41 Handlebar
01-14-2021 10:24 PM
How much do you bike per year?
01-14-2021 04:50 PM
BMX Shoes
01-14-2021 04:42 PM

[-]
Top 5 Posters This Month
no avatar 1. Criminal
19 posts
no avatar 2. RollOn
6 posts
no avatar 3. Henry_G
5 posts
no avatar 4. Yevhen
5 posts
no avatar 5. Zviedrs
4 posts