Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Mountain Biking Mountain biking is one of the fastest growing sports in the world. Check out this forum to discuss the latest tips, tricks, gear and equipment in the world of mountain biking.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 02-19-03, 10:24 AM   #1
Jim311
Senior Member
Thread Starter
 
Jim311's Avatar
 
Join Date: Dec 2002
Location: Gainesville, Florida
Bikes:
Posts: 1,791
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
So I figured out why my brakes had been terrible lately.. *PIC*

The pads had been completely worn away, both front and rear! I didn't think this was even POSSIBLE considering the brakes have only been used a couple of times. I'm really disappointed at how long these pads lasted. I rode in the mud on Sunday, and I think that finished them off for sure. I've honestly ridden them probably less than 10 times, and almost all of those were in dry conditions. This is Florida were talking about... I wasn't running the brakes for miles bombing downhill or anything. Any ideas on why they could have disintegrated so quickly?
Jim311 is offline   Reply With Quote
Old 02-19-03, 11:14 AM   #2
Maelstrom 
Wood Licker
 
Maelstrom's Avatar
 
Join Date: Apr 2002
Location: Whistler,BC
Bikes: Transition Dirtbag, Kona Roast 2002 and specialized BMX
Posts: 16,885
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The on on the right looks like it was contaminated...What kind of brakes ddo you have? Hayes? Maybe excessive rubbing or you got low quality pads stock. I ran haye mechs and ran through one set of pads in the back in 6 months and the front in 3 months.
Maelstrom is offline   Reply With Quote
Old 02-19-03, 11:46 AM   #3
Jim311
Senior Member
Thread Starter
 
Jim311's Avatar
 
Join Date: Dec 2002
Location: Gainesville, Florida
Bikes:
Posts: 1,791
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have Avids. I think there was a little rubbing, but not nearly enough to cause that to happen. Do you think it's possible that a degreaser or something could have eaten away the pads?
Jim311 is offline   Reply With Quote
Old 02-19-03, 11:54 AM   #4
Maelstrom 
Wood Licker
 
Maelstrom's Avatar
 
Join Date: Apr 2002
Location: Whistler,BC
Bikes: Transition Dirtbag, Kona Roast 2002 and specialized BMX
Posts: 16,885
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Definately. That black pad looks kinda strange. I have never had Avids but I know when my pads discolour a lot they were probably contaminated
Maelstrom is offline   Reply With Quote
Old 02-19-03, 12:29 PM   #5
Jim311
Senior Member
Thread Starter
 
Jim311's Avatar
 
Join Date: Dec 2002
Location: Gainesville, Florida
Bikes:
Posts: 1,791
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Damn... a new set of pads is like 20 bucks. That really sucks.. I just put in an order to Pricepoint 2 days ago, too
Jim311 is offline   Reply With Quote
Old 02-19-03, 12:29 PM   #6
Maelstrom 
Wood Licker
 
Maelstrom's Avatar
 
Join Date: Apr 2002
Location: Whistler,BC
Bikes: Transition Dirtbag, Kona Roast 2002 and specialized BMX
Posts: 16,885
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Don't feel bad. NEw pads for my hayes are 50$ cdn
Maelstrom is offline   Reply With Quote
Old 02-19-03, 12:33 PM   #7
Jim311
Senior Member
Thread Starter
 
Jim311's Avatar
 
Join Date: Dec 2002
Location: Gainesville, Florida
Bikes:
Posts: 1,791
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
For 20 bucks they'd better last longer than these ones did! Do you think I should replace the rotors? They aren't gouged or anything, but they do have some small abrasions and scratches on them.
Jim311 is offline   Reply With Quote
Old 02-19-03, 01:15 PM   #8
Dirtgrinder
Dances with Rocks
 
Dirtgrinder's Avatar
 
Join Date: Apr 2001
Location: Jefferson City, MO
Bikes:
Posts: 1,441
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
There is definately some other reason other than normal wear. I just replaced mine last summer after over a year of hard riding on them. And there was still some pad left.
__________________
If everything seems under control, you're just not going fast enough...

To become a registered member of BikeForums Click Here
Dirtgrinder is offline   Reply With Quote
Old 02-19-03, 01:49 PM   #9
TandemGeek
hors category
 
TandemGeek's Avatar
 
Join Date: Jan 2002
Bikes:
Posts: 7,208
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I seem to recall that some brakes were delivered with the wrong brake pad compound -- one that is very soft and wears quickly.

Contact Avid. They will most likely send you at least one set of replacement pads for gratis.

Avid Tech Support: (303) 762-9353 or email tech@avidbike.com
TandemGeek is offline   Reply With Quote
Old 02-19-03, 03:08 PM   #10
montlake_mtbkr
www.titusti.com
 
montlake_mtbkr's Avatar
 
Join Date: Feb 2003
Location: Seattle
Bikes: Titus Switchblade, Trek 4500
Posts: 320
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I've been told not to use chain cleaners or other degreasers to clean pads. If you did, that might be the problem with your pads.
montlake_mtbkr is offline   Reply With Quote
Old 02-19-03, 03:31 PM   #11
math2p14
Part of the furniture
 
math2p14's Avatar
 
Join Date: Sep 2002
Location: Exeter UK, Athens Greece.
Bikes: Specialized RH, Scott Unitrack
Posts: 930
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hey guys i went for a ride yesterday to test my brakes. I had a water bottle with me and i purred water on them and they bit like hell! perfect power. When they dried after some braking then they started sliding again and loss of brake power. Any ideas? Also black residue on the water when i showered the rotors. How can i tell if my pads are contaminated? If i sand them by using fine sand paper will i get power? At least my hydro system is ok...the problem is with the friction. DeoreXt discs by the way.

Yannis.
math2p14 is offline   Reply With Quote
Old 02-19-03, 06:47 PM   #12
Jim311
Senior Member
Thread Starter
 
Jim311's Avatar
 
Join Date: Dec 2002
Location: Gainesville, Florida
Bikes:
Posts: 1,791
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The pads are 28 bucks at the bike shop! That's only the rear, too! Insanity. Its no wonder nobody goes to the LBS anymore... I found a pair (front and rear) for 20 bucks online!
Jim311 is offline   Reply With Quote
Old 02-20-03, 11:29 AM   #13
jekyllrider
reddingmountainbiking.com
 
jekyllrider's Avatar
 
Join Date: Jun 2000
Location: Northern California
Bikes: Cannondale Jekyll 3000sl, Cannondale F500
Posts: 90
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Jim, I was curious as to how your rear brake housing project turned out. Did your use the adapters or just go with housing the whole way? By the way, Supergo has Hayes HFX comp front AND rear hydro sets for $229. Don't forget adapters, and I would recommend a bleed kit, and a couple of compression bushings to custom fit the hose length. I bought some of the pre-bled, pre-cut Hayes and thought the hose length was too long.
Scott
jekyllrider is offline   Reply With Quote
Old 02-20-03, 11:49 AM   #14
Dannihilator
User Title
 
Dannihilator's Avatar
 
Join Date: Oct 2002
Location: Annandale, New Jersey
Bikes: 2014 Surly Steamroller, 1989 Nishiki Altron
Posts: 19,419
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
That looks like Contamination.
__________________
Signature.
Dannihilator is offline   Reply With Quote
Old 02-21-03, 11:33 AM   #15
bikeCOLORADO
Got Jesus?
 
bikeCOLORADO's Avatar
 
Join Date: Feb 2003
Location: Colorado Springs, USA!
Bikes:
Posts: 465
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
math2p14 - Have you used any degreaser on your drivetrain lately? I had a near catastrophy after cleaning my bike about a year ago. I had carelessly cleaned the drivetrain using a spray on degreaser. I hopped onto one of my local trails that I'm very familiar with. Not much downhill requiring brakes at all until you drop hard over a root and then get hard on the brakes before a set of S turns on hard sandy rock. I jumped over the root and grabbed a handfull of brakes...I GOT NEARLY NO brakes from the rear and somehow magically saved myself from plowing headlong into the rocks...

It took about three full rides with plenty of hard stops to burn that degreaser off the pads...carefully keep ANY sort of chemicals, lubes, etc. far away from pads. I've heard that you can clean them with denatured alcohol if you do get them contaminated.

I've never "cleaned" my pads, sanded them or performed any other sort of maintenance on the pads themselves. I ride a lot - nearly 2,000 miles a year and swap pads at about the 1 year point.
__________________
CS BOMB
<><
bikeCOLORADO is offline   Reply With Quote
Old 02-21-03, 01:49 PM   #16
mjrohnso
Senior Member
 
Join Date: Dec 2002
Location: Dallas/Ft Worth, TX
Bikes:
Posts: 57
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'm glad to hear from all of y'all. I just got disks, so it's good to hear some feedback and what NOT to do.
mjrohnso is offline   Reply With Quote
Old 02-21-03, 05:49 PM   #17
Jim311
Senior Member
Thread Starter
 
Jim311's Avatar
 
Join Date: Dec 2002
Location: Gainesville, Florida
Bikes:
Posts: 1,791
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Jekyllride- I decided to just go with a full length housing along the top tube. The local Cannondale dealer and I are not in good standing at this juncture, and I'd have to order the parts from them. The next time I change cables I'm going to buy some most likely.. or just go hydraulic. Who knows. I'm so fed up with my F900 right now....
Jim311 is offline   Reply With Quote
Old 02-24-03, 09:49 PM   #18
srvblues00
Member
 
Join Date: Aug 2002
Location: Western NC
Bikes: Custom 01 DB XSL Pro, 99 Raleigh R700
Posts: 36
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally posted by Jim311
The pads are 28 bucks at the bike shop! That's only the rear, too! Insanity. Its no wonder nobody goes to the LBS anymore... I found a pair (front and rear) for 20 bucks online!
And how much did you pay for shipping? How long did you have to wait to get them? Point being, by the time you take into account both of those factors, it's probably going to be about the same. I do hunt around for good prices, but it's equally as important to support the LBS. We can't let places like Dick's Sporting goods take over.. they don' t have the personal aspect that you get at a shop, and most likely they are less knowlegable than a shop. Sorry for the rant! Nothing bad intended, just wanted to throw out an observation.
srvblues00 is offline   Reply With Quote
Old 02-25-03, 10:32 AM   #19
Jim311
Senior Member
Thread Starter
 
Jim311's Avatar
 
Join Date: Dec 2002
Location: Gainesville, Florida
Bikes:
Posts: 1,791
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
It's pretty easy to calculate. 28 dollars + 28 dollars = 56 bucks. I can buy the pads for 15 dollars apiece, so that makes 30 dollars, and about 5 bucks shipping.


35 dollars vs 56 dollars..... that's alot of money saved for this poor college student.
Jim311 is offline   Reply With Quote
Old 02-25-03, 10:40 AM   #20
srvblues00
Member
 
Join Date: Aug 2002
Location: Western NC
Bikes: Custom 01 DB XSL Pro, 99 Raleigh R700
Posts: 36
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I know how it goes, I'm also a poor college student.. I didn't realize you were needing pads for 2 calipers..
srvblues00 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 03:45 AM.