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


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 02-08-12, 05:55 AM   #1
xenologer
Senior Member
Thread Starter
 
Join Date: Aug 2008
Bikes:
Posts: 2,062
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
What's the point of Dual Compound brake pads?

If salmon pads work better than ordinary black pads, any reason to ever use anything but the salmons?

Assuming not, then whats the point of dual compound pads? Seems to me that good pad (salmon) combined with bad pad (black) would add up to less than just pure salmon pad, right? So no benefit there?

Been using all salmon pads myself...
xenologer is offline   Reply With Quote
Old 02-08-12, 06:12 AM   #2
Matt Gaunt
Senior Member
 
Matt Gaunt's Avatar
 
Join Date: Oct 2004
Location: London, UK
Bikes:
Posts: 2,245
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Depends on what the conditions are in which the pads are used. Wear rate and general pad behaviour cannot be summarised as simply as "good" and "bad".

What conditions do you generally ride in? i.e. is there much salt / sand / sun / rain / cold where you are?
__________________
Matt
2010 Kinesis Decade Convert2 Alloy fixie, Miche, Sora Pics soon...
2008 Kinesis RC2 Scandium/Carbon Road, Ultegra, Ksyrium Elites Pics
2007 Kinesis Pha5e Scandium hardtail, XT, Revelations, Rockets, M4s, Mavics Pics
2005 Kinesis RC Scandium/Carbon Road, Ultegra, Ksyrium SLs Pics
1996 Raleigh Max Steel, Deore XT, SRAM Attack shifters, homemade wheels Pics
Matt Gaunt is offline   Reply With Quote
Old 02-08-12, 09:41 AM   #3
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,851
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
Kool Stop's black pads aren't "bad", but they are intended for mostly dry conditions and wear better than the salmons. The salmon pads are superior in the wet but wear faster. I use salmon pads exclusively and see no benefit to the dual compound ones myself.
HillRider is offline   Reply With Quote
Old 02-08-12, 10:19 AM   #4
Booger1
Senior Member
 
Join Date: Sep 2007
Location: Gaseous Cloud around Uranus
Bikes:
Posts: 3,720
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 21 Post(s)
An attempt at the best of both worlds.....wet and dry conditions......does neither one well.
Booger1 is offline   Reply With Quote
Old 02-08-12, 10:22 AM   #5
FastJake
Constant tinkerer
 
FastJake's Avatar
 
Join Date: May 2010
Location: Madison, Wisconsin
Bikes:
Posts: 7,577
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Marketing gimmick... Choose which one you want, black or salmon. Both makes no sense.
FastJake is offline   Reply With Quote
Old 02-08-12, 10:44 AM   #6
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Posts: 29,685
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 232 Post(s)
As others have pointed out, the KS salmon pads work better in the wet, but at a cost of shorter life. That's the trade off, wear rate vs. wet braking. They also may not be suited to the hot weather and long descents, one may find out west.

As such the dual compound only makes sense for folks who almost exclusively ride in hot dry conditions, but want a measure of improved braking in case they get caught in the rain.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline   Reply With Quote
Old 02-08-12, 10:48 AM   #7
AEO
Senior Member
 
AEO's Avatar
 
Join Date: Jun 2007
Location: A Coffin Called Earth. or Toronto, ON
Bikes: Bianchi, Miyata, Dahon, Rossin
Posts: 12,258
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
you should see the BBB tristop pads. Per the name, they use 3 different compounds on the same pad.
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
http://sanfrancisco.ibtimes.com/arti...ger-photos.htm
AEO is offline   Reply With Quote
Old 02-08-12, 11:21 AM   #8
Delmarva
Senior Member
 
Delmarva's Avatar
 
Join Date: Jan 2012
Location: Virginia, USA
Bikes:
Posts: 510
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Quote:
Originally Posted by Booger1 View Post
An attempt at the best of both worlds.....wet and dry conditions......does neither one well.
Yes. A blended pad is more marketing sizzle than anything useful. Best idea would be to buy pads suited to the riding conditions. And if a change in conditions is anticipated then fit the appropriate pads.
As might be done with tires.
Delmarva is offline   Reply With Quote
Old 02-08-12, 11:41 AM   #9
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,851
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
Quote:
Originally Posted by Delmarva View Post
Yes. A blended pad is more marketing sizzle than anything useful. Best idea would be to buy pads suited to the riding conditions. And if a change in conditions is anticipated then fit the appropriate pads.
As might be done with tires.
Modern slip-in pad holders for both road and V-brakes (and some canti's) make this quite easy as no realignment is needed after the change. Just remove a small bolt or cotter pin, slip the old pad out, the new pad in and replace the fastener.
HillRider is offline   Reply With Quote
Old 02-08-12, 11:44 AM   #10
Lawrence08648
Advisor
 
Join Date: Mar 2008
Location: Central New Jersey
Bikes:
Posts: 544
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
There are times you just want to slow down or stop, then there are times you need to stop as fast as possible. For those times, I use salmon exclusively. As long as the brakes don't wear out in 1,000 or 4,000 miles, I don't care. What I see now, I'm going to get 20,000 miles or more out of salmons. I have 10,000 miles on them now and they look great.
Lawrence08648 is offline   Reply With Quote
Old 02-08-12, 11:45 AM   #11
Bill Kapaun
Senior Member
 
Bill Kapaun's Avatar
 
Join Date: Feb 2007
Location: Mid Willamette Valley, Orygun
Bikes: 86 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.
Posts: 9,277
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 50 Post(s)
I actually have a backhanded compliment for the dual compound.
My 2008 Specialized Globe had too good of front brakes to the point of doing nose stands if one wasn't careful.
The dual compound pads have now given me a controllable front brake.
Bill Kapaun is online now   Reply With Quote
Old 02-08-12, 12:03 PM   #12
Burton
Certified Bike Brat
 
Burton's Avatar
 
Join Date: Jan 2011
Location: Montreal, Quebec
Bikes:
Posts: 4,251
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
If I remember correctly the KoolStop Dual Compound pads were a 60/40 split with the salmon part being 60% and on the leading edge (at least on the inserts I used). So the black part handled the highest loads with proper pad toe-in and helped reduce wear on the salmon part. Extra lever effort in wet conditions probably put more load on the whole pad loading the salmon part more fully but the effect was pretty seamless to me. Picking a pad suitable for the precise riding conditions might be ideal but I never considered these a 'gimmick' myself.
Burton is offline   Reply With Quote
Old 02-08-12, 01:28 PM   #13
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 19,714
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 463 Post(s)
you can get mixed metallic sintered and organic friction material, disc brake pads, too.
fietsbob is offline   Reply With Quote
Old 02-08-12, 01:46 PM   #14
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,851
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
Quote:
Originally Posted by fietsbob View Post
you can get mixed metallic sintered and organic friction material, disc brake pads, too.
These contain mixed friction materials blended together but the pad is the same composition across it entire surface, not divided into segments like the pads being discussed above. Not an analogous sutuation.
HillRider is offline   Reply With Quote
Old 02-08-12, 02:20 PM   #15
krome
Senior Member
 
Join Date: Jul 2006
Bikes:
Posts: 425
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The first compound squeegees away water, the second compound gives good braking, and the third compound gives a close shave...

(there are triple compound pads as well)
krome is offline   Reply With Quote
Old 02-08-12, 04:13 PM   #16
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 19,714
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 463 Post(s)
Nope they have bands of the different materials on the disc pads too ..
Can't be specific, the wholesalers catalog is at the shop, I'm Not.
fietsbob is offline   Reply With Quote
Old 02-08-12, 10:50 PM   #17
ThermionicScott 
Gratuitous glib and snark
 
ThermionicScott's Avatar
 
Join Date: Aug 2011
Location: CID
Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers)
Posts: 13,433
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 140 Post(s)
I thought the black part was to cut down on squeal... nevertheless, the dual-compounds work so well on my bike that I have no complaints.
__________________
Quote:
Originally Posted by chandltp View Post
There's no such thing as too far.. just lack of time
RUSA #7498
ThermionicScott 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 07:23 PM.