Go Back  Bike Forums > Bike Forums > General Cycling Discussion
Reload this Page >

Honest opinion piece on disc brakes

Notices
General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

Honest opinion piece on disc brakes

Old 02-15-21, 12:40 PM
  #51  
rydabent
Senior Member
 
Join Date: Apr 2010
Location: Lincoln Ne
Posts: 8,875

Bikes: RANS Stratus TerraTrike Tour II

Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2261 Post(s)
Liked 593 Times in 353 Posts
Originally Posted by Koyote View Post
Since you appreciate new tech so much, you must love carbon fiber.
I appreciate new tech if it is an improvement like clik shifting, clipless pedals and disc brakes are. In my judgement plastic bikes are NOT an improvement because of their price and how fragile they are. And like all plastics they get brittle in their old age.
rydabent is offline  
Old 02-15-21, 12:40 PM
  #52  
Koyote
Senior Member
 
Join Date: Sep 2017
Posts: 3,353
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2594 Post(s)
Liked 3,379 Times in 1,522 Posts
Originally Posted by biker128pedal View Post
I switched my moutain bike to disc (cable) in the rear when I broke the last frame. I could change the front but really like the wheel with the Ringle hub Iíve built up 15 years ago. Anyway the rear rim brake never worked well. The disc was a good improvement.

My road bike is rim brake carbon wheels. Work well. Better than the aluminum wheels. Next bike I want disc all around. My issue is I take the wheels off for hauling I the trunk. Cable disc stay open and I can get them back on easy. Iím afraid hydraulic will close up and using a wedge will be a pain. How much trouble do others have?
If you can insert a credit card into your wallet, you can insert a wedge into a disc brake caliper. And it will take about the same amount of time.
Koyote is online now  
Old 02-15-21, 12:42 PM
  #53  
Koyote
Senior Member
 
Join Date: Sep 2017
Posts: 3,353
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2594 Post(s)
Liked 3,379 Times in 1,522 Posts
Originally Posted by rydabent View Post
I appreciate new tech if it is an improvement like clik shifting, clipless pedals and disc brakes are. In my judgement plastic bikes are NOT an improvement because of their price and how fragile they are. And like all plastics they get brittle in their old age.
You don't seem to have a clue about cf bike prices, nor about the durability and longevity of such frames.

Stop making stuff up. Really. Just stop.
Koyote is online now  
Likes For Koyote:
Old 02-15-21, 12:59 PM
  #54  
tomato coupe
Senior Member
 
Join Date: Jul 2009
Posts: 1,886

Bikes: Colnago, Van Dessel, Factor, Cervelo, Ritchey

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 1139 Post(s)
Liked 1,561 Times in 640 Posts
Originally Posted by 70sSanO View Post
I donít have a bike with disc brakes, but an easy way to get an honest opinion is to reverse the sequence.

If disc brakes had been the norm for decades and the ďindustryĒ decided to introduce rim brakes would anyone be able to defend using rim brakes.
I've got a few questions about these new rim brakes:

They're only going to be used on road bikes?
I'm going to have to change brake pads when I swap my carbon wheels and aluminum wheels?
Braking will be worse in wet conditions?
There's a chance my carbon wheels will overheat and delaminate on a long descent?
They're going to limit the size of my tires?

And this is all to save a couple hundred grams?
tomato coupe is offline  
Likes For tomato coupe:
Old 02-15-21, 01:10 PM
  #55  
Koyote
Senior Member
 
Join Date: Sep 2017
Posts: 3,353
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2594 Post(s)
Liked 3,379 Times in 1,522 Posts
Originally Posted by tomato coupe View Post
I've got a few questions about these new rim brakes:

They're only going to be used on road bikes?
I'm going to have to change brake pads when I swap my carbon wheels and aluminum wheels?
Braking will be worse in wet conditions?
There's a chance my carbon wheels will overheat and delaminate on a long descent?
They're going to limit the size of my tires?

And this is all to save a couple hundred grams?
More importantly, it will preserve your status as a retro-grouch. (Don't forget to wear those gloves with leather palms and crochet-knit backs.)
Koyote is online now  
Old 02-15-21, 01:16 PM
  #56  
tomato coupe
Senior Member
 
Join Date: Jul 2009
Posts: 1,886

Bikes: Colnago, Van Dessel, Factor, Cervelo, Ritchey

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 1139 Post(s)
Liked 1,561 Times in 640 Posts
Originally Posted by Koyote View Post
More importantly, it will preserve your status as a retro-grouch. (Don't forget to wear those gloves with leather palms and crochet-knit backs.)
This is 70sSanO's parallel universe where disc brakes precede rim brakes, and retro-grouches become future-grouches.
tomato coupe is offline  
Likes For tomato coupe:
Old 02-15-21, 01:18 PM
  #57  
tomato coupe
Senior Member
 
Join Date: Jul 2009
Posts: 1,886

Bikes: Colnago, Van Dessel, Factor, Cervelo, Ritchey

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 1139 Post(s)
Liked 1,561 Times in 640 Posts
Does anyone have a link for the "honest" opinion piece that started this thread?
tomato coupe is offline  
Old 02-15-21, 01:24 PM
  #58  
Koyote
Senior Member
 
Join Date: Sep 2017
Posts: 3,353
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2594 Post(s)
Liked 3,379 Times in 1,522 Posts
Originally Posted by tomato coupe View Post
This is 70sSanO's parallel universe where disc brakes precede rim brakes, and retro-grouches become future-grouches.
My mind is officially blown.
Koyote is online now  
Likes For Koyote:
Old 02-15-21, 01:29 PM
  #59  
Eric F
Senior Member
 
Eric F's Avatar
 
Join Date: Jan 2020
Location: Altadena, CA
Posts: 719

Bikes: 2018 Storck Fascenario.3 Platinum, 2003 Time VX Special Pro, 1977 Nishiki ONP, 1999 Trek 9900 Team Issue

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 336 Post(s)
Liked 703 Times in 337 Posts
Originally Posted by rydabent View Post
I appreciate new tech if it is an improvement like clik shifting, clipless pedals and disc brakes are. In my judgement plastic bikes are NOT an improvement because of their price and how fragile they are. And like all plastics they get brittle in their old age.
Your "judgement" is not based on facts or evidence specific to actual CF bicycle frames in the real world.

EDIT: Here's some input from a few people familiar with carbon fiber in bicycle applications...
Originally Posted by Lennard Zinn
Carbon fiber essentially does not fatigue as long as the carbon-and-resin matrix is not damaged.

Originally Posted by Look
There is no limitation because carbon has a natural flexibility. It can be used a hundred years while maintaining the same stiffness.
Originally Posted by Easton
The good news is the fatigue life of carbon fiber is immensely more than that of metals.

Originally Posted by Kestrel
For carbon forks in general, there should not be any limited life span, as carbon composites themselves are not subject to fatigue failures as metals are. So the fatigue life of a properly made carbon composite is 'infinite'.

Last edited by Eric F; 02-15-21 at 01:44 PM.
Eric F is offline  
Likes For Eric F:
Old 02-15-21, 01:30 PM
  #60  
BlazingPedals
Senior Member
 
BlazingPedals's Avatar
 
Join Date: Dec 2004
Location: Middle of da Mitten
Posts: 11,752

Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, Catrike Speed

Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
Quoted: 1238 Post(s)
Liked 354 Times in 233 Posts
Originally Posted by TiHabanero View Post
If you want them, you need a new a bike. And who wants to sell more bikes?
Reminds me of 650B, except that there's actually a few reasons to like discs...
BlazingPedals is offline  
Old 02-15-21, 01:40 PM
  #61  
Atlas Shrugged
Senior Member
 
Join Date: Mar 2010
Posts: 444
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 247 Post(s)
Liked 245 Times in 137 Posts
Originally Posted by biker128pedal View Post
I switched my moutain bike to disc (cable) in the rear when I broke the last frame. I could change the front but really like the wheel with the Ringle hub Iíve built up 15 years ago. Anyway the rear rim brake never worked well. The disc was a good improvement.

My road bike is rim brake carbon wheels. Work well. Better than the aluminum wheels. Next bike I want disc all around. My issue is I take the wheels off for hauling I the trunk. Cable disc stay open and I can get them back on easy. Iím afraid hydraulic will close up and using a wedge will be a pain. How much trouble do others have?
None.
Atlas Shrugged is offline  
Likes For Atlas Shrugged:
Old 02-15-21, 01:48 PM
  #62  
WhyFi
Senior Member
 
WhyFi's Avatar
 
Join Date: Jan 2010
Location: TC, MN
Posts: 33,739

Bikes: R3 Disc, Haanjo

Mentioned: 343 Post(s)
Tagged: 1 Thread(s)
Quoted: 16021 Post(s)
Liked 4,773 Times in 2,516 Posts
Originally Posted by biker128pedal View Post
I switched my moutain bike to disc (cable) in the rear when I broke the last frame. I could change the front but really like the wheel with the Ringle hub I’ve built up 15 years ago. Anyway the rear rim brake never worked well. The disc was a good improvement.

My road bike is rim brake carbon wheels. Work well. Better than the aluminum wheels. Next bike I want disc all around. My issue is I take the wheels off for hauling I the trunk. Cable disc stay open and I can get them back on easy. I’m afraid hydraulic will close up and using a wedge will be a pain. How much trouble do others have?
Wedging them back open isn't difficult, but I still like to be proactive. Shimano has orange spacers that you can pop in between the pads and they also have yellow doohickies (technical term) that slide in under the brake/shift levers and prevent both inadvertent shifting and braking actuation.

Both of these items come with levers/calipers when purchased separately and, if I were buying a complete bike, I'd ask for the shop to provide them (if they don't immediately throw them away, they should have buckets full of 'em).
WhyFi is online now  
Old 02-15-21, 01:54 PM
  #63  
Notso_fastLane
Senior Member
 
Notso_fastLane's Avatar
 
Join Date: Dec 2011
Location: Layton, UT
Posts: 1,590

Bikes: 2011 Bent TW Elegance 2014 Carbon Strada Velomobile

Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 617 Post(s)
Liked 676 Times in 407 Posts
I only have two bikes. My recumbent I bought in 2011 and specifically upgraded to the disc brake version because the primary use for this bike was commuting when I lived in Seattle. I wanted good, reliable wet weather brake performance. I've found them easy to use, not too finicky (really needing about the same adjustment as my old rim brakes) and plenty reliable. I won't say I'd never go back to rim brakes, but I do remember having to be more particular about the pads I selected if I wanted good wet weather performance.

My velo has drum brakes (90mm). They seem to stop well in pretty much any condition and haven't done anything to them since I bought it (used, it was already all set up). I like them so far, but again, wouldn't be averse to switching to discs if there was a good reason. I don't think rim brakes are a thing with velos.
Notso_fastLane is offline  
Old 02-15-21, 01:57 PM
  #64  
indyfabz
Senior Member
 
indyfabz's Avatar
 
Join Date: Jan 2010
Posts: 29,165
Mentioned: 198 Post(s)
Tagged: 1 Thread(s)
Quoted: 12725 Post(s)
Liked 4,997 Times in 2,578 Posts
Originally Posted by Koyote View Post
More importantly, it will preserve your status as a retro-grouch. (Don't forget to wear those gloves with leather palms and crochet-knit backs.)
Spenco. Red, white and blue backs. My skin darkens easily. They caused the worst tan marks. Some people thought I had a skin condition.
indyfabz is offline  
Likes For indyfabz:
Old 02-15-21, 02:30 PM
  #65  
biker128pedal
Senior Member
 
biker128pedal's Avatar
 
Join Date: Jan 2007
Location: Eastern VA
Posts: 1,047

Bikes: Madone 5.0, Black Beta (Nashbar frame)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 83 Post(s)
Liked 72 Times in 56 Posts
Originally Posted by Koyote View Post
If you can insert a credit card into your wallet, you can insert a wedge into a disc brake caliper. And it will take about the same amount of time.
Originally Posted by WhyFi View Post
Wedging them back open isn't difficult, but I still like to be proactive. Shimano has orange spacers that you can pop in between the pads and they also have yellow doohickies (technical term) that slide in under the brake/shift levers and prevent both inadvertent shifting and braking actuation.

Both of these items come with levers/calipers when purchased separately and, if I were buying a complete bike, I'd ask for the shop to provide them (if they don't immediately throw them away, they should have buckets full of 'em).
I guess Iím just procrastinating and want to do some test rides. Last April COVID put a kink in my plans. That still and a new roof.

But based on my limited one on the rear experience disc on a bike is like when I went from a motorcycle with drum breaks all around to a single disc on the front.
biker128pedal is online now  
Old 02-15-21, 03:26 PM
  #66  
ofajen
Cheerfully low end
 
Join Date: Jun 2020
Posts: 659
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 191 Post(s)
Liked 268 Times in 176 Posts
Originally Posted by tomato coupe View Post
Does anyone have a link for the "honest" opinion piece that started this thread?
This I think:

https://www.cyclingweekly.com/news/p...he-year-490145

Otto
ofajen is online now  
Old 02-15-21, 03:36 PM
  #67  
tomato coupe
Senior Member
 
Join Date: Jul 2009
Posts: 1,886

Bikes: Colnago, Van Dessel, Factor, Cervelo, Ritchey

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 1139 Post(s)
Liked 1,561 Times in 640 Posts
Originally Posted by ofajen View Post
Thanks, but I don't think that's it.
tomato coupe is offline  
Old 02-15-21, 03:42 PM
  #68  
Troul 
:D
 
Troul's Avatar
 
Join Date: Oct 2013
Location: Mich
Posts: 3,381
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Liked 653 Times in 467 Posts
Originally Posted by 70sSanO View Post
If disc brakes had been the norm for decades and the ďindustryĒ decided to introduce rim brakes would anyone be able to defend using rim brakes.

Can you imagine the response from the suggestion of using the rim as a braking surface? Having to buy a new bike with rim brake caliper mounts because none of the existing bikes had any way to mount them. And having to replace a rim one day from brake wear?

John

The added stress to the frame from the single thru-bolt or side mounts at the top of the seat stays constantly being flexed. "OMGee! that'll cause metal fatigue at 45,000 miles & you will be dedz!"
__________________
-Oh Hey!
Troul is offline  
Old 02-15-21, 06:02 PM
  #69  
ofajen
Cheerfully low end
 
Join Date: Jun 2020
Posts: 659
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 191 Post(s)
Liked 268 Times in 176 Posts
Originally Posted by tomato coupe View Post
Thanks, but I don't think that's it.
Yeah I looked up The Russian Crank and found nothing related on his blog. Only a few articles are visible. Maybe it was in a newsletter that isnít on his blog. I just remembered seeing that Cycling Weekly thing on the same topic.

Otto
ofajen is online now  
Old 02-15-21, 06:11 PM
  #70  
Germany_chris
Senior Member
 
Germany_chris's Avatar
 
Join Date: Jan 2010
Location: Southern Germany
Posts: 1,236
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 196 Post(s)
Liked 302 Times in 156 Posts
Originally Posted by rydabent View Post
I appreciate new tech if it is an improvement like clik shifting, clipless pedals and disc brakes are. In my judgement plastic bikes are NOT an improvement because of their price and how fragile they are. And like all plastics they get brittle in their old age.
About 10 years ago when Niner introduced their right CF bike there was a video of the founder beating on the CF fork with a hammer and there was no damage.

If CF bikes were fragile they wouldn't make most if not all of the high end MTB market, plastic bikes are ugly but they're not delicate and they age just fine.
Germany_chris is offline  
Old 02-15-21, 06:14 PM
  #71  
ofajen
Cheerfully low end
 
Join Date: Jun 2020
Posts: 659
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 191 Post(s)
Liked 268 Times in 176 Posts
Back on the topic of disc brakes. Iíve been rocking my cheap 80s builds in recent years. Really no benefit for me to switch my skinny tire (road frame) bike to disc brakes. Iím running the same Superbe calipers Iíve used for over 40 years and might just run them another 40.

OTOH, I ride my big tire (26er) bike on dusty/muddy trails and rim brakes can get messed up. The rear u-brake froze up on my last ride due to accumulated mud and water that froze on the frame, brake and cable during the ride. Quickly fixed with water from my water bottle to unfreeze and clear away the ice mud. Still, the rims and tires are always a complete mess this time of year, which doesnít help with braking

So, Iím thinking at some point Iíll get a bike that runs disc brakes and can do 27.5 or 29er, since thatís what most of the groovy new tires are made for. Iím thinking perhaps a Surly Ogre or something like that, since it can run as a proper SS without needing a chain tensioner.

Otto
ofajen is online now  
Old 02-15-21, 07:08 PM
  #72  
70sSanO
Senior Member
 
70sSanO's Avatar
 
Join Date: Feb 2015
Location: Mission Viejo
Posts: 3,058

Bikes: 1986 Cannondale SR400 (Flat bar commuter), 1988 Cannondale Criterium XTR, 1992 Serotta T-Max, 1995 Trek 970

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 827 Post(s)
Liked 588 Times in 396 Posts
Originally Posted by tomato coupe View Post
This is 70sSanO's parallel universe where disc brakes precede rim brakes, and retro-grouches become future-grouches.
Sorry for the delay responding. I had to hurry and post replies and place orders in my parallel universe. In another week the internet will not have been invented over there.

At least my bikes are cutting edge.

John
70sSanO is offline  
Old 02-15-21, 07:43 PM
  #73  
Troul 
:D
 
Troul's Avatar
 
Join Date: Oct 2013
Location: Mich
Posts: 3,381
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Liked 653 Times in 467 Posts
Originally Posted by 70sSanO View Post
Sorry for the delay responding. I had to hurry and post replies and place orders in my parallel universe. In another week the internet will not have been invented over there.

At least my bikes are cutting edge.

John
Where will you use those items when the order arrives? The discovery of fire will become obscure while everything else is at the mercy of serendipity.
__________________
-Oh Hey!
Troul is offline  
Old 02-15-21, 08:07 PM
  #74  
70sSanO
Senior Member
 
70sSanO's Avatar
 
Join Date: Feb 2015
Location: Mission Viejo
Posts: 3,058

Bikes: 1986 Cannondale SR400 (Flat bar commuter), 1988 Cannondale Criterium XTR, 1992 Serotta T-Max, 1995 Trek 970

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 827 Post(s)
Liked 588 Times in 396 Posts
Originally Posted by Troul View Post
Where will you use those items when the order arrives? The discovery of fire will become obscure while everything else is at the mercy of serendipity.
ďTullio, it is a brake and shifter combined together. It will make you a lot of money. Yes, I like the Gran Sport too, but this is the future, well technically the past, but it will change the bicycle industry. We could be partners. Iíd like to call it CTI, Campagnolo Total Integration.Ē

John
70sSanO is offline  
Likes For 70sSanO:
Old 02-15-21, 08:31 PM
  #75  
Troul 
:D
 
Troul's Avatar
 
Join Date: Oct 2013
Location: Mich
Posts: 3,381
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Liked 653 Times in 467 Posts
Originally Posted by 70sSanO View Post
ďTullio, it is a brake and shifter combined together. It will make you a lot of money. Yes, I like the Gran Sport too, but this is the future, well technically the past, but it will change the bicycle industry. We could be partners. Iíd like to call it CTI, Campagnolo Total Integration.Ē

John
& ...... now it's 100 B.C. Soon Trex will be looking at a meteorite blasting in from the sky.
__________________
-Oh Hey!
Troul is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.