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From: zen cycle <funkmasterxx@hotmail.com>
Newsgroups: rec.bicycles.tech
Subject: Re: Grant Peterson's Thoughts on Disc Brakes
Date: Sat, 28 Sep 2024 07:59:33 -0400
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On 9/27/2024 9:39 PM, James wrote:
> On 26/9/24 06:20, AMuzi wrote:
>> On 9/25/2024 2:58 PM, sms wrote:
>>> <https://bikeretrogrouch.blogspot.com/2016/06/gps-thoughts- on-disc- 
>>> brakes.html>
>>>
>>> If I could summarize Petersen's view on disc brakes, it is that 
>>> there's nothing exactly wrong with them, but they aren't the vast and 
>>> remarkable improvement over good rim brakes that the industry has 
>>> been pushing for the last few years. In other words, they don't make 
>>> bikes with rim brakes obsolete, and shouldn't.
>>>
> 
> <snip>
> 
>>>
>>> In the end of Petersen's blug post, he concludes by saying "Don't dis 
>>> the rim brake. It's beautiful and it works, and today's rim brakes 
>>> are better than ever."
>>>
>>> Couldn't agree more.
>>
>> I'm OK with most of that.
>>
>> But braking force against the hub is the same, AEBE.  Any increase is 
>> at the margin, when a disc generates more braking force than a rim 
>> brake- a rare event given rear wheel lift.
>>
>> (less fade, less loss from wet/mud etc are not reflected in force at 
>> the hub)
>>
> 
> 
> Was there mention that disc brakes don't wear out rims?  Having worn out 
> a few pairs of rims from braking, I like that the rims on my gravel bike 
> are unspoiled after 14,000 km so far.
> 

It wasn't mentioned in this thread, but it's been discussed at length in 
this forum before. Interesting that no one brought that up here. Thanks 
for the reminder, it's a valid point.